Page 108
Seat Heater Control Module: Service and Repair Heated Seat Module - Installation
INSTALLATION
CAUTION: The Heated Seat Module mounting tabs can be damaged during module removal and
installation. Use care to properly align tabs
to prevent binding that could result in tab breakage.
1. Install the heated seat module (2) into the vehicle. 2. Position the retaining clips (1) with the
retaining holes (3) in the mounting bracket (4). Firmly apply even pressure to the module (2) until
all four
retaining clips (1) snap into place.
3. Connect the wire harness connector (2) to the heated seat module (3). 4. Connect the battery
negative cable. 5. Check for proper heated seat system operation.
Headlamp Washer Relay - Description
Headlamp Washer Motor Relay: Description and Operation Headlamp Washer Relay - Description
DESCRIPTION
The headlamp washer relay (1) is a conventional International Standards Organization (ISO) micro
relay. Relays conforming to the ISO specifications have common physical dimensions, current
capacities, terminal patterns (2), and terminal functions. This relay is contained within a small,
rectangular, molded plastic housing and is connected to all of the required inputs and outputs
through five integral male spade-type terminals that extend from the relay base plate.
The headlamp washer relay is located in the Integrated Power Module (IPM) in the engine
compartment, near the battery. Refer to the layout label on the underside of the IPM cover for
specific relay cavity assignment information. The headlamp washer relay cannot be adjusted or
repaired and, if ineffective or damaged, the unit must be replaced.
Page 220
Relay Box: Description and Operation Junction Block - Operation
OPERATION
All of the circuits entering and leaving the Junction Block (JB) do so through three wire harness
connectors, which are connected to the JB through integral connector receptacles molded into the
JB housing. Internal connection of all of the JB circuits is accomplished by a printed circuit board.
Refer to the appropriate wiring information for complete circuit diagrams. The wiring information
includes wiring diagrams, proper wire and connector repair procedures, details of wire harness
routing and retention, connector pin-out information and location views for the various wire harness
connectors, splices and grounds.
Auto Shutdown Relay - Removal
Main Relay (Computer/Fuel System): Service and Repair Auto Shutdown Relay - Removal
REMOVAL
The ASD relay is located in the engine compartment within the Power Distribution Center (PDC).
Refer to label on power distribution center cover for relay location.
1. Remove power distribution center cover. 2. Remove relay from power distribution center. 3.
Check condition of relay terminals and power distribution center connector terminals for damage or
corrosion. Repair if necessary before installing
relay.
4. Check for pin height (pin height should be the same for all terminals within the power distribution
center connector). Repair if necessary before
installing relay.
Page 255
Engine Control Module: Removal and Replacement
Powertrain Control Module - Removal
REMOVAL
CAUTION: Certain ABS systems rely on having the Powertrain Control Module (PCM) broadcast
the Vehicle Identification Number (VIN)
over the bus network. To prevent problems of DTCs and other items related to the VIN broadcast, it
is recommend that you disconnect the ABS CAB (controller) temporarily when replacing the PCM.
Once the PCM is replaced, write the VIN to the PCM using a diagnostic scan tool. This is done
from the engine main menu. Arrow over to the second page to "1. Miscellaneous". Select "Check
VIN" from the choices. Make sure it has the correct VIN entered before continuing. When the VIN is
complete, turn off the ignition key and reconnect the ABS module connector. This will prevent the
setting of DTCs and other items associated with the lack of a VIN detected when you turn the key
ON after replacing the PCM.
CAUTION: Use a diagnostic scan tool to reprogram the new PCM with the vehicles original
identification number (VIN) and the vehicles
original mileage. If this step is not done, a Diagnostic Trouble Code (DTC) may be set.
The PCM (1) is attached to the right-front inner fender located in the engine compartment. To avoid
possible voltage spike damage to the PCM, ignition key must be off, and negative battery cable
must be disconnected before unplugging PCM connectors.
1. Disconnect and isolate negative battery cable. 2. Carefully unplug the 38-way connectors (2)
from PCM.
Page 240
IGNITION SWITCH (KEY-ON) MODE
This is an Open Loop mode. When the fuel system is activated by the ignition switch, the following
actions occur:
- The PCM pre-positions the idle air control (IAC) motor.
- The PCM determines atmospheric air pressure from the MAP sensor input to determine basic fuel
strategy.
- The PCM monitors the engine coolant temperature sensor input. The PCM modifies fuel strategy
based on this input.
- Intake manifold air temperature sensor input is monitored.
- Throttle position sensor (TPS) is monitored.
- The auto shutdown (ASD) relay is energized by the PCM for approximately three seconds.
- The fuel pump is energized through the fuel pump relay by the PCM. The fuel pump will operate
for approximately three seconds unless the engine is operating or the starter motor is engaged.
- The O2S sensor heater element is energized via the ASD relay. The O2S sensor input is not used
by the PCM to calibrate air-fuel ratio during this mode of operation.
ENGINE START-UP MODE
This is an Open Loop mode. The following actions occur when the starter motor is engaged.
The PCM receives inputs from:
- Battery voltage
- Engine coolant temperature sensor
- Crankshaft position sensor
- Intake manifold air temperature sensor
- Manifold absolute pressure (MAP) sensor
- Throttle position sensor (TPS)
- Starter motor relay
- Camshaft position sensor signal
The PCM monitors the crankshaft position sensor. If the PCM does not receive a crankshaft
position sensor signal within 3 seconds of cranking the engine, it will shut down the fuel injection
system.
The fuel pump is activated by the PCM through the fuel pump relay.
Voltage is applied to the fuel injectors with the ASD relay via the PCM. The PCM will then control
the injection sequence and injector pulse width by turning the ground circuit to each individual
injector on and off.
The PCM determines the proper ignition timing according to input received from the crankshaft
position sensor.
ENGINE WARM-UP MODE
This is an Open Loop mode. During engine warm-up, the PCM receives inputs from:
- Battery voltage
- Crankshaft position sensor
- Engine coolant temperature sensor
- Intake manifold air temperature sensor
- Manifold absolute pressure (MAP) sensor
- Throttle position sensor (TPS)
- Camshaft position sensor signal
- Park/neutral switch (gear indicator signal-auto. trans. only)
- Air conditioning select signal (if equipped)
- Air conditioning request signal (if equipped)
Based on these inputs the following occurs:
- Voltage is applied to the fuel injectors with the ASD relay via the PCM. The PCM will then control
the injection sequence and injector pulse width by turning the ground circuit to each individual
injector on and off.
- The PCM adjusts engine idle speed through the idle air control (IAC) motor and adjusts ignition
timing.
- The PCM operates the A/C compressor clutch through the clutch relay. This is done if A/C has
been selected by the vehicle operator and requested by the A/C thermostat.
- When engine has reached operating temperature, the PCM will begin monitoring O2S sensor
input. The system will then leave the warm-up mode and go into closed loop operation.
Page 410
Wiper Relay: Description and Operation ON and OFF Wiper Relay - Operation
OPERATION
The wiper on/off relay is an electromechanical switch that uses a low current input from the Front
Control Module (FCM) to control a high current output to the wiper motor. The movable common
feed contact point is held against the fixed normally closed contact point by spring pressure. When
the relay coil is energized, an electromagnetic field is produced by the coil windings. This
electromagnetic field draws the movable relay contact point away from the fixed normally closed
contact point, and holds it against the fixed normally open contact point. When the relay coil is
de-energized, spring pressure returns the movable contact point back against the fixed normally
closed contact point. A resistor is connected in parallel with the relay coil in the relay, and helps to
dissipate voltage spikes and electromagnetic interference that can be generated as the
electromagnetic field of the relay coil collapses.
The wiper on/off relay terminals are connected to the vehicle electrical system through a connector
receptacle in the Integrated Power Module (IPM). The inputs and outputs of the wiper on/off relay
include:
- Common Feed Terminal - The common feed terminal (30) is connected to the common feed
terminal of the wiper high/low relay at all times through the wiper on/off relay output circuit.
Coil Ground Terminal - The coil ground terminal (85) is connected to a control output of the FCM
through a wiper on/off relay control circuit. The FCM controls wiper motor operation by controlling a
ground path through this circuit.
- Coil Battery Terminal - The coil battery terminal (86) receives battery current at all times from a
fuse in the IPM through a fused ignition switch output (run-acc) circuit.
- Normally Open Terminal - The normally open terminal (87) receives battery current at all times
from a fuse in the IPM through a fused ignition switch output (run-acc) circuit, and provides battery
current to the wiper on/off relay output circuit whenever the relay is energized.
- Normally Closed Terminal - The normally closed terminal (87A) is connected to ground at all
times through a take out of the headlamp and dash wire harness with an eyelet terminal connector
that is secured by a screw to the front end sheet metal, and is connected to the wiper on/off relay
output circuit whenever the relay is de-energized.
The wiper on/off relay as well as the hard wired inputs and outputs of the relay may be diagnosed
using conventional diagnostic tools and procedures. Refer to the appropriate wiring information.
Keyless Systems - Intermittently Inoperative
Keyless Start Control Module: Customer Interest Keyless Systems - Intermittently Inoperative
NUMBER: 08-010-10
GROUP: Electrical
DATE: May 14, 2010
THE wiTECH DIAGNOSTIC APPLICATION IS THE PREFERRED METHOD FOR FLASHING
ECUs.
HELP USING THE wiTECH DIAGNOSTIC APPLICATION FOR FLASHING AN ECU IS
AVAILABLE BY SELECTING "HELP" THEN "HELP CONTENTS" AT THE TOP OF THE wiTECH
DIAGNOSTIC APPLICATION WINDOW.
THE wiTECH SOFTWARE LEVEL MUST BE AT RELEASE 10.04 OR HIGHER TO PERFORM
THIS PROCEDURE.
StarMOBILE DESKTOP CLIENT MAY ALSO BE USED TO PERFORM THIS PROCEDURE.
SUBJECT: Flash: WIN Module For Intermittent RKE Functions
OVERVIEW: This bulletin involves flash reprogramming the Wireless Ignition Node (WIN) with new
software.
MODELS:
2010 (DS) Ram Truck 1500
2010 (JC) Journey
2010 (LC) Challenger
2010 (LE) International 300 or Charger
2010 (LX) 300 and/or Charger
2010 (WK) Grand Cherokee
2010 (WH) International Grand Cherokee
2010 (XK) Commander
2010 (XH) International Commander
SYMPTOM/CONDITION: Customer may experience intermittent FOBIK operating characteristics.
Dealers are required to verify the manufacturer of the Wireless Ignition Node Module (WIN) and if
necessary, Flash the WIN with updated software.
DIAGNOSIS: If the vehicle operator describes the above Symptom/Condition, perform the Repair
Procedure.
REPAIR PROCEDURE: Check manufacturer of WIN Module
1. Using the wiTECH Diagnostic Application verify the WIN module is manufactured by Marquardt
2. Click on the reports tab on the top of the main page.
3. Select Run/View Reports.
4. Select ECU Details report.
5. Click on the arrow key to run the report.
6. Scroll to the bottom to find the WIN section.
Page 369
Page 163
Headlamp Alignment Control Module: Description and Operation Headlamp Leveling Module Operation
OPERATION
The microprocessor in the Automatic Headlamp Leveling Module (AHLM) contains the logic circuits
and controls all of the features of the automatic headlamp leveling system. The AHLM uses
On-Board Diagnostics (OBD) and can communicate with other modules in the vehicle as well as
with a diagnostic scan tool using the Controller Area Network (CAN) data bus. This method of
communication is used by the AHLM to communicate with the ElectroMechanical Instrument
Cluster (EMIC) (also known as the Cab Compartment Node/CCN), the Wireless Ignition Node
(WIN) and with the Controller Antilock Brake (CAB) (also known as the Antilock Brake System/ABS
or Electronic Stability Program/ESP controller).
The AHLM microprocessor continuously monitors inputs from the EMIC, the WIN and the CAB. The
AHLM then energizes or de-energizes the front and rear axle sensors which monitor the vehicle
height, and the headlamp leveling motors which adjust the headlamp reflectors. When the axle
sensors are energized, the AHLM monitors and evaluates the Pulse Width Modulated (PWM)
signals from the sensors and actuates the headlamp leveling motors on each front lamp unit as
appropriate. The AHLM also monitors all of the system circuits, then sets active and stored
Diagnostic Trouble Codes (DTC) for any monitored system faults it detects.
The AHLM receives battery voltage on a fused ignition switch output (RUN) circuit, and is grounded
at all times through a hard wired remote ground point. These connections allow the AHLM to
operate only when the ignition switch is in the ON position.
The hard wired circuits of the AHLM may be diagnosed using conventional diagnostic tools and
procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods
will not prove conclusive in the diagnosis of the AHLM or the electronic controls or communication
between modules and other devices that provide some features of the automatic headlamp leveling
system. The most reliable, efficient, and accurate means to diagnose the AHLM or the electronic
controls and communication related to automatic headlamp leveling system operation requires the
use of a diagnostic scan tool. Refer to the appropriate diagnostic information.
Page 224
Relay Box: Service and Repair Junction Block - Installation
INSTALLATION
NOTE: If the Junction Block (JB) is being replaced with a new unit, be certain to transfer each of
the fuses, circuit breakers and relays from
the inoperative JB to the proper cavities of the replacement JB. Refer to Junction Block in Wiring
Diagrams for the location of complete circuit diagrams and cavity assignments for the JB.
1. Position the JB into its mounting location on the JB mounting bracket. 2. Align the two lower
retaining tabs (3) with the slots in the bottom of the bracket. 3. Align the snap clips (2) at the top of
the JB with the mounting slots in the top of the bracket. 4. Grasp the JB firmly with both hands and
push it into the bracket to engage the two snap clips (2) that secure the top of the JB. 5. Install and
tighten the four screws (1) that secure the JB to the mounting bracket. Tighten the screws to 2 Nm
(20 in. lbs.).
6. Reconnect the top side wire harness connector to the connector receptacle on the JB.
Integrated Power Module (IPM) - Removal
Power Distribution Module: Service and Repair Integrated Power Module (IPM) - Removal
REMOVAL
1. Disconnect and isolate the battery negative cable. 2. Remove the Integrated Power Module
(IPM) cover by pulling up on the cover tabs (7) and pivoting the cover outward.
3. Remove the nut (2) from the IPM B+ terminal stud. 4. Remove the battery positive cable (3) from
the IPM B+ terminal stud.
Page 13
Alarm Module: Service and Repair Intrusion Module - Installation
INSTALLATION
1. Position the intrusion module (1) onto the two studs (3) on the right quarter inner panel (2). 2.
Install and tighten the two nuts (5) that secure the module to the studs on the quarter inner panel.
Tighten the nuts to 2 Nm (20 in. lbs.). 3. Reconnect the take out of the body wire harness to the
connector receptacle (4) on the rearward side of the module. 4. Reinstall the trim onto the inside of
the right quarter inner panel. See: Body and Frame/Interior Moulding / Trim/Trim Panel/Service and
Repair/Pillar Trim/C-Pillar Trim Panel - Installation.
5. Reconnect the battery negative cable.
Page 100
Pedal Positioning Module: Service and Repair Adjustable Pedal Module - Installation
INSTALLATION
CAUTION: The Adjustable Pedals Module mounting tabs can be damaged during module
installation. Use care to properly align tabs to
prevent binding that could result in tab breakage.
1. Place the module (4) into position making sure the mounting tabs are properly aligned with the
front bracket. 2. Push down on the rear of the module (4) snapping the retaining clips into place in
the side brackets. 3. Connect the adjustable pedals module rear harness connectors (1). 4.
Connect the adjustable pedals module front harness connectors. 5. Install the driver seat
cushion/cover (2) See: Body and Frame/Seats/Seat Cover/Service and Repair/Seat Cushion Cover
- Installation. 6. Connect the battery negative cable. 7. Verify system and vehicle operation.
Page 384
before releasing the window switch.
4. Move the driver side front window upward until the window stalls in the full up position. Allow the
window motor to stall for at least 2 second before
releasing the window switch.
5. Repeat steps 1 through 4 to calibrate the module for the passenger side front window.
6. Verify that the windows are properly calibrated by operating the "Auto-Up" feature on the
windows. Repeat this procedure if the calibration failed.
7. For vehicles equipped:
> with Electronic Stability Program (ESP), continue with Section J. Calibrate the Steering Angle
Sensor (SAS).
> without Electronic Stability Program (ESP), clear all Diagnostic Trouble Codes (DTC's),
disconnect and remove the wiTECH VCI pod, remove the battery charger and return the vehicle to
the customer.
J. Calibrate the Steering Angle Sensor (LX/LC)
NOTE:
The Steering Angle Sensor (SAS) requires calibration (initialization) using the wiTECH scan tool. If
the SAS is not calibrate following battery reconnection, the ESP/BAS indicator lamp will flash
continuously with no Diagnostic Trouble Codes (DTC's).
1. Position the front wheels straight ahead and center the steering wheel.
2. Connect the wiTECH VCI pod to the vehicle data link connector
3. Place the ignition in the "RUN" position.
4. Launch the wiTECH Diagnostic Application.
5. Starting at the "Vehicle View Screen" screen, select "ABS Icon".
6. Select the "Misc. Functions" tab.
7. Select "Initialize ECU" from the list.
8. Follow the wiTECH on-screen instruction to complete the drive test.
9. After calibration is complete, clear all DTC's.
10. Disconnect and remove the wiTECH VCI pod, remove the battery charger and return the
vehicle to the customer.
Page 137
Compressor Clutch Relay: Service and Repair A/C Clutch Relay - Installation
INSTALLATION
NOTE: LHD gasoline model shown. Diesel and RHD models similar.
1. Position the A/C clutch relay (2) into the receptacle of the power distribution center (PDC) (1). 2.
Align the A/C clutch relay terminals with the terminal cavities in the power distribution center
receptacle and push down firmly on the relay until
the terminals are fully seated.
3. Close the cover of the power distribution center. 4. Reconnect the negative battery cable.
Page 206
Power Distribution Module: Description and Operation Integrated Power Module (IPM) - Operation
OPERATION
All of the current from the battery and the generator output enters the integrated power module via
a stud on the top of the module. Internal connections of all of the power distribution center circuits
is accomplished by a combination of bus bars and a printed circuit board.
Description and Operation
Pedal Positioning Module: Description and Operation
DESCRIPTION
The Adjustable Pedals Module (APM) is located underneath the driver seat, towards the front and
on the outboard side. It is used in conjunction with the other modules in the memory system.
Page 93
Memory Positioning Module: Service and Repair Memory Seat Module - Installation
INSTALLATION
CAUTION: The Memory Seat Module (MSM) mounting tabs can be damaged during module
installation. Use care to properly align tabs to
prevent binding that could result in tab breakage.
1. Place the module (4) into position making sure the mounting tabs are properly aligned with the
front bracket. 2. Push down on the rear of the module (4) snapping the retaining clips into place in
the side brackets. 3. Connect the MSM rear harness connectors (1). 4. Connect the MSM front
harness connectors. 5. Install the driver seat cushion/cover (2) See: Body and Frame/Seats/Seat
Cover/Service and Repair/Seat Cushion Cover - Installation. 6. Connect the battery negative cable.
7. Using an appropriate scan tool go to the MSM miscellaneous functions and perform the
standardization routine. 8. Verify system and vehicle operation.
Page 42
Navigation Module: Service and Repair Traffic Module - Installation
INSTALLATION
1. Install the module and fasteners. 2. Connect the electrical connectors. 3. Install the rear quarter
trim panel. Refer to See: Body and Frame/Interior Moulding / Trim/Trim Panel/Service and
Repair/Luggage Compartment
Trim/Quarter Trim Panel - Installation.
4. Connect the battery negative cable.
Memory Seat Module - Description
Memory Positioning Module: Description and Operation Memory Seat Module - Description
DESCRIPTION
NOTE: The scan tool standardization process must be performed on the Memory Seat Module
(MSM) any time a new module is installed or
the existing module is reflashed.
The Memory Seat Module (MSM) is located underneath the driver seat, towards the front and on
the outboard side. It is used in conjunction with the other modules in the memory system to recall
the driver seat to one of two preset seat positions (horizontal, vertical, and recliner). The switch for
the memory seat programming and selection mounts on the driver door trim panel. The memory
system is able to store and recall all driver side power seat positions, outside mirror positions and
power adjustable pedal position. The system can be set for two different drivers. On vehicles with a
factory installed radio connected to the Controller Area Network (CAN) data bus network, the
memory system is also able to store and recall up to twelve radio station presets (six AM and six
FM), also for two drivers. The memory system will also store and recall the last station listened to
for each driver, even if it is not one of the twelve preset stations.
The memory system will automatically recall all of these settings when a button of the memory
switch is depressed, or when the doors are unlocked using the Remote Keyless Entry (RKE)
transmitter (if the "RKE Linked to Memory" feature is enabled). If the vehicle has more than two
drivers the RKE transmitter recall of memory features can be disabled. This is a customer
programmable feature of the Electronic Vehicle Information Center (EVIC).
Page 21
Entertainment System Control Module: Service and Repair Satellite Video Module - Installation
INSTALLATION
1. Install the satellite video module and mounting fasteners. 2. Connect the antenna (1) and
electrical connector (2). 3. Install the right rear quarter trim panel. See: Body and Frame/Interior
Moulding / Trim/Trim Panel/Service and Repair/Pillar Trim/C-Pillar Trim
Panel - Installation.
4. Connect the battery negative cable.
Instrument Cluster Switch Pod - Removal
Integrated Accessory Switch Assembly: Service and Repair Instrument Cluster Switch Pod Removal
Lower
LOWER
WARNING: To avoid serious or fatal injury on vehicles equipped with airbags, disable the
Supplemental Restraint System (SRS) before
attempting any steering wheel, steering column, airbag, seat belt tensioner, impact sensor, or
instrument panel component diagnosis or service. Disconnect and isolate the battery negative
(ground) cable, then wait two minutes for the system capacitor to discharge before performing
further diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper
precautions could result in accidental airbag deployment.
1. Disconnect and isolate the battery negative cable. 2. Remove the center bezel from the
instrument panel. 3. Disconnect the wire harness connector from the back of the lower instrument
panel switch pod (1). 4. Remove the four screws (2) that secure the switch pod to the back of the
center bezel. 5. Remove the lower switch pod from the center bezel.
Upper
UPPER
WARNING: To avoid serious or fatal injury on vehicles equipped with airbags, disable the
Supplemental Restraint System (SRS) before
attempting any steering wheel, steering column, airbag, seat belt tensioner, impact sensor, or
instrument panel component diagnosis or service. Disconnect and isolate the battery negative
(ground) cable, then wait two minutes for the system capacitor to discharge before performing
further diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper
precautions could result in accidental airbag deployment.
1. Disconnect and isolate the battery negative cable.
Page 448
Parking Assist Switch: Description and Operation Park Assist Switch - Operation
OPERATION
The status of the park assist switch is continually monitored by the circuitry within the upper
instrument panel switch pod. The switch pod receives battery voltage at all times on a fused battery
feed circuit, and a path to ground at all times through the instrument panel wire harness. The inputs
to and outputs from the switch pod consist of electronic communication with the instrument cluster,
also known as the Cab Compartment Node (CCN) over the single wire Local Interface Network
(LIN) data bus.
Each time the park assist switch push button is depressed the switch pod circuitry sends an
electronic park assist switch status message input to the CCN over the LIN data bus. The CCN
then sends an electronic park assist switch request message to the park assist module over the
Controller Area Network (CAN) data bus. The park assist module responds to each park assist
switch request message by toggling the status of the park assist system from enabled to disabled,
or from disabled to enabled, then sends an electronic park assist system status message back to
the CCN over the CAN data bus as confirmation.
The CCN responds to the system status message by sending a message to the switch pod over
the LIN data bus to control the park assist switch Light Emitting Diode (LED) unit so that the LED is
illuminated with the system disabled and the ignition switch in the ON or START positions, and is
extinguished with the system enabled or with the ignition switch in any position except ON or
START.
The hard wired circuits between components related to the park assist switch may be diagnosed
using conventional diagnostic tools and procedures. Refer to the appropriate wiring information.
However, conventional diagnostic methods will not prove conclusive in the diagnosis of the
electronic controls or communication between modules and other devices that provide some
features of the park assist system. The most reliable, efficient, and accurate means to diagnose the
park assist switch or the electronic controls and communication related to park assist switch
operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic
information.
Page 441
Repair/Rear Bumper Fascia - Removal.
3. From the back of the fascia, disconnect the wire harness connector from the park assist sensor
connector receptacle (1). 4. If only the sensor or the sensor spacer are being replaced, carefully
pry the sensor bracket latch features (2) away from the top and bottom tabs of
the sensor far enough to disengage the sensor from the bracket.
5. If the sensor bracket (1) is being replaced, carefully pry the fascia molding latch features away
from the top and bottom tabs of the sensor bracket
far enough to disengage the sensor and bracket from the fascia as a unit.
6. If the sensor bracket is being replaced, carefully pry the sensor bracket latch features away from
the top and bottom tabs of the sensor (3) far
enough to disengage the sensor from the bracket.
7. If the sensor or the sensor spacer (2) are being replaced, disengage the O-ring spacer from
around the circumference of the sensor membrane
protrusion.
High and Low Wiper Relay - Description
Wiper Relay: Description and Operation High and Low Wiper Relay - Description
DESCRIPTION
The wiper high/low relay (1) is a conventional International Standards Organization (ISO) micro
relay. Relays conforming to the ISO specifications have common physical dimensions, current
capacities, terminal patterns (2), and terminal functions. This relay is contained within a small,
rectangular, molded plastic housing and is connected to all of the required inputs and outputs
through five integral male spade-type terminals that extend from the relay base plate.
The wiper high/low relay is located in the Integrated Power Module (IPM) in the engine
compartment, near the battery. Refer to the layout label on the underside of the IPM cover for
specific relay cavity assignment information. The wiper high/low relay cannot be adjusted or
repaired and, if ineffective or damaged, the unit must be replaced.
Keyless Systems - Intermittently Inoperative
Power Distribution Module: Customer Interest Keyless Systems - Intermittently Inoperative
NUMBER: 08-010-10
GROUP: Electrical
DATE: May 14, 2010
THE wiTECH DIAGNOSTIC APPLICATION IS THE PREFERRED METHOD FOR FLASHING
ECUs.
HELP USING THE wiTECH DIAGNOSTIC APPLICATION FOR FLASHING AN ECU IS
AVAILABLE BY SELECTING "HELP" THEN "HELP CONTENTS" AT THE TOP OF THE wiTECH
DIAGNOSTIC APPLICATION WINDOW.
THE wiTECH SOFTWARE LEVEL MUST BE AT RELEASE 10.04 OR HIGHER TO PERFORM
THIS PROCEDURE.
StarMOBILE DESKTOP CLIENT MAY ALSO BE USED TO PERFORM THIS PROCEDURE.
SUBJECT: Flash: WIN Module For Intermittent RKE Functions
OVERVIEW: This bulletin involves flash reprogramming the Wireless Ignition Node (WIN) with new
software.
MODELS:
2010 (DS) Ram Truck 1500
2010 (JC) Journey
2010 (LC) Challenger
2010 (LE) International 300 or Charger
2010 (LX) 300 and/or Charger
2010 (WK) Grand Cherokee
2010 (WH) International Grand Cherokee
2010 (XK) Commander
2010 (XH) International Commander
SYMPTOM/CONDITION: Customer may experience intermittent FOBIK operating characteristics.
Dealers are required to verify the manufacturer of the Wireless Ignition Node Module (WIN) and if
necessary, Flash the WIN with updated software.
DIAGNOSIS: If the vehicle operator describes the above Symptom/Condition, perform the Repair
Procedure.
REPAIR PROCEDURE: Check manufacturer of WIN Module
1. Using the wiTECH Diagnostic Application verify the WIN module is manufactured by Marquardt
2. Click on the reports tab on the top of the main page.
3. Select Run/View Reports.
4. Select ECU Details report.
5. Click on the arrow key to run the report.
6. Scroll to the bottom to find the WIN section.
Front Control Module - Removal
Body Control Module: Service and Repair Front Control Module - Removal
REMOVAL
CAUTION: Front Control Module (FCM) damage may occur if the module case comes in contact
with the battery while still connected.
Always disconnect the battery negative cable prior to removal of the FCM.
1. Disconnect and isolate the battery negative cable. 2. Remove the Integrated Power Module
(IPM) from the engine compartment, See: Power and Ground Distribution/Power Distribution
Module/Service and Repair/Integrated Power Module (IPM) - Removal.
3. Remove the four fasteners (2) securing the Front Control Module (FCM) (1) to the IPM (3). 4.
Separate the FCM from the IPM by pulling the two straight away from each other to disengage the
electrical connector.
Page 30
7. Check the supplier ID. Is the Supplier Marquardt?
a. No>>> Inspection is complete. Please refer to normal diagnostics for the customers concern.
b. Yes>>> Continue with step 8.
8. Now check the software version listed on the same page. Is the WIN software version lower than
10.02.01?
a. No>>> Inspection is complete check for other issues causing customer concern
b. Yes>>> Continue with the repair procedure step 9.
NOTE:
If this flash process is interrupted/aborted, the flash should be restarted.
9. Using the wiTECH Diagnostic Application for flashing a WIN is made available through the
wiTECH Diagnostic Application. For instructions select
the "HELP tab on upper portion of the wiTECH window, then "HELP CONTENTS. This will open
the Welcome to wiTECH Help screen were help topics can now selected.
10. Clear any DTC's that may have been set in other modules due to reprogramming. The wiTECH
application will automatically present all DTCs after
the flash and allow the tech to clear them.
POLICY: Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
FAILURE CODE:
Disclaimer:
This bulletin is supplied as technical information only and is not an authorization for repair.
Page 288
Air Bag Control Module: Description and Operation Occupant Restraint Controller - Operation
OPERATION
The microprocessor in the Occupant Restraint Controller (ORC) contains the Supplemental
Restraint System (SRS) logic circuits and controls all of the SRS components. The ORC uses
On-Board Diagnostics (OBD) and can communicate with other electronic modules in the vehicle as
well as with the diagnostic scan tool using the Controller Area Network (CAN) data bus. This
method of communication is used for control of the airbag indicator in the ElectroMechanical
Instrument Cluster (EMIC) (also known as the Cab Compartment Node/CCN) and for SRS
diagnosis and testing through the 16-way data link connector located on the driver side lower edge
of the instrument panel.
The ORC microprocessor continuously monitors all of the SRS electrical circuits to determine the
system readiness. If the ORC detects a monitored system fault, it sets an active and stored
Diagnostic Trouble Code (DTC) and sends electronic messages to the EMIC over the CAN data
bus to turn ON the airbag indicator. An active fault only remains for the duration of the fault, or in
some cases for the duration of the current ignition switch cycle, while a stored fault causes a DTC
to be stored in memory by the ORC. For some DTCs, if a fault does not recur for a number of
ignition cycles, the ORC will automatically erase the stored DTC. For other internal faults, the
stored DTC is latched forever.
The ORC receives battery current through two circuits; a fused ignition switch output (run) circuit
through a fuse in the Junction Block (JB), and a fused ignition switch output (run-start) circuit
through a second fuse in the JB. The ORC receives ground through a ground circuit and take out of
the instrument panel wire harness. This take out has a single eyelet terminal connector that is
secured by a ground screw near the center of the instrument panel structural support. These
connections allow the ORC to be operational whenever the ignition switch is in the START or ON
positions.
The ORC also contains an energy-storage capacitor. When the ignition switch is in the START or
ON positions, this capacitor is continually being charged with enough electrical energy to deploy
the SRS components for up to one second following a battery disconnect or failure. The purpose of
the capacitor is to provide backup SRS protection in case there is a loss of battery current supply to
the ORC during an impact.
Various sensors within the ORC are continuously monitored by the ORC logic. These internal
sensors, along with several external impact sensor inputs allow the ORC to determine both the
severity of an impact and to verify the necessity for deployment of any SRS components. Two
remote front impact sensors are located on the back of the right and left vertical members of the
radiator support near the front of the vehicle. The electronic impact sensors are accelerometers
that sense the rate of vehicle deceleration, which provides verification of the direction and severity
of an impact.
For the driver side front airbag, additional programming and a logic input from the seat track
position sensor aid the ORC in determining the force level with which to deploy the driver airbag.
The ORC also monitors inputs from an internal rollover sensor and four additional remote impact
sensors located on the left and right inner B-pillars and C-pillars to control deployment of the side
curtain airbag units.
The impact sensors within the ORC are electronic accelerometer sensors that provide additional
logic inputs to the ORC microprocessor. These sensors are used to verify the need for a SRS
deployment by also detecting impact energy of a lesser magnitude than that of the primary
electronic impact sensors, and must exceed a safing threshold in order for the SRS components to
deploy. A separate impact sensor within the ORC provides confirmation to the ORC
microprocessor of side impact forces. This separate sensor is a bi-directional unit that detects
impact forces from either side of the vehicle.
Pre-programmed decision algorithms in the ORC microprocessor determine when the deceleration
rate as signaled by the impact sensors indicate an impact that is severe enough to require SRS
protection and, based upon the severity of the monitored impact, determines the level of front
airbag deployment force required for each front seating position. When the programmed conditions
are met, the ORC sends the proper electrical signals to deploy the dual multistage front airbags at
the programmed force levels, the front seat belt tensioners and either side curtain airbag unit.
The hard wired inputs and outputs for the ORC may be diagnosed using conventional diagnostic
tools and procedures. Refer to the appropriate wiring information. However, conventional
diagnostic methods will not prove conclusive in the diagnosis of the ORC or the electronic controls
or communication between other modules and devices that provide features of the SRS. The most
reliable, efficient, and accurate means to diagnose the ORC or the electronic controls and
communication related to ORC operation requires the use of a diagnostic scan tool. Refer to the
appropriate diagnostic information.
Keyless Systems - Intermittently Inoperative
Keyless Entry Module: Customer Interest Keyless Systems - Intermittently Inoperative
NUMBER: 08-010-10
GROUP: Electrical
DATE: May 14, 2010
THE wiTECH DIAGNOSTIC APPLICATION IS THE PREFERRED METHOD FOR FLASHING
ECUs.
HELP USING THE wiTECH DIAGNOSTIC APPLICATION FOR FLASHING AN ECU IS
AVAILABLE BY SELECTING "HELP" THEN "HELP CONTENTS" AT THE TOP OF THE wiTECH
DIAGNOSTIC APPLICATION WINDOW.
THE wiTECH SOFTWARE LEVEL MUST BE AT RELEASE 10.04 OR HIGHER TO PERFORM
THIS PROCEDURE.
StarMOBILE DESKTOP CLIENT MAY ALSO BE USED TO PERFORM THIS PROCEDURE.
SUBJECT: Flash: WIN Module For Intermittent RKE Functions
OVERVIEW: This bulletin involves flash reprogramming the Wireless Ignition Node (WIN) with new
software.
MODELS:
2010 (DS) Ram Truck 1500
2010 (JC) Journey
2010 (LC) Challenger
2010 (LE) International 300 or Charger
2010 (LX) 300 and/or Charger
2010 (WK) Grand Cherokee
2010 (WH) International Grand Cherokee
2010 (XK) Commander
2010 (XH) International Commander
SYMPTOM/CONDITION: Customer may experience intermittent FOBIK operating characteristics.
Dealers are required to verify the manufacturer of the Wireless Ignition Node Module (WIN) and if
necessary, Flash the WIN with updated software.
DIAGNOSIS: If the vehicle operator describes the above Symptom/Condition, perform the Repair
Procedure.
REPAIR PROCEDURE: Check manufacturer of WIN Module
1. Using the wiTECH Diagnostic Application verify the WIN module is manufactured by Marquardt
2. Click on the reports tab on the top of the main page.
3. Select Run/View Reports.
4. Select ECU Details report.
5. Click on the arrow key to run the report.
6. Scroll to the bottom to find the WIN section.
Page 271
Fuel Pump Relay: Description and Operation Operation
OPERATION
The Powertrain Control Module (PCM) energizes the electric fuel pump through the fuel pump
relay. The fuel pump relay is energized by first applying battery voltage to it when the ignition key is
turned ON, and then applying a ground signal to the relay from the PCM.
Whenever the ignition key is turned ON, the electric fuel pump will operate. But, the PCM will
shut-down the ground circuit to the fuel pump relay in approximately 1-3 seconds unless the engine
is operating or the starter motor is engaged.
Page 413
The rear wiper relay is an International Standards Organization (ISO) relay. Relays conforming to
the ISO specifications have common physical dimensions, current capacities, terminal patterns,
and terminal functions. This relay is permanently soldered onto the electronic circuit board of the
Junction Block (JB) (1) located on a bracket (2) underneath the driver side end of the instrument
panel. The relay is connected to all of the required inputs and outputs through five terminals.
The rear wiper relay cannot be adjusted or repaired and, if ineffective or damaged, the entire JB
unit must be replaced.
Rear Wiper Relay - Operation
OPERATION
The rear wiper relay is an electromechanical switch that uses a low current input from the Front
Control Module (FCM) to control a high current output to the rear wiper module. The movable
common feed contact point is held against the fixed normally closed contact point by spring
pressure. When the relay coil is energized, an electromagnetic field is produced by the coil
windings. This electromagnetic field draws the movable relay contact point away from the fixed
normally closed contact point, and holds it against the fixed normally open contact point. When the
relay coil is de-energized, spring pressure returns the movable contact point back against the fixed
normally closed contact point. A resistor is connected in parallel with the relay coil in the relay, and
helps to dissipate voltage spikes and electromagnetic interference that can be generated as the
electromagnetic field of the relay coil collapses.
The rear wiper relay terminals are connected to the vehicle electrical system through soldered
connections to the electronic circuit board of the Junction Block (JB). The inputs and outputs of the
rear wiper relay include:
- Common Feed Terminal - The common feed terminal (30) is connected to battery current from a
fuse in the PDC through a fused B(+) circuit at all times.
Coil Ground Terminal - The coil ground terminal (85) is connected to a control output of the FCM
through a rear wiper relay control circuit. The FCM energizes and de-energizes the rear wiper
module by controlling a ground path through this circuit.
- Coil Battery Terminal - The coil battery terminal (86) is connected to battery current from a fuse in
the PDC through a fused B(+) circuit at all times.
- Normally Open Terminal - The normally open terminal (87) is connected to the rear wiper module
through the rear wiper relay output circuit. When the rear wiper relay is energized, the normally
open terminal of the relay is connected to battery current from a fuse in the Power Distribution
Center (PDC) through a fused B(+) circuit.
- Normally Closed Terminal - The normally closed terminal (87A) is not connected to any circuit in
this application, but provides a battery current output only when the rear wiper relay coil is
de-energized.
The rear wiper relay as well as the hard wired inputs and outputs of the relay may be diagnosed
using conventional diagnostic tools and procedures. Refer to the appropriate wiring information.
Description and Operation
Compressor Clutch Relay: Description and Operation
DESCRIPTION
The A/C clutch relay (1) is an International Standards Organization (ISO) micro-relay. Relays
conforming to the ISO specifications have common physical dimensions, current capacities,
terminal functions and patterns (2). The ISO micro-relay terminal functions are the same as a
conventional ISO relay. However, the ISO micro-relay terminal pattern (or footprint) is different, the
current capacity is lower, and the physical dimensions are smaller than those of the conventional
ISO relay.
The A/C clutch relay is located in the power distribution center (PDC) in the engine compartment.
Page 409
Wiper Relay: Description and Operation ON and OFF Wiper Relay - Description
DESCRIPTION
The wiper on/off relay (1) is a conventional International Standards Organization (ISO) micro relay.
Relays conforming to the ISO specifications have common physical dimensions, current capacities,
terminal patterns (2), and terminal functions. This relay is contained within a small, rectangular,
molded plastic housing and is connected to all of the required inputs and outputs through five
integral male spade-type terminals that extend from the relay base plate.
The wiper on/off relay is located in the Integrated Power Module (IPM) in the engine compartment
near the battery. Refer to the layout label on the underside of the IPM cover for specific relay cavity
assignment information. The wiper on/off relay cannot be adjusted or repaired and, if ineffective or
damaged, the unit must be replaced.
Page 378
4. Disconnect the WIN electrical connector.
5. If equipped, remove the WIN antenna connector.
6. Remove and discard the original WIN from the instrument panel opening.
7. Connect the WIN electrical connector to the new WIN receiver.
8. If equipped, connect the WIN antenna connector to the new WIN receiver.
9. Install the WIN receiver into the instrument panel.
10. Install the four WIN mounting screws and tighten securely (Figure 3).
11. Install the instrument panel knee bolster (Figure 1).
12. Connect the negative battery cable.
13. Continue with Section E. Obtaining Vehicle Personal Identification Number (PIN).
C. (LC/LX) Dodge Challenger/Charger & Chrysler 300 WIN Replacement
1. Disconnect the battery negative cable.
2. Remove the end cap trim panel (Figure 3).
3. Remove the two screws from the knee bolster (Figure 3).
4. Remove the knee bolster cover (Figure 3).
5. Remove the knee bolster steel reinforcement located behind the knee bolster cover.
6. Using a trim stick or equivalent, gently pry along the edge of the trim to remove the instrument
cluster trim (Figure 3).
Page 458
Remote Switch: Testing and Inspection
REMOTE SWITCHES
Any diagnosis of the Audio system should begin with the use of a scan tool and the appropriate
Diagnostic Service information.
Refer to the appropriate wiring information.
WARNING: Disable the airbag system before attempting any steering wheel, steering column, seat
belt tensioner, side airbag or instrument
panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable.
Wait two minutes for the airbag system capacitor to discharge before performing further diagnosis
or service. This is the only sure way to disable the airbag system. Failure to follow these
instructions may result in accidental airbag deployment and possible serious or fatal injury.
1. Remove the remote radio switch(es) (1) and (2) from the steering wheel See: Service and
Repair/Remote Radio Switches - Removal. 2. Use an ohmmeter to check the switch resistances as
shown in the Remote Radio Switch test table. If the remote radio switch resistances are not as
indicated, replace the inoperative switch.
REMOTE RADIO SWITCH TEST
Page 151
Brake Lamp Relay: Description and Operation Stop Lamp Inhibit Relay - Operation
OPERATION
The stop lamp inhibit relay is an electromechanical switch that uses a low current input from the
Controller Antilock Brake (CAB) to interrupt a high current output from the brake lamp switch to the
brake lamps. Within the relay is an electromagnetic coil, a movable contact and two fixed contact
points. A resistor is connected in parallel with the coil, and helps to dissipate voltage spikes and
electromagnetic interference that can be generated as the field of the relay coil collapses.
The movable common supply contact point is held against the fixed normally closed contact point
by spring pressure. When the relay coil is energized, an electromagnetic field is produced by the
coil windings. This field draws the movable contact away from the normally closed contact, and
holds it against the normally open contact. When the relay coil is de-energized, spring pressure
returns the movable contact back against the normally closed contact.
The inputs and outputs of the stop lamp inhibit relay include:
- Common Supply Terminal (30) - The common feed terminal is connected to the output of the
brake lamp switch at all times.
- Coil Ground Terminal (85) - The coil ground terminal is connected to a control output of the CAB
through a stop lamp inhibit relay control circuit. The CAB controls brake lamp operation by
controlling a ground path through this circuit.
- Coil Battery Terminal (86) - The coil battery terminal is connected to a fused ignition switch output
(run-start) circuit at all times.
- Normally Open Terminal (87) - The normally open terminal is not connected to any circuit in this
application, but will have battery voltage present whenever the relay is energized and the brake
lamp switch is closed.
- Normally Closed Terminal (87A) - The normally closed terminal is connected to the brake lamps
through a brake lamp switch output circuit and provides battery voltage to the brake lamps
whenever the relay is de-energized.
The stop lamp inhibit relay as well as the hard wired inputs and outputs of the relay may be
diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring
information.
Headlamp Leveling Module - Removal
Headlamp Alignment Control Module: Service and Repair Headlamp Leveling Module - Removal
REMOVAL
WARNING: To avoid serious or fatal injury when working on the High Intensity Discharge (HID)
headlamp system, be certain to take the
proper precautions. The headlamp switch must be in the OFF position. Disconnect and isolate the
battery negative cable. There is a risk of death caused by contact with high voltage used in the HID
headlamps. There is a risk of explosion or fire caused by highly flammable materials in the vicinity
of damaged HID lighting elements. There is a risk of injury caused by exposure to Ultra Violet (UV)
light, a risk of burns caused by high component operating temperatures, a risk of mercury
poisoning through glass splinters produced by bursting HID lighting elements. There is also a risk
of poisoning caused by inhalation of mercury vapors and by toxic salts and mercury compounds
being ingested or coming into contact with the skin. Do not come into contact with parts that are
under high voltage. Persons with active electronic implants (e.g. heart pacemakers) must never
work on HID headlamps. Wear insulated safety shoes, safety glasses and protective gloves.
Remove flammable materials and ensure sufficient ventilation in the working area.
1. Disconnect and isolate the battery negative cable. 2. Remove the right front lamp unit from the
vehicle. See: Lighting and Horns/Headlamp/Headlamp Bulb/Service and Repair/Front Lamp Unit Removal.
3. From the underside of the right front lamp unit housing (4), remove the four screws (3) that
secure the cover plate (1) and the Automatic Headlamp
Leveling Module (AHLM) (2) to the lamp housing.
4. Pull the AHLM away from the bottom of the right front lamp unit housing far enough to access
and disconnect the front lamp unit wire harness
connector from the connector receptacle on the upward-facing side of the AHLM.
5. Remove the AHLM from the lamp housing.
Component Tests and General Diagnostics
Door Module: Component Tests and General Diagnostics
DOOR MODULES
Any diagnosis of the door modules should begin with the use of a scan tool and the appropriate
Diagnostic information.
Refer to the appropriate wiring information.
Page 408
Wiper Relay: Description and Operation High and Low Wiper Relay - Operation
OPERATION
The wiper high/low relay is an electromechanical switch that uses a low current input from the Front
Control Module (FCM) to control a high current output to the front wiper motor. The movable
common feed contact point is held against the fixed normally closed contact point by spring
pressure. When the relay coil is energized, an electromagnetic field is produced by the coil
windings. This electromagnetic field draws the movable relay contact point away from the fixed
normally closed contact point, and holds it against the fixed normally open contact point. When the
relay coil is de-energized, spring pressure returns the movable contact point back against the fixed
normally closed contact point. A resistor is connected in parallel with the relay coil in the relay, and
helps to dissipate voltage spikes and electromagnetic interference that can be generated as the
electromagnetic field of the relay coil collapses.
The wiper high/low relay terminals are connected to the vehicle electrical system through a
connector receptacle in the Integrated Power Module (IPM). The inputs and outputs of the wiper
high/low relay include:
- Common Feed Terminal - The common feed terminal (30) is connected to the output of the wiper
on/off relay at all times through the wiper on/off relay output circuit.
Coil Ground Terminal - The coil ground terminal (85) is connected to a control output of the FCM
through a wiper high/low relay control circuit. The FCM controls wiper motor operation by
controlling a ground path through this circuit.
- Coil Battery Terminal - The coil battery terminal (86) receives battery current at all times from a
fuse in the IPM through a fused ignition switch output (run-acc) circuit.
- Normally Open Terminal - The normally open terminal (87) is connected to the high speed brush
of the wiper motor through a wiper high/low relay high speed output circuit, and is connected to the
high speed brush whenever the relay is energized.
- Normally Closed Terminal - The normally closed terminal (87A) is connected to the low speed
brush of the wiper motor through a wiper high/low relay low speed output circuit, and is connected
to the low speed brush whenever the relay is de-energized.
The wiper high/low relay as well as the hard wired inputs and outputs of the relay may be
diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring
information.
Starter Relay - Removal
Starter Relay: Service and Repair Starter Relay - Removal
REMOVAL
The starter relay is located in the Power Distribution Center (PDC). Refer to label on PDC cover for
relay location.
1. Disconnect and isolate negative battery cable. 2. Remove cover from Power Distribution Center
(PDC) for relay identification and location. 3. Remove starter relay from PDC. 4. Check condition of
relay terminals and PDC connector terminals for damage or corrosion. Repair if necessary before
installing relay. 5. Check for pin height (pin height should be the same for all terminals within the
PDC connector). Repair if necessary before installing relay.
Page 390
Transmission Control System Relay: Description and Operation Transmission Control Relay Operation
OPERATION
NOTE: Due to different power control configurations, the Transmission Control Relay (if equipped)
may be referred to as a PCM relay.
When the relay is "off", no power is supplied to the solenoid pack and the transmission is in
"limp-in" mode. After a controller reset, the TCM energizes the relay. Prior to this, the TCM verifies
that the contacts are open by checking for no voltage at the switched battery terminals. After this is
verified, the voltage at the solenoid pack pressure switches is checked. After the relay is energized,
the TCM monitors the terminals to verify that the voltage is greater than 3 volts.
Page 343
Control Module: Description and Operation Transmission Control Module - Operation
4.7L/5.7L VEHICLES
The Transmission Control Module (TCM) controls all electronic operations of the transmission. The
TCM receives information regarding vehicle operation from both direct and indirect inputs, and
selects the operational mode of the transmission. Direct inputs are hardwired to, and used
specifically by the TCM. Indirect inputs originate from other components/modules, and are shared
with the TCM via the vehicle communication bus.
Some examples of direct inputs to the TCM are:
- Battery (B+) voltage
- Ignition "ON" voltage
- Transmission Control Relay (Switched B+)
- Throttle Position Sensor
- Crankshaft Position Sensor
- Transmission Range Sensor
- Pressure Switches
- Transmission Temperature Sensor
- Input Shaft Speed Sensor
- Output Shaft Speed Sensor
- Line Pressure Sensor
Some examples of indirect inputs to the TCM are:
- Engine/Body Identification
- Manifold Pressure
- Target Idle
- Torque Reduction Confirmation
- Engine Coolant Temperature
- Ambient/Battery Temperature
- Scan Tool Communication
Based on the information received from these various inputs, the TCM determines the appropriate
shift schedule and shift points, depending on the present operating conditions and driver demand.
This is possible through the control of various direct and indirect outputs.
Some examples of TCM direct outputs are:
- Transmission Control Relay
- Solenoids
- Torque Reduction Request
Some examples of TCM indirect outputs are:
- Transmission Temperature (to PCM)
- PRNDL Position (to BCM)
In addition to monitoring inputs and controlling outputs, the TCM has other important
responsibilities and functions:
- Storing and maintaining Clutch Volume Indexes (CVI)
- Storing and selecting appropriate Shift Schedules
- System self-diagnostics
- Diagnostic capabilities (with scan tool)
NOTE: If the TCM has been replaced, the "Quick Learn Procedure" must be performed. See:
Powertrain Management/Computers and Control
Systems/Testing and Inspection/Programming and Relearning/TCM Quick Learn
BATTERY FEED
A fused, direct battery feed to the TCM is used for continuous power. This battery voltage is
necessary to retain adaptive learn values in the TCM's RAM (Random Access Memory). When the
battery (B+) is disconnected, this memory is lost. When the battery (B+) is restored, this memory
loss is detected by the TCM and a Diagnostic Trouble Code (DTC) is set.
CLUTCH VOLUME INDEXES (CVI)
Anti-Lock Brake System Module - Description
Electronic Brake Control Module: Description and Operation Anti-Lock Brake System Module Description
DESCRIPTION
NOTE: If the ABM module is replaced it must be initialized using the scan tool.
The Antilock Brake Module (ABM) (1) is mounted to the Hydraulic Control Unit (HCU) (2) and
operates the ABS system.
Instrument Cluster Switch Pod - Description
Integrated Accessory Switch Assembly: Description and Operation Instrument Cluster Switch Pod Description
Lower
LOWER
The lower instrument panel switch pod (1) is located just below the heater and air conditioner
controls in the center stack area of the instrument panel. This switch has provisions for up to seven
push button switches, but is presently available in only a single configuration. The lower pod
includes the following switches:
- Driver and Passenger Front Heated Seat (2)
The switch housing and the push buttons are constructed of molded plastic. Each push button has
a smooth finish and is clearly identified with the appropriate text and International Control and
Display Symbol icons. The heated seat push buttons feature Light Emitting Diode (LED) units to
give the vehicle operator an indication when the function of that switch is currently active.
Four screws secure the switch to the back of the instrument panel center bezel through integral
mounting tabs that are molded onto each end of the switch housing. The back of the switch
housing has an integral connector receptacle containing terminal pins that connect the switch to the
vehicle electrical system through a dedicated take out and connector of the instrument panel wire
harness.
Panel lamps dimmer controlled illumination lamps integral to the circuit board within the switch
provide back lighting for visibility at night, but these lamps are not serviceable. The individual
switches in the lower instrument panel switch pod cannot be repaired and are not serviced
individually. If any component within the switch pod is ineffective or damaged, the entire lower
switch pod must be replaced.
Upper
UPPER
The upper instrument panel switch pod (1) is located just above the heater and air conditioner
controls in the center stack area of the instrument panel. This switch is available in multiple
configurations, which vary depending upon the equipment in the vehicle. However, every available
configuration includes the hazard warning push button switch. The upper pod may include the
following switches:
- Alternating Current (AC) Power Inverter Outlet Switch (5)
- Automatic Transmission Tow/Haul Mode Switch (2)
Electronic Stability Program (ESP) Off Switch (7)
- Hazard Warning Switch (3)
- Headlamp Leveling Switch (Not Shown)
- Hill Descent Switch (6)
- Park Assist Switch (Not Shown)
- Park Assist Off Switch (4)
The switch housing and the push buttons are constructed of molded plastic. Each push button has
a smooth finish and is clearly identified with the appropriate text and International Control and
Display Symbol icons. Several of the push buttons feature Light Emitting Diode (LED) units to give
the
Description and Operation
Navigation Module: Description and Operation
DESCRIPTION
The Traffic Message Center module (TMC) provides traffic information to the navigation system to
update planned routes in the event of a traffic accident, construction or any other condition that
causes traffic to be increased. This allows the users to avoid these congested areas and be
automatically rerouted to get to their destination. This option is for export only.
Park Assist Sensor - Removal
Parking Assist Distance Sensor: Service and Repair Park Assist Sensor - Removal
Front
FRONT
NOTE: The park assist sensors (3) and the sensor spacers (2) are each available for separate
service replacement. The sensor brackets (1) are
bonded and integral to the back side of the front bumper fascia (4).
1. Disconnect and isolate the battery negative cable. 2. Remove the bumper fascia from the front of
the vehicle. See: Body and Frame/Bumper/Front Bumper/Front Bumper Cover / Fascia/Service and
Repair/Front Bumper Fascia - Removal.
3. From the back of the fascia (4), disconnect the wire harness connector from the park assist
sensor (3) connector receptacle. 4. Carefully pry the sensor bracket (1) latch features away from
the top and bottom tabs of the sensor far enough to disengage the sensor from the
bracket.
5. Disengage the O-ring spacer (2) from around the circumference of the sensor membrane
protrusion.
Rear
REAR
NOTE: The park assist sensors, the sensor spacers and the sensor brackets are each available for
separate service replacement. The following
service procedure can be used for disassembling any or all of these components from the rear
bumper fascia.
1. Disconnect and isolate the battery negative cable. 2. Remove the bumper fascia from the rear of
the vehicle. See: Body and Frame/Bumper/Rear Bumper/Rear Bumper Cover / Fascia/Service and
Page 203
7. Check the supplier ID. Is the Supplier Marquardt?
a. No>>> Inspection is complete. Please refer to normal diagnostics for the customers concern.
b. Yes>>> Continue with step 8.
8. Now check the software version listed on the same page. Is the WIN software version lower than
10.02.01?
a. No>>> Inspection is complete check for other issues causing customer concern
b. Yes>>> Continue with the repair procedure step 9.
NOTE:
If this flash process is interrupted/aborted, the flash should be restarted.
9. Using the wiTECH Diagnostic Application for flashing a WIN is made available through the
wiTECH Diagnostic Application. For instructions select
the "HELP tab on upper portion of the wiTECH window, then "HELP CONTENTS. This will open
the Welcome to wiTECH Help screen were help topics can now selected.
10. Clear any DTC's that may have been set in other modules due to reprogramming. The wiTECH
application will automatically present all DTCs after
the flash and allow the tech to clear them.
POLICY: Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
FAILURE CODE:
Disclaimer:
This bulletin is supplied as technical information only and is not an authorization for repair.
Occupant Restraint Controller - Removal
Air Bag Control Module: Service and Repair Occupant Restraint Controller - Removal
REMOVAL
WARNING: To avoid serious or fatal injury on vehicles equipped with side curtain airbags, disable
the Supplemental Restraint System (SRS)
before attempting any Occupant Restraint Controller (ORC) diagnosis or service. The ORC
contains a rollover sensor, which enables the system to deploy the side curtains in the event of a
vehicle rollover event. If an ORC is accidentally rolled during service while still connected to battery
power, the side curtain airbags will deploy. Disconnect and isolate the battery negative (ground)
cable, then wait two minutes for the system capacitor to discharge before performing further
diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper
precautions could result in accidental airbag deployment.
WARNING: To avoid serious or fatal injury on vehicles equipped with airbags, disable the
Supplemental Restraint System (SRS) before
attempting any steering wheel, steering column, airbag, seat belt tensioner, impact sensor, or
instrument panel component diagnosis or service. Disconnect and isolate the battery negative
(ground) cable, then wait two minutes for the system capacitor to discharge before performing
further diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper
precautions could result in accidental airbag deployment.
WARNING: To avoid serious or fatal injury, never strike or drop the Occupant Restraint Controller
(ORC), as it can damage the impact
sensor or affect its calibration. The ORC contains the impact sensor, which enables the system to
deploy the Supplemental Restraint System (SRS) components. If an ORC is accidentally dropped
during service, the module must be scrapped and replaced with a new unit. Failure to observe this
warning could result in accidental, incomplete, or improper SRS component deployment.
NOTE: Several different Occupant Restraint Controllers (ORC) are available for this vehicle. For
vehicles equipped with the optional side
curtain airbags, the ORC contains a second bi-directional safing sensor for the side airbags.
1. Disconnect and isolate the battery negative cable. Wait two minutes for the system capacitor to
discharge before further service. 2. Remove the center console from the top of the floor panel
transmission tunnel (1). See: Body and Frame/Interior Moulding / Trim/Console/Service
and Repair/Floor Console - Removal.
3. Disconnect the instrument panel (3) (C2) and body (4) (C1) wire harness connectors from the
Occupant Restraint Controller (ORC) (2) connector
receptacles located on the forward facing side of the module. To disconnect the connectors from
the ORC: a. Slide the red Connector Position Assurance (CPA) lock on the top of the connector
toward the front of the vehicle. b. Depress the edge of the CPA lock closest to the ORC to release
the connector latch tab and pull the connector straight away from the ORC
connector receptacle.
Page 156
Fog/Driving Lamp Relay: Description and Operation Front Fog Lamp Relay - Operation
OPERATION
The front fog lamp relay is an electromechanical switch that uses a low current input from the Front
Control Module (FCM) (located in the Integrated Power Module/IPM) to control a high current
output to the front fog lamps. Within the relay are an electromagnetic coil, a movable contact and
two fixed contact points. A resistor is connected in parallel with the coil, and helps to dissipate
voltage spikes and electromagnetic interference that can be generated as the field of the relay coil
collapses.
The movable common supply contact point is held against the fixed normally closed contact point
by spring pressure. When the relay coil is energized, an electromagnetic field is produced by the
coil windings. This field draws the movable contact away from the normally closed contact, and
holds it against the normally open contact. When the relay coil is de-energized, spring pressure
returns the movable contact back against the normally closed contact.
The inputs and outputs of the front fog lamp relay include:
- Common Supply Terminal (30) - The common feed terminal is connected to a fused B(+) circuit at
all times.
- Coil Ground Terminal (85) - The coil ground terminal is connected to a control output of the FCM
through a front fog lamp relay control circuit. The FCM controls front fog lamp operation by
controlling a ground path through this circuit.
- Coil Battery Terminal (86) - The coil battery terminal is connected to a fused B(+) circuit at all
times.
- Normally Open Terminal (87) - The normally open terminal is connected to the front fog lamps
through a front fog lamp relay output circuit and provides battery voltage to the front fog lamps
whenever the relay is energized.
- Normally Closed Terminal (87A) - The normally closed terminal is not connected to any circuit in
this application, but will have battery voltage present whenever the relay is de-energized.
The front fog lamp relay as well as the hard wired inputs and outputs of the relay may be
diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring
information.
Page 248
CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will
damage the PCM terminals resulting in
poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis.
2. Using a 12 volt test light connected to Ground, check the PCM Fused B+ circuits. 3. Wiggle test
each circuit during the test to check for an intermittent open in the circuit.
NOTE: The test light should be illuminated and bright with the ignition on and not illuminated with
the ignition off. Compare the brightness
to that of a direct connection to the battery.
Is the test light illuminated as described above?
Yes
- Test complete.
No
- Repair the open or short to ground in the PCM Fused B+ circuit(s) for as necessary.
- Perform the POWERTRAIN VERIFICATION TEST. See: Powertrain Management/Computers and
Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated
Procedures/Verification Tests/Powertrain Verification Test.
Page 209
5. Using a suitable flat bladed tool, depress the three retaining clips and lift the IPM (1) straight up
off of the bracket tabs (2). 6. Disconnect the two IPM connectors (4). 7. Disconnect the two Front
Control Module (FCM) connectors (5). 8. Remove the IPM assembly from the vehicle.
Recall - Wireless Ignition Node Receiver
Technical Service Bulletin # K08 Date: 100816
Recall - Wireless Ignition Node Receiver
August 2010
Dealer Service Instructions for:
Safety Recall K08 Wireless Ignition Node Receiver
Models
2010 (DS) Ram Truck (1500 Series)
NOTE:
This recall applies only to the above vehicles built at Warren Truck Assembly Plant ("S" in the 11th
VIN Position) equipped with an automatic transmission (sales codes DGQ, DGV or DF9) from
January 11, 2010 through February 4, 2010 (MDH 011106 through 020411).
2010 (DS) Ram Truck (1500 Series) (DJ) Ram Truck (2500 Series) (D2) Ram Truck (3500 Series)
NOTE:
This recall applies only to the above vehicles built at Saltillo Assembly Plant ("G" in the 11th VIN
Position) equipped with an automatic transmission (sales codes DGQ, DGV, DG7 or DF9) from
January 6, 2010 through February 16, 2010 (MDH 010606 through 021616).
2010 (LC) Dodge Challenger (LX) Chrysler 300
NOTE:
This recall applies only to the above vehicles equipped with an automatic transmission (sales
codes DGJ or DGV) built from January 18, 2010 through March 11, 2010 (MDH 011807 through
031113).
2010 (WK) Jeep(R) Cherokee (XK) Jeep(R) Commander
NOTE:
This recall applies only to the above vehicles equipped with an automatic transmission (sales
codes DGJ or DGQ) built from January 8, 2010 through February 13, 2010 (MDH 010804 through
021307).
IMPORTANT:
Many of the vehicles within the above build period have already been inspected or repaired and,
therefore, have been excluded from this recall.
IMPORTANT:
Some of the involved vehicles may be in dealer new vehicle inventory. Federal law requires you to
complete this recall service on these vehicles before retail delivery. Dealers should also consider
this requirement to apply to used vehicle inventory and should perform this recall on vehicles in for
service. Involved vehicles can be determined by using the VIP inquiry process.
Subject
The Wireless Ignition Node (WIN) receiver on about 37,000 of the above vehicles may experience
a condition where the Frequency Operated Button Integrated Key (FOBIK) may be removed prior
to placing the automatic transmission gear shift lever in the "PARK" position. This could result in
unintended vehicle movement and cause a crash without warning.
Repair
The Wireless Ignition Node receiver must be inspected and replaced if necessary. The new WIN
must be programmed and all FOBIK transponders must be programmed so they are able to
interface with the new WIN receiver. Vehicles equipped with a premium Tire Pressure Monitoring
(TPM) system (sales code XGM) must also have the spare tire pressure sensor identification
number and location programmed into the new WIN receiver.
NOTE:
Be sure to ask the customer to bring in all FOBIK transponders for the vehicle. At least two FOBIK
transponders must be programmed before the vehicle can be operated.
Blower Motor Relay - Removal
Blower Motor Relay: Service and Repair Blower Motor Relay - Removal
REMOVAL
NOTE: LHD gasoline model shown. Diesel and RHD models similar.
1. Disconnect and isolate the negative battery cable. 2. Open the cover of the power distribution
center (PDC) (1) located in the engine compartment. 3. Remove the blower motor relay (2) from
the power distribution center.
Remote Radio Switches - Removal
Remote Switch: Service and Repair Remote Radio Switches - Removal
REMOVAL
WARNING: Disable the airbag system before attempting any steering wheel, steering column, seat
belt tensioner, side airbag or instrument
panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable.
Wait two minutes for the airbag system capacitor to discharge before performing further diagnosis
or service. This is the only sure way to disable the airbag system. Failure to follow these
instructions may result in accidental airbag deployment and possible serious or fatal injury.
1. Disconnect and isolate the battery negative cable. 2. Remove the driver side airbag (5) from the
steering wheel (1). See: Restraint Systems/Air Bag Systems/Air Bag/Service and Repair/Driver Air
Bag - Removal.
3. Remove the speed control switch (3) or (6) located on the same side of the steering wheel as the
remote radio switch that is being serviced. See:
Sensors and Switches - Cruise Control/Cruise Control Switch/Service and Repair/Speed Control
Switch - Removal.
4. Disconnect the steering wheel wire harness connector from the connector receptacle of the
remote radio switch. 5. Disengage the four remote radio switch latches that secure the switch to the
inside of the mounting hole in the steering wheel rear trim cover. 6. From the outside of the steering
wheel rear trim cover, remove the remote radio switch (2) from the trim cover.
Page 210
Power Distribution Module: Service and Repair Integrated Power Module (IPM) - Installation
INSTALLATION
NOTE: If replacing the Integrated Power Module (IPM) (1) with a new assembly it will be necessary
to transfer the circuit protection devices
as well as the Front Control Module to the new IPM.
1. Position the IPM into the vehicle. 2. Connect the two Front Control Module (FCM) connectors
(5). 3. Connect the two IPM connectors (4). 4. Position the IPM over the three bracket tabs (2) and
apply downward pressure until the retaining clips snap into place securely.
5. Install the battery positive cable (3) to the IPM B+ terminal stud. 6. Install the nut (2) to the IPM
B+ terminal stud. Tighten the nut to 11.5 Nm (105 in. lbs.). 7. Close the IPM cover ensuring the
locking tabs snap firmly in place. 8. Connect the battery negative cable.
Procedures
Control Module: Procedures
TCM Quick Learn
QUICK LEARN - 4.7L/5.7L VEHICLES
The quick learn procedure requires the use of the scan tool.
This program allows the electronic transmission system to re-calibrate itself. This will provide the
proper transmission operation. The quick learn procedure should be performed if any of the
following procedures are performed:
- Transmission Assembly Replacement
- Transmission Control Module Replacement
- Solenoid Pack Replacement
- Clutch Plate and/or Seal Replacement
- Valve Body Replacement or Recondition
To perform the Quick Learn Procedure, the following conditions must be met:
- The brakes must be applied
- The engine speed must be above 500 rpm
- The throttle angle (TPS) must be less than 3 degrees
- The shift lever position must stay in PARK until prompted to shift to overdrive
- The shift lever position must stay in overdrive after the Shift to Overdrive prompt until the scan
tool indicates the procedure is complete
- The calculated oil temperature must be above 15.5° C (60° F) and below 93° C (200° F)
TCM Drive Learn
DRIVE LEARN - 4.7L/5.7L VEHICLES
When a transmission is repaired and a Quick Learn procedure has been performed on the
Transmission Control Module (TCM), the following Drive Learn procedure can be performed to fine
tune any shifts which are particularly objectionable.
NOTE: It is not necessary to perform the complete Drive Learn procedure every time the TCM is
Quick Learned. Perform only the portions
which target the objectionable shift.
LEARN A SMOOTH 1ST NEUTRAL TO DRIVE SHIFT
Perform this procedure only if the complaint is for a delayed or harsh shift the first time the
transmission is put into gear after the vehicle is allowed to set with the engine not running for at
least 10 minutes. Use the following steps to have the TCM learn the 1st N-D UD CVI.
NOTE: The transmission oil temperature must be between 27-43° C (80-110° F).
1. Start the engine only when the engine and ignition have been off for at least ten (10) minutes. 2.
With the vehicle at a stop and the service brake applied, record the 1st N-D UD CVI while
performing a Neutral to Drive shift. The 1st N-D UD
CVI accounts for air entrapment in the UD clutch that may occur after the engine has been off for a
period of time.
3. Repeat 1 and 2 until the recorded 1st N-D UD CVI value stabilizes.
NOTE: It is important that this procedure be performed when the transmission temperature is
between 27-43° C (80-110° F). If this
procedure takes too long to complete fully for the allowed transmission oil temperature, the vehicle
may be returned to the customer with an explanation that the shift will improve daily during normal
vehicle usage. The TCM also learns at higher oil temperatures, but these values (line pressure
correction values) are not available for viewing on the scan tool.
LEARN A SMOOTH NEUTRAL TO DRIVE GARAGE SHIFT
Perform this procedure if the complaint is for a delayed or harsh shift when the transmission is put
into gear after the vehicle has had its first shift. Use the following steps to have the TCM learn the
Norm N-D UD CVI.
NOTE: The transmission oil temperature must be between 27-43° C (80-110° F) to learn the UD
CVI. Additional learning occurs at
temperatures as low as -18° C (0° F) and as high as 93° C (200° F). This procedure may be
performed at any temperature that experiences poor shift quality. Although the UD CVI may not
change, shift quality should improve.
1. Start the vehicle engine and shift to drive. 2. Move the vehicle forward to a speed of at least 16
km/h (10 MPH) and come to a stop. This ensures no air is present in the UD hydraulic circuit.
Page 325
Steering Mounted Controls Communication Module: Testing and Inspection
STEERING CONTROL MODULE
WARNING: To avoid serious or fatal injury on vehicles equipped with airbags, disable the
Supplemental Restraint System (SRS) before
attempting any steering wheel, steering column, airbag, seat belt tensioner, impact sensor, or
instrument panel component diagnosis or service. Disconnect and isolate the battery negative
(ground) cable, then wait two minutes for the system capacitor to discharge before performing
further diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper
precautions could result in accidental airbag deployment.
The hard wired circuits between components related to the Steering Control Module (SCM) may be
diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring
information. The wiring information includes wiring diagrams, proper wire and connector repair
procedures, details of wire harness routing and retention, connector pin-out information and
location views for the various wire harness connectors, splices and grounds.
However, conventional diagnostic methods will not prove conclusive in the diagnosis of the SCM or
the electronic controls or communication between modules and other devices that provide some
features of the SCM. The most reliable, efficient, and accurate means to diagnose the SCM or the
electronic controls and communication related to SCM operation requires the use of a diagnostic
scan tool. Refer to the appropriate diagnostic information.
Page 383
a. Turn on the 9936 TPM-RKE analyzer.
b. If required, place the indicator arrow on the left side of the screen next to "New Session" using
the Up and Down keys. Then press the "Select"
button.
d. If already at the main menu, select "TPM Functions."
e. Select the 2010 model year.
f. Choose the correct body style.
g. Select "Read Sensor."
h. Place the tip of the sensor reader against the tire sidewall near the valve stem (Figure 9).
i. Push the "Test" button.
j. Hold the tip of the sensor reader against the tire until the "Pass" light illuminates.
k. Write down the pressure sensor ID number displayed on the TPMRKE analyzer screen for future
reference.
2. Use the following procedure to program the spare tire pressure sensor to the WIN module:
a. Connect the wiTECH VCI pod to the vehicle data link connector.
b. Open the wiTECH Diagnostic Application.
c. Starting at the "Vehicle View" screen, select "WCM".
d. Select the "Misc. Functions" tab.
e. Select "Program Spare Tire Sensor ID" from the list.
f. Follow the screen prompts to program the spare tire pressure sensor and WIN.
g. After the programming is complete, clear all DTC's.
h. Disconnect and remove the wiTECH VCI pod, remove the battery charger and return the vehicle
to the customer.
I. Calibrate Door Module (LX/LC)
1. Turn the ignition to the "Run" position.
2. Regardless of current window position, move the driver side front window upward until the
window stalls in the full up position. Allow the window
motor to stall for at least 2 seconds before releasing the window switch.
3. Move the driver side front window downward until the window stalls in the full down position.
Allow the window motor to stall for at least 2 seconds
Description and Operation
Heated Glass Element Relay: Description and Operation
DESCRIPTION
The rear window defogger (EBL) relay (1) is an International Standards Organization (ISO)-type
relay. Relays conforming to the ISO specifications have common physical dimensions, current
capacities, terminal functions and patterns (2). The EBL relay is a electromechanical device that
switches fused battery current to the rear window defogger grid and when equipped, switches
fused battery current through a fuse in the junction block (JB) to the outside rear view mirror
heating grids. The EBL relay is energized when the relay coil is provided a ground path by the
control circuitry within the A/C-heater control.
The EBL relay is located in the JB inside the vehicle.
Page 412
DESCRIPTION
The wiper on/off relay (1) is a conventional International Standards Organization (ISO) micro relay.
Relays conforming to the ISO specifications have common physical dimensions, current capacities,
terminal patterns (2), and terminal functions. This relay is contained within a small, rectangular,
molded plastic housing and is connected to all of the required inputs and outputs through five
integral male spade-type terminals that extend from the relay base plate.
The wiper on/off relay is located in the Integrated Power Module (IPM) in the engine compartment
near the battery. Refer to the layout label on the underside of the IPM cover for specific relay cavity
assignment information. The wiper on/off relay cannot be adjusted or repaired and, if ineffective or
damaged, the unit must be replaced.
ON and OFF Wiper Relay - Operation
OPERATION
The wiper on/off relay is an electromechanical switch that uses a low current input from the Front
Control Module (FCM) to control a high current output to the wiper motor. The movable common
feed contact point is held against the fixed normally closed contact point by spring pressure. When
the relay coil is energized, an electromagnetic field is produced by the coil windings. This
electromagnetic field draws the movable relay contact point away from the fixed normally closed
contact point, and holds it against the fixed normally open contact point. When the relay coil is
de-energized, spring pressure returns the movable contact point back against the fixed normally
closed contact point. A resistor is connected in parallel with the relay coil in the relay, and helps to
dissipate voltage spikes and electromagnetic interference that can be generated as the
electromagnetic field of the relay coil collapses.
The wiper on/off relay terminals are connected to the vehicle electrical system through a connector
receptacle in the Integrated Power Module (IPM). The inputs and outputs of the wiper on/off relay
include:
- Common Feed Terminal - The common feed terminal (30) is connected to the common feed
terminal of the wiper high/low relay at all times through the wiper on/off relay output circuit.
- Coil Ground Terminal - The coil ground terminal (85) is connected to a control output of the FCM
through a wiper on/off relay control circuit. The FCM controls wiper motor operation by controlling a
ground path through this circuit.
- Coil Battery Terminal - The coil battery terminal (86) receives battery current at all times from a
fuse in the IPM through a fused ignition switch output (run-acc) circuit.
- Normally Open Terminal - The normally open terminal (87) receives battery current at all times
from a fuse in the IPM through a fused ignition switch output (run-acc) circuit, and provides battery
current to the wiper on/off relay output circuit whenever the relay is energized.
- Normally Closed Terminal - The normally closed terminal (87A) is connected to ground at all
times through a take out of the headlamp and dash wire harness with an eyelet terminal connector
that is secured by a screw to the front end sheet metal, and is connected to the wiper on/off relay
output circuit whenever the relay is de-energized.
The wiper on/off relay as well as the hard wired inputs and outputs of the relay may be diagnosed
using conventional diagnostic tools and procedures. Refer to the appropriate wiring information.
Rear Wiper Relay - Description
DESCRIPTION
Page 251
3. Perform repeated N-D shifts at a stop while pausing in Neutral for at least 2-3 seconds and
monitor Norm N-D UD CVI volume until the value
stabilizes. The value will change during the N-D shift. This is normal since the UD value is different
for the N-D shift then the normal value shown which is used for 4-3 coastdown and kick downs.
Perform repeated shifts in this temperature range until the Norm N-D UD CVI value stabilizes and
the N-D shifts become smooth.
LEARN THE 1ST 2-3 SHIFT AFTER A RESTART OR SHIFT TO REVERSE
Use the following steps to have the TCM learn the 1st 2-3 shift OD CVI.
NOTE: The transmission oil temperature must be above 27° C (80° F).
1. With the vehicle engine running, select reverse gear for over 2 seconds. 2. Shift the transmission
to Drive and accelerate the vehicle from a stop at a steady 15 degree throttle opening and perform
a 2-3 shift while noting
the 1st 2-3 OD CVI.
3. Repeat 1 and 2 until the 1st 2-3 upshift becomes smooth and the 1st 2-3 OD CVI stabilizes.
LEARN A SMOOTH 2-3 AND 3-4 UPSHIFT
NOTE: The transmission oil temperature must be above 43° C (110° F).
Use the following steps to have the TCM learn the OD and 4C CVI's.
1. Accelerate the vehicle from a stop at a steady 15 degree throttle opening and perform multiple
1-2, 2-3, and 3-4 upshifts. The 2nd 2-3 shift
following a restart or shift to reverse will be shown during the shift as a value between the 1st 2-3
OD CVI and the normal OD CVI. Updates to the normal OD CVI will occur after the 2nd shift into
3rd gear, following a restart or shift to reverse.
2. Repeat 1 until the 2-3 and 3-4 shifts become smooth and the OD and 4C CVI become stable.
LEARN A SMOOTH 4-3 COASTDOWN AND PART THROTTLE 4-3 KICKDOWN
NOTE: The transmission oil temperature must be above 43° C (110° F).
Use the following steps to have the TCM learn the UD shift volume.
1. At a vehicle speed between 64-97 km/h (40-60 MPH), perform repeated 4-3 kickdown shifts. 2.
Repeat 1 until the UD volume becomes somewhat stable and the shift becomes smooth.
LEARN A SMOOTH 1-2 UPSHIFT AND 3-2 KICKDOWN
Use the following steps to have the TCM learn the 2C shift volume.
NOTE: The transmission oil temperature must be above 43° C (110° F).
1. With a vehicle speed below 48 km/h (30 MPH) and the transmission in 3rd gear, perform multiple
3-2 kick downs. 2. Repeat 1 until the 3-2 kick downs become smooth and the 2C CVI becomes
stable.
LEARN A SMOOTH MANUAL 2-1 PULLDOWN SHIFT AS WELL AS A NEUTRAL TO REVERSE
SHIFT
NOTE: The transmission oil temperature must be above 43° C (110° F).
Use the following steps to have the TCM learn the LR volume.
1. With the vehicle speed around 40-48 km/h (25-30 MPH) in Manual 2nd, perform manual
pulldowns to Low or 1st gear at closed throttle. 2. Repeat 1 until the LR CVI becomes stable and
the manual 2-1 becomes smooth.
LEARN A SMOOTH NEUTRAL TO REVERSE SHIFT
NOTE: The transmission oil temperature must be above 43° C (110° F).
1. With the vehicle at a stop, perform Neutral to Reverse shifts until the shift is smooth. An
unlearned Neutral to Reverse shift may be harsh or
exhibit a double bump.
2. If any of the shifts are still not smooth after the clutch volume stabilizes, an internal transmission
problem may be present.
LEARN A SMOOTH 4-5 UPSHIFT
NOTE: The transmission oil temperature must be above 43° C (110° F).
Page 50
Parking Assist Control Module: Service and Repair Park Assist Module - Installation
INSTALLATION
1. Position the park assist module (3) to the mounting plate (4) and insert the two mounting tabs on
the outboard side of the module into the slots in
the plate.
2. Slide the module toward the outboard side of the mounting plate, then push downward on the
module until the two latch features integral to the
inboard side of the plate are fully engaged over the mounting tabs on the inboard (connector) side
of the module.
3. Reconnect the underbody wire harness connector (2) to the module connector receptacle.
Vehicles with the front park assist option will have a
second connection to the module at this location, which must also be reconnected.
4. Reinstall the rear seat cushion onto the rear floor panel (1). See: Body and Frame/Seats/Seat
Cover/Service and Repair/Seat Cushion Cover -
Installation.
5. Reconnect the battery negative cable.
Page 291
4. Remove the three screws (2) that secure the ORC (3) to the ORC mount welded onto the top of
the floor panel transmission tunnel (1). 5. Remove the ORC from the ORC mount.
Page 243
- Ignition coil(s)
- Certain relays/solenoids
- Certain sensors
Sensor Return
SENSOR RETURN
The Sensor Return circuits are internal to the Powertrain Control Module (PCM).
Sensor Return provides a low-noise ground reference for all engine control system sensors. For
more information, . See:
Signal Ground
SIGNAL GROUND
Signal ground provides a low noise ground to the data link connector.
Page 274
Fuel Pump Relay: Service and Repair Installation
INSTALLATION
The fuel pump relay is located in the Power Distribution Center (PDC). Refer to label on power
distribution center cover for relay location.
1. Install relay to power distribution center. 2. Install cover to power distribution center.
Page 36
7. Check the supplier ID. Is the Supplier Marquardt?
a. No>>> Inspection is complete. Please refer to normal diagnostics for the customers concern.
b. Yes>>> Continue with step 8.
8. Now check the software version listed on the same page. Is the WIN software version lower than
10.02.01?
a. No>>> Inspection is complete check for other issues causing customer concern
b. Yes>>> Continue with the repair procedure step 9.
NOTE:
If this flash process is interrupted/aborted, the flash should be restarted.
9. Using the wiTECH Diagnostic Application for flashing a WIN is made available through the
wiTECH Diagnostic Application. For instructions select
the "HELP tab on upper portion of the wiTECH window, then "HELP CONTENTS. This will open
the Welcome to wiTECH Help screen were help topics can now selected.
10. Clear any DTC's that may have been set in other modules due to reprogramming. The wiTECH
application will automatically present all DTCs after
the flash and allow the tech to clear them.
POLICY: Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
FAILURE CODE:
Disclaimer:
This bulletin is supplied as technical information only and is not an authorization for repair.
Page 252
Use the following steps to have the TCM learn the Alt 2C CVI.
1. Accelerate the vehicle through 88 km/h (55 mph) at a steady 10-15 degree throttle opening and
perform multiple 4-5 upshifts. 2. Repeat 1 until the 4-5 shift become smooth and the Alt 2C CVI
become stable. There is a separate 2C volume used and learned for 4-5 shifts,
2CA. It is independent of the 2C CVI learned on 3-2 kick downs.
Flash Programming
FLASH PROGRAMMING
NOTE: The wiTECH diagnostic application is the preferred method for flashing ECUs.
NOTE: Help using the wiTECH diagnostic application for flashing an ECU is available by selecting
"Help" then "Help Contents" at the top
of the wiTECH diagnostic application window.
NOTE: The wiTECH software level must be at the latest release to perform this procedure.
NOTE: The StarMobile Desktop Client may also be used to perform this flash procedure.
Module/Programming Order Replacement Guide
MODULE/PROGRAMMING ORDER REPLACEMENT GUIDE
Match the module row with the condition that applies, after module replacement follow the chart
down and program the modules in the chart order.
Module Programming
MODULE PROGRAMMING
The Wireless Ignition Node (WIN) controls the Vehicle Theft Security System (VTSS), Remote
Keyless Entry (RKE). When a Powertrain Control Module (PCM) is in need of replacement, perform
the following steps in order:
NOTE: The PCM and the WIN should never be replaced at the same time. They should be
replaced independently of each other.
1. If applicable, first replace the PCM with the original WIN still connected to the vehicle. 2. Using a
scan tool program the new PCM. (This will ensure the transfer of the Secret Key data from the
original WIN into the new PCM). 3. Replace the WIN, using the scan tool program the new WIN
module. This will transfer the Secret Key data from the PCM into the new WIN. 4. With the scan
tool reprogram the key FOBIK to the new WIN. 5. Ensure all the customer's keys have been
programmed to the new module.
NOTE: If the original keys do not successfully program to the new WIN after the proper procedures
are followed correctly, programming
new keys will be necessary.
PROGRAMMING THE SECRET KEY TO THE WIN
Page 437
A resilient O-ring spacer around the circumference of the membrane isolates the membrane from
the openings in the fascia or the fascia molding. Each sensor is snapped into its own dedicated
molded plastic mounting bracket. Each rear mounting bracket has integral mounting tabs that snap
into openings in the horizontal tabs of the molding that extend through slots to the back side of the
rear fascia. The front mounting brackets are heat-staked to the back side of the front fascia.
The park assist sensors cannot be adjusted or repaired. If ineffective or damaged they must be
replaced. The sensors, the spacers and the four rear sensor mounting brackets are each available
for individual service replacement.
Heated Seat Module - Removal
Seat Heater Control Module: Service and Repair Heated Seat Module - Removal
REMOVAL
CAUTION: The Heated Seat Module mounting tabs can be damaged during module removal and
installation. Use care to properly align tabs
to prevent binding that could result in tab breakage.
1. Position the right front seat to the full rearward position. 2. Disconnect and isolate the battery
negative cable. 3. Disconnect the wire harness connector (2) from the heated seat module (3). 4.
Unsnap the heated seat module retaining clips from the mounting bracket (4). 5. Remove the
heated seat module (3) from the vehicle.
Page 363
7. Remove the four WIN mounting screws (Figure 4).
8. Remove the WIN from the rear of the instrument panel bringing it through the opening below the
steering column and disconnect the electrical
connector from the WIN.
9. Connect the electrical connector to the new WIN and position it back into the instrument panel.
10. Install the four WIN mounting screws through the instrument panel into the WIN and tighten
securely (Figure 4).
11. Install the instrument cluster trim cover. Ensuring that the cover snaps into the securing clips.
12. Install the knee bolster steel reinforcement.
13. Install the knee bolster cover (Figure 3).
14. Install the two knee bolster lower instrument panel screws (Figure 3).
15. Install the end cap trim panel (Figure 3).
16. Connect the battery negative cable.
17. Continue with Section E. Obtaining Vehicle Personal Identification Number (PIN).
D. (WK/XK) Jeep Grand Cherokee & Commander WIN Replacement
1. Disconnect and isolate the battery negative cable.
Park Assist Sensor - Description
Parking Assist Distance Sensor: Description and Operation Park Assist Sensor - Description
DESCRIPTION
Vehicles equipped with the rear park assist system have four park assist sensors (1) installed on
the rear bumper fascia. Vehicles with the front park assist system have six additional sensors
installed on the front bumper fascia. Only the membrane (4) of each sensor is visible through a
hole in the outer vertical surface of the fascia. The remainder of each sensor including the sensor
mounting bracket, the sensor spacer and the sensor wiring connection is concealed behind the
fascia. A sensor wire harness behind the fascia connects the sensors to the vehicle electrical
system.
Each of the sensors is identical in construction and is interchangeable. The electronic circuitry and
a communication chip for each sensor is enclosed and protected within the molded black plastic
sensor housing. The housing includes an integral connector receptacle (3) and two integral
mounting tabs (2). The sensor membrane extends from the surface of the sensor housing, and is
either black or is finished to match the outer surface of the fascia or fascia molding.
The numbering system for the park assist sensors allows for up to twelve sensors on the vehicle,
six front and six rear. However, only ten are utilized on this specific vehicle. The sensors are
numbered in a clockwise manner starting at the left front bumper. The left front sensor (if equipped
with front park assist) is the number 1 sensor. The numbering continues in a clockwise direction
around the vehicle, so the left rear sensor is the number 11 sensor.
Tire Pressure Monitoring (TPM) Transponder Description
Tire Pressure Monitor Receiver / Transponder: Description and Operation Tire Pressure Monitoring
(TPM) Transponder - Description
DESCRIPTION
A transponder is located in three of the four wheel wells of the vehicle to provide the Wireless
Ignition Node (WIN) with the location of the tire pressure sensors on the vehicle. The transponders
are located in the left front, right front and right rear wheel wells. A fourth transponder is not
necessary in the remaining wheel well due to the process-of-elimination theory. Once the system
knows the location of the first three sensors it assumes the location of the fourth tire pressure
sensor is in the left rear tire.
Page 217
Relay Box: Description and Operation Power Distribution Center (PDC) - Operation
OPERATION
All of the current from the battery and the generator output enters the PDC through two cables and
a single two-holed eyelet that is secured with nuts to the two PDC B(+) terminal studs just inside
the front end of the PDC housing. The PDC cover is unlatched and opened to access the battery
and generator output connection B(+) terminal studs, the fuses or the relays. Internal connection of
all of the PDC circuits is accomplished by an intricate combination of hard wiring and bus bars.
For complete circuit diagrams, refer to the appropriate wiring information. The wiring information
includes wiring diagrams, proper wire and connector repair procedures, details of wire harness
routing and retention, connector pin-out information and location views for the various wire harness
connectors, splices and grounds.
Page 212
Power Distribution Module: Service and Repair Power Inverter Module - Installation
INSTALLATION
NOTE: If a new inverter module is being installed, the mounting bracket will need to be transferred
from the old module to the new.
1. Install the inverter module (4) onto the mounting bracket assembly (5). 2. Position the module
and bracket onto the rear seat frame. Line up the mounting tabs (3) with the slots in the seat frame
(2). 3. Push the module forward to engage the mounting tabs and install the fastener (1). 4. NOTE:
Ensure the module electrical connector is connected during seat installation.
Install the rear seat assembly, See: Body and Frame/Seats/Service and Repair/Front Seat Installation.
5. Connect the battery negative cable.
Page 314
Starter Relay: Description and Operation Starter Relay - Operation
OPERATION
The ISO relay consists of an electromagnetic coil, a resistor or diode, and three (two fixed and one
movable) electrical contacts. The movable (common feed) relay contact is held against one of the
fixed contacts (normally closed) by spring pressure. When electromagnetic coil is energized, it
draws the movable contact away from normally closed fixed contact, and holds it against the other
(normally open) fixed contact.
When electromagnetic coil is de-energized, spring pressure returns movable contact to normally
closed position. The resistor or diode is connected in parallel with electromagnetic coil within relay,
and helps to dissipate voltage spikes produced when coil is de-energized.
Page 430
2. Remove the center bezel (1) from the instrument panel. 3. Disconnect the wire harness
connector from the back of the upper instrument panel switch pod (2). 4. Remove the four screws
(3) that secure the switch pod to the back of the center bezel. 5. Remove the upper switch pod
from the center bezel.
Page 265
Main Relay (Computer/Fuel System): Service and Repair Auto Shutdown Relay - Installation
INSTALLATION
The ASD relay is located in the Power Distribution Center (PDC). Refer to label on power
distribution center cover for relay location.
1. Install relay to power distribution center. 2. Install cover to power distribution center.
Powertrain Control Module - Description
Engine Control Module: Description and Operation Powertrain Control Module - Description
PCM
POWERTRAIN CONTROL MODULE (PCM)
The PCM (1) is attached to the right-front inner fender located in the engine compartment.
Modes of Operation
MODES OF OPERATION
As input signals to the Powertrain Control Module (PCM) change, the PCM adjusts its response to
the output devices.
The PCM will operate in two different modes: Open Loop and Closed Loop.
During Open Loop modes, the PCM receives input signals and responds only according to preset
PCM programming. Input from the oxygen (O2S) sensors is not monitored during Open Loop
modes.
During Closed Loop modes, the PCM will monitor the oxygen (O2S) sensors input. This input
indicates to the PCM whether or not the calculated injector pulse width results in the ideal air-fuel
ratio. This ratio is 14.7 parts air-to-1 part fuel. By monitoring the exhaust oxygen content through
the O2S sensor, the PCM can fine tune the injector pulse width. This is done to achieve optimum
fuel economy combined with low emission engine performance.
The fuel injection system has the following modes of operation:
- Ignition switch ON
- Engine start-up (crank)
- Engine warm-up
- Idle
- Cruise
- Acceleration
- Deceleration
- Wide open throttle (WOT)
- Ignition switch OFF
The ignition switch On, engine start-up (crank), engine warm-up, acceleration, deceleration and
wide open throttle modes are Open Loop modes. The idle and cruise modes, (with the engine at
operating temperature) are Closed Loop modes.
Door Module - Removal
Door Module: Service and Repair Door Module - Removal
REMOVAL
1. Disconnect and isolate the negative battery cable. 2. Remove the door trim panel See: Body and
Frame/Doors, Hood and Trunk/Doors/Front Door/Front Door Panel/Service and Repair/Front Door
Trim Panel - Removal.
3. First disconnect the black 10-way electrical connector (1), then the brown 20-way electrical
connector (2). If applicable, next disconnect the black
12-way electrical connector (3) from the module.
4. Remove fasteners and module from vehicle.
Page 382
To exit the "lockout mode," place the ignition in the "RUN" position for one hour and then enter the
correct PIN. Be certain that all accessories are turned OFF and the left front door is open for the
entire hour. Also, monitor the battery state and connect a battery charger if necessary.
1. Connect a battery charger to the vehicle.
2. Connect the wiTECH scan tool.
NOTE:
Have the vehicle's PIN readily available before running the routine.
3. Starting at the "Vehicle View" screen, select "WCM/WIN".
4. Select "Miscellaneous Functions" tab.
5. Select "WIN Replaced".
6. Enter the PIN when prompted.
7. Follow the on screen instructions.
8. Continue with Section G. Frequency Operated Button Integrated Key (FOBIK) Transponders.
G. Program the Frequency Operated Button Integrated Key (FOBIK) Transponder
NOTE:
Each Frequency Operated Button Integrated Key (FOBIK) has a unique ID code that is assigned at
the time the key is manufactured. When a key is programmed into the WIN, the module learns the
transponder ID code and the transponder acquires the unique Secret Key ID code from the WIN.
NOTE:
When the WIN is replaced, a diagnostic scan tool must be used to program the FOBIK's
transponders so they will interface with the new WIN receiver. At least two FOBIK transponders
must be programmed before the vehicle can be operated.
1. Have the vehicle's PIN readily available before running the routine.
2. Place the ignition key in "RUN" position.
3. Starting at the "Vehicle View" screen, select "WCM/WIN".
4. Select the "Miscellaneous Functions" tab.
5. Select "Program Ignition Keys or Key FOBs".
6. Enter the PIN when prompted.
7. Follow the on screen instructions.
8. For vehicles equipped:
> with premium Tire Pressure Monitoring (TPM) system, continue with Section H. Program Spare
Tire Pressure Sensor.
> with only "Auto-Up" front window feature or with "Auto-Up" front window feature and Electronic
Stability Program (ESP), continue with Section I. Calibrate Door Module.
> with only Electronic Stability Program (ESP), continue with Section J. Calibrate the Steering
Angle Sensor (SAS)
> without premium Tire Pressure Monitoring (TPM) system, "Auto-Up" front window feature or
Electronic Stability Program (ESP) clear all Diagnostic Trouble Codes (DTC's), disconnect and
remove the wiTECH VCI pod, remove the battery charger and return the vehicle to the customer.
H. Program Spare Tire Pressure Sensor (WK/XK)
NOTE:
On vehicles equipped with a premium Tire Pressure Monitoring (TPM) system, when the Wireless
Ignition Node (WIN) is replaced, the WIN must be programmed with the ID number and location of
the spare tire pressure sensor mounted in the wheel of the spare tire. This is done by using Special
Tool CH9936 TPM-RKE Analyzer.
1. Determine the spare tire TPS pressure sensor ID number using the following procedure:
Removal
Fuel Pump Relay: Service and Repair Removal
REMOVAL
The fuel pump relay is located in the Power Distribution Center (PDC). Refer to label on power
distribution center cover for relay location.
1. Remove power distribution center cover. 2. Remove relay from power distribution center. 3.
Check condition of relay terminals and power distribution center connector terminals for damage or
corrosion. Repair or replace as necessary
before installing relay.
4. Check for pin height (pin height should be the same for all terminals within the power distribution
center connector). Repair or replace as
necessary before installing relay.
Page 317
Starter Relay: Service and Repair Starter Relay - Installation
INSTALLATION
1. Push down firmly on starter relay until terminals are fully seated into PDC receptacle. 2. Install
PDC cover. 3. Connect battery cable.
Page 242
- Crankshaft position sensor
- Intake manifold air temperature sensor
- Manifold absolute pressure (MAP) sensor
- Throttle position sensor (TPS)
- Camshaft position sensor signal
- Park/neutral switch (gear indicator signal-auto. trans. only)
- Vehicle speed sensor
If the vehicle is under hard deceleration with the proper rpm and closed throttle conditions, the
PCM will ignore the oxygen sensor input signal. The PCM will enter a fuel cut-off strategy in which
it will not supply a ground to the injectors. If a hard deceleration does not exist, the PCM will
determine the proper injector pulse width and continue injection.
Based on the above inputs, the PCM will adjust engine idle speed through the idle air control (IAC)
motor.
The PCM adjusts ignition timing by turning the ground path to the coil on and off.
WIDE OPEN THROTTLE MODE
This is an Open Loop mode. During wide open throttle operation, the PCM receives the following
inputs.
- Battery voltage
- Crankshaft position sensor
- Engine coolant temperature sensor
- Intake manifold air temperature sensor
- Manifold absolute pressure (MAP) sensor
- Throttle position sensor (TPS)
- Camshaft position sensor signal
During wide open throttle conditions, the following occurs:
- Voltage is applied to the fuel injectors with the ASD relay via the PCM. The PCM will then control
the injection sequence and injector pulse width by turning the ground circuit to each individual
injector on and off. The PCM ignores the oxygen sensor input signal and provides a predetermined
amount of additional fuel. This is done by adjusting injector pulse width.
- The PCM adjusts ignition timing by turning the ground path to the coil on and off.
IGNITION SWITCH OFF MODE
When ignition switch is turned to OFF position, the PCM stops operating the injectors, ignition coil,
ASD relay and fuel pump relay.
5V Power Supplies
5 VOLT SUPPLIES
Two different Powertrain Control Module (PCM) five volt supply circuits are used; primary and
secondary.
Ignition Circuit Sense
IGNITION CIRCUIT SENSE
This circuit ties the ignition switch to the Powertrain Control Module (PCM). Battery voltage is
supplied to the PCM through the ignition switch when the ignition is in the Run or Start position.
This is referred to as the "ignition sense" circuit and is used to "wake up" the PCM.
Power Grounds
POWER GROUNDS
The Powertrain Control Module (PCM) has 2 main grounds. Both of these grounds are referred to
as power grounds. All of the high-current, noisy, electrical devices are connected to these grounds
as well as all of the sensor returns. The sensor return comes into the sensor return circuit, passes
through noise suppression, and is then connected to the power ground.
The power ground is used to control ground circuits for the following PCM loads:
- Generator field winding
- Fuel injectors
Heated Seat Module - Description
Seat Heater Control Module: Description and Operation Heated Seat Module - Description
DESCRIPTION
The heated seat module (3) is located under the right front seat (1). It has a single electrical
connector (2) and four locking tabs that secure it to the mounting bracket (4). The module can be
accessed from under the front right seat with the seat in the full back position. The mounting
bracket (4) is bolted to the seat frame assembly (5)
The heated seat module is a microprocessor designed to use Controller Area Network (CAN) data
bus messages from the instrument cluster also known as the Cabin Compartment Node (CCN).
The CCN receives inputs from the heated seat switches and in turn signals the heated seat module
to operate the heated seat elements for both front seats.
Page 403
Headlamp Washer Motor Relay: Description and Operation Headlamp Washer Relay - Operation
OPERATION
The headlamp washer relay is an electromechanical switch that uses a low current input from the
Front Control Module (FCM) to control a high current output to the headlamp washer pump/motor
unit. The movable common feed contact point is held against the fixed normally closed contact
point by spring pressure. When the relay coil is energized, an electromagnetic field is produced by
the coil windings. This electromagnetic field draws the movable relay contact point away from the
fixed normally closed contact point, and holds it against the fixed normally open contact point.
When the relay coil is de-energized, spring pressure returns the movable contact point back
against the fixed normally closed contact point. A resistor is connected in parallel with the relay coil
in the relay, and helps to dissipate voltage spikes and electromagnetic interference that can be
generated as the electromagnetic field of the relay coil collapses.
The headlamp washer relay terminals are connected to the vehicle electrical system through a
connector receptacle in the Integrated Power Module (IPM). The inputs and outputs of the
headlamp washer relay include:
- Common Feed Terminal - The common feed terminal is connected to battery current from a fuse
in the IPM through a fused B(+) circuit at all times.
- Coil Ground Terminal - The coil ground terminal is connected to ground at all times through a take
out with an eyelet terminal located on the sheet metal within the engine compartment.
- Coil Battery Terminal - The coil battery terminal is connected to a high side driver output from the
FCM. The FCM controls headlamp washer system operation through this relay connection.
- Normally Open Terminal - The normally open terminal is connected to the headlamp washer
pump/motor unit at all times. When the relay is energized, the normally open terminal of the relay is
connected to battery current from the fuse in the IPM.
- Normally Closed Terminal - The normally closed terminal is not connected to any circuit in this
application, but provides a battery current output only when the headlamp washer relay coil is
de-energized.
The headlamp washer relay as well as the hard wired inputs and outputs of the relay may be
diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring
information.
Page 381
5. Remove the four WIN mounting screws that secure the WIN to the instrument panel support
structure, (Figure 8).
6. If equipped, disconnect the remote start system antenna module coaxial cable connector from
the WIN connector receptacle.
7. Disconnect the instrument panel wire harness connector from the WIN connector receptacle.
8. Remove the WIN from the instrument panel.
9. Position the new WIN to the instrument panel.
10. Connect the instrument panel wire harness connector to the WIN connector receptacle.
11. If equipped, connect the remote start system antenna module coaxial cable connector to the
WIN connector receptacle.
12. Install and tighten the four screws that secure the WIN to the instrument panel support
structure. Tighten the screws securely.
13. Position the bezel around the ignition switch on the instrument panel, then press firmly and
evenly on the bezel until it snaps into place.
14. Install the knee bolster onto the instrument panel.
15. Install the cluster bezel onto the instrument panel.
16. Connect the battery negative cable.
17. Continue with Section E. Obtaining Vehicle Personal Identification Number (PIN).
E. Obtaining Vehicle Personal Identification Number (PIN)
1. Log onto the DealerCONNECT system.
2. Click on the "PARTS" tab.
3. In the "Reference Library" box, select "KEY CODE".
4. Enter the last eight digits of the Vehicle Identification Number (VIN).
5. Enter the requested data on the screen to obtain the key code.
6. Write down the PIN and then continue with Section F. Program the WIN Receiver.
F. Program the WIN Receiver
The secret key is an ID code that is unique to each WIN. This code is programmed and stored in
the WIN, the PCM, and each ignition key transponder chip. When the WIN is replaced, it is
necessary to program the Secret Key Code into the new module using a diagnostic scan tool.
NOTE:
Programming the WIN is done using a diagnostic scan tool and the vehicle's PIN to enter secure
access mode. If three attempts are made to enter secure access mode using an incorrect PIN,
secure access mode will be locked out for one hour.
Stop Lamp Inhibit Relay - Description
Brake Lamp Relay: Description and Operation Stop Lamp Inhibit Relay - Description
DESCRIPTION
Vehicles equipped with an optional Electronic Stability Program (ESP)/Traction Control System
(TCS) package have a stop lamp inhibit relay. The stop lamp inhibit relay is a conventional
International Standards Organization (ISO) micro relay. Relays conforming to the ISO
specifications have common physical dimensions, current capacities, terminal patterns, and
terminal functions. The relay is contained within a small, rectangular, molded plastic housing and is
connected to all of the required inputs and outputs through five integral male spade-type terminals
that extend from the relay base plate.
The stop lamp inhibit relay is located in the Junction Block (JB) in the passenger compartment
under the driver side end of the instrument panel.
The stop lamp inhibit relay cannot be adjusted or repaired and, if ineffective or damaged, the unit
must be replaced.
Page 244
Engine Control Module: Description and Operation Powertrain Control Module - Operation
PCM
POWERTRAIN CONTROL MODULE (PCM)
The PCM is a pre-programmed, microprocessor digital computer. It regulates ignition timing,
air-fuel ratio, emission control devices, charging system, certain transmission features, speed
control, air conditioning compressor clutch engagement and idle speed. The PCM can adapt its
programming to meet changing operating conditions.
The PCM receives input signals from various switches and sensors. Based on these inputs, the
PCM regulates various engine and vehicle operations through different system components. These
components are referred to as Powertrain Control Module (PCM) Outputs. The sensors and
switches that provide inputs to the PCM are considered Powertrain Control Module (PCM) Inputs.
The PCM adjusts ignition timing based upon inputs it receives from sensors that react to: engine
rpm, manifold absolute pressure, engine coolant temperature, throttle position, transmission gear
selection (automatic transmission), vehicle speed and the brake switch.
The PCM adjusts idle speed based on inputs it receives from sensors that react to: throttle position,
vehicle speed, transmission gear selection, engine coolant temperature and from inputs it receives
from the air conditioning clutch switch and brake switch.
Based on inputs that it receives, the PCM adjusts ignition coil dwell. The PCM also adjusts the
generator charge rate through control of the generator field and provides speed control operation.
NOTE: PCM Inputs:
- Accelerator pedal position sensor (if equipped)
- A/C request (if equipped with factory A/C)
- A/C select (if equipped with factory A/C)
- Auto shutdown (ASD) sense
- Battery temperature
- Battery voltage
- Brake switch
- CAN bus (+) circuits
- CAN bus (-) circuits
- Camshaft position sensor signal
- Clutch Interlock Switch (if equipped)
- Crankshaft position sensor
- Data link connection for diagnostic scan tool
- EGR position sensor (if equipped)
- Engine coolant temperature sensor
- Fuel level
- Generator (battery voltage) output
- Ignition circuit sense (ignition switch in on/off/crank/run position)
- Intake manifold air temperature sensor
- Knock sensor(s) (if equipped)
- Leak detection pump (switch) sense (if equipped)
- Manifold absolute pressure (MAP) sensor
- Oil pressure sensor
- Output shaft speed sensor
- Overdrive/override switch
- Oxygen sensors
- Park/neutral switch (auto. trans. only)
- Power ground
- Power steering pressure switch (if equipped)
- Sensor return
- Signal ground
- Speed control multiplexed single wire input
- Throttle position sensor
- Transmission governor pressure sensor
- Transmission output speed sensor
- Transmission temperature sensor
- Vehicle speed inputs from ABS or RWAL system
Page 57
Pedal Positioning Module: Service and Repair Adjustable Pedal Module - Installation
INSTALLATION
CAUTION: The Adjustable Pedals Module mounting tabs can be damaged during module
installation. Use care to properly align tabs to
prevent binding that could result in tab breakage.
1. Place the module (4) into position making sure the mounting tabs are properly aligned with the
front bracket. 2. Push down on the rear of the module (4) snapping the retaining clips into place in
the side brackets. 3. Connect the adjustable pedals module rear harness connectors (1). 4.
Connect the adjustable pedals module front harness connectors. 5. Install the driver seat
cushion/cover (2) See: Body and Frame/Seats/Seat Cover/Service and Repair/Seat Cushion Cover
- Installation. 6. Connect the battery negative cable. 7. Verify system and vehicle operation.
Page 113
Trailer Towing Relay: Description and Operation Trailer Tow Relay - Operation
OPERATION
The trailer tow relays are electromechanical switches that use a low current input from the Front
Control Module (FCM) (also known as the Integrated Power Module/IPM) to control a high current
output to trailer brake and turn signal lamps. Within each relay are an electromagnetic coil, a
movable contact and two fixed contact points. A resistor is connected in parallel with the coil, and
helps to dissipate voltage spikes and electromagnetic interference that can be generated as the
field of the relay coil collapses.
The movable common supply contact point is held against the fixed normally closed contact point
by spring pressure. When the relay coil is energized, an electromagnetic field is produced by the
coil windings. This field draws the movable contact away from the normally closed contact, and
holds it against the normally open contact. When the relay coil is de-energized, spring pressure
returns the movable contact back against the normally closed contact.
The inputs and outputs of the trailer tow relays include:
- Common Supply Terminal (30) - The common feed terminal is connected to a fused B(+) circuit at
all times.
- Coil Ground Terminal (85) - The coil ground terminal is connected to a control output of the FCM
through a right or left trailer tow turn relay control circuit. The FCM controls trailer brake and turn
lamp operation by controlling a ground path through this circuit.
- Coil Battery Terminal (86) - The coil battery terminal is connected to a fused B(+) circuit at all
times.
- Normally Open Terminal (87) - The normally open terminal is connected to the trailer lamps
through a right or left trailer tow turn signal circuit and provides battery voltage to the right or left
trailer brake and turn lamps whenever the relay is energized.
- Normally Closed Terminal (87A) - The normally closed terminal is not connected to any circuit in
this application, but will have battery voltage present whenever the relay is de-energized.
The trailer tow relays as well as the hard wired inputs and outputs of the relays may be diagnosed
using conventional diagnostic tools and procedures. Refer to the appropriate wiring information.
Page 78
7. Check the supplier ID. Is the Supplier Marquardt?
a. No>>> Inspection is complete. Please refer to normal diagnostics for the customers concern.
b. Yes>>> Continue with step 8.
8. Now check the software version listed on the same page. Is the WIN software version lower than
10.02.01?
a. No>>> Inspection is complete check for other issues causing customer concern
b. Yes>>> Continue with the repair procedure step 9.
NOTE:
If this flash process is interrupted/aborted, the flash should be restarted.
9. Using the wiTECH Diagnostic Application for flashing a WIN is made available through the
wiTECH Diagnostic Application. For instructions select
the "HELP tab on upper portion of the wiTECH window, then "HELP CONTENTS. This will open
the Welcome to wiTECH Help screen were help topics can now selected.
10. Clear any DTC's that may have been set in other modules due to reprogramming. The wiTECH
application will automatically present all DTCs after
the flash and allow the tech to clear them.
POLICY: Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
FAILURE CODE:
Disclaimer:
This bulletin is supplied as technical information only and is not an authorization for repair.
Page 241
IDLE MODE
When the engine is at operating temperature, this is a Closed Loop mode. At idle speed, the PCM
receives inputs from:
- Air conditioning select signal (if equipped)
- Air conditioning request signal (if equipped)
- Battery voltage
- Crankshaft position sensor
- Engine coolant temperature sensor
- Intake manifold air temperature sensor
- Manifold absolute pressure (MAP) sensor
- Throttle position sensor (TPS)
- Camshaft position sensor signal
- Battery voltage
- Park/neutral switch (gear indicator signal-auto. trans. only)
- Oxygen sensors
Based on these inputs, the following occurs:
- Voltage is applied to the fuel injectors with the ASD relay via the PCM. The PCM will then control
injection sequence and injector pulse width by turning the ground circuit to each individual injector
on and off.
- The PCM monitors the O2S sensor input and adjusts air-fuel ratio by varying injector pulse width.
It also adjusts engine idle speed through the idle air control (IAC) motor.
- The PCM adjusts ignition timing by increasing and decreasing spark advance.
- The PCM operates the A/C compressor clutch through the clutch relay. This happens if A/C has
been selected by the vehicle operator and requested by the A/C thermostat.
CRUISE MODE
When the engine is at operating temperature, this is a Closed Loop mode. At cruising speed, the
PCM receives inputs from:
- Air conditioning select signal (if equipped)
- Air conditioning request signal (if equipped)
- Battery voltage
- Engine coolant temperature sensor
- Crankshaft position sensor
- Intake manifold air temperature sensor
- Manifold absolute pressure (MAP) sensor
- Throttle position sensor (TPS)
- Camshaft position sensor signal
- Park/neutral switch (gear indicator signal-auto. trans. only)
- Oxygen (O2S) sensors
Based on these inputs, the following occurs:
- Voltage is applied to the fuel injectors with the ASD relay via the PCM. The PCM will then adjust
the injector pulse width by turning the ground circuit to each individual injector on and off.
- The PCM monitors the O2S sensor input and adjusts air-fuel ratio. It also adjusts engine idle
speed through the idle air control (IAC) motor.
- The PCM adjusts ignition timing by turning the ground path to the coil on and off.
- The PCM operates the A/C compressor clutch through the clutch relay. This happens if A/C has
been selected by the vehicle operator and requested by the A/C thermostat.
ACCELERATION MODE
This is an Open Loop mode. The PCM recognizes an abrupt increase in throttle position or MAP
pressure as a demand for increased engine output and vehicle acceleration. The PCM increases
injector pulse width in response to increased throttle opening.
DECELERATION MODE
When the engine is at operating temperature, this is an Open Loop mode. During hard
deceleration, the PCM receives the following inputs.
- Air conditioning select signal (if equipped)
- Air conditioning request signal (if equipped)
- Battery voltage
- Engine coolant temperature sensor
Trailer Tow Relay - Description
Trailer Towing Relay: Description and Operation Trailer Tow Relay - Description
DESCRIPTION
Vehicles equipped with an optional factory-installed trailer towing package have two trailer tow
relays, one for the trailer right turn and brake lamps and the other for the trailer left turn and brake
lamps. The trailer tow relays are conventional International Standards Organization (ISO) micro
relays. Relays conforming to the ISO specifications have common physical dimensions, current
capacities, terminal patterns, and terminal functions. Each relay is contained within a small,
rectangular, molded plastic housing and is connected to all of the required inputs and outputs
through five integral male spade-type terminals that extend from the relay base plate.
The trailer tow relays are located in the Integrated Power Module (IPM) in the engine compartment
near the battery. Refer to the layout label on the underside of the IPM cover for specific relay cavity
assignment information.
A trailer tow relay cannot be adjusted or repaired and, if ineffective or damaged, the unit must be
replaced.
Page 360
DealerCONNECT Claim Entry Screen located on the Service tab. Claims submitted will be used by
Chrysler to record recall service completions and provide dealer payments.
Use the labor operation numbers and time allowances shown.
Add the cost of the recall parts package plus applicable dealer allowance to your claim.
NOTE:
See the Warranty Administration Manual, Recall Claim Processing Section, for complete recall
claim processing instructions.
Dealer Notification
To view this notification on DealerCONNECT, select "Global Recall System" on the Service tab,
then click on the description of this notification.
Owner Notification and Service Scheduling
All involved vehicle owners known to Chrysler are being notified of the service requirement by first
class mail. They are requested to schedule appointments for this service with their dealers. A
generic copy of the owner letter is included.
Enclosed with each owner letter is an Owner Notification postcard to allow owners to update our
records if applicable.
Vehicle Lists, Global Recall System, VIP and Dealer Follow Up
All involved vehicles have been entered into the DealerCONNECT Global Recall System (GRS)
and Vehicle Information Plus (VIP) for dealer inquiry as needed.
GRS provides involved dealers with an updated VIN list of their incomplete vehicles. The owner's
name, address and phone number are listed if known. Completed vehicles are removed from GRS
within several days of repair claim submission.
To use this system, click on the "Service" tab and then click on "Global Recall System." Your
dealer¡C■s VIN list for each recall displayed can be sorted by: those vehicles that were unsold at
recall launch, those with a phone number, city, zip code, or VIN sequence.
Dealers must perform this repair on all unsold vehicles before retail delivery. Dealers should also
use the VIN list to follow up with all owners to schedule appointments for this repair.
Recall VIN lists may contain confidential, restricted owner name and address information that was
obtained from the Department of Motor Vehicles of various states. Use of this information is
permitted for this recall only and is strictly prohibited from all other use.
Page 380
2. Unsnap the cluster bezel from the instrument panel (Figure 6).
3. Remove the knee bolster from the instrument panel (Figure 7).
4. Using a trim stick or another suitable wide flat-bladed tool, carefully pry the bezel around the
ignition switch until it unsnaps from the instrument
panel (Figure 7).
Page 359
Parts Information
Due to the small number of involved vehicles expected to require a Wireless Ignition Node (WIN)
receiver, no parts will be distributed initially. WIN receivers should be ordered only after inspection
determines that replacement is required. Very few vehicles are expected to require WIN
replacement.
Reminder: VIN specific parts application for your dealer's assigned vehicles is available through the
Global Recall System (GRS) and Vehicle Information Plus (VIP).
Special Tools
The special tools shown are required to perform this repair.
Completion Reporting and Reimbursement
Claims for vehicles that have been serviced must be submitted on the
Page 174
Headlamp Igniter Module: Service and Repair High Intensity Discharge Ballast - Installation
INSTALLATION
WARNING: To avoid serious or fatal injury when working on the High Intensity Discharge (HID)
headlamp system, be certain to take the
proper precautions. The headlamp switch must be in the OFF position. Disconnect and isolate the
battery negative cable. There is a risk of death caused by contact with high voltage used in the HID
headlamps. There is a risk of explosion or fire caused by highly flammable materials in the vicinity
of damaged HID lighting elements. There is a risk of injury caused by exposure to Ultra Violet (UV)
light, a risk of burns caused by high component operating temperatures, a risk of mercury
poisoning through glass splinters produced by bursting HID lighting elements. There is also a risk
of poisoning caused by inhalation of mercury vapors and by toxic salts and mercury compounds
being ingested or coming into contact with the skin. Do not come into contact with parts that are
under high voltage. Persons with active electronic implants (e.g. heart pacemakers) must never
work on HID headlamps. Wear insulated safety shoes, safety glasses and protective gloves.
Remove flammable materials and ensure sufficient ventilation in the working area.
1. Position the electronic ballast module (2) to the underside of the housing (1) of the front lamp
unit. 2. Align and push the module forward into the lamp housing far enough to fully engage the
self-docking connector. 3. Install and tighten the two screws (3) that secure the module to the
housing. Tighten the screws securely. 4. Reinstall the front lamp unit into the vehicle. See: Lighting
and Horns/Headlamp/Headlamp Bulb/Service and Repair/Front Lamp Unit Installation.
5. Reconnect the battery negative cable.
Page 124
4. Install the HCU (3) with bracket (5) to the vehicle and tighten the 2 mounting nuts.
5. Reconnect the HCU electrical connector (5). 6. Install the 4 chassis lines (3) at the HCU (4). 7.
Install the secondary brake tube at the HCU (4). 8. Install the secondary brake tube at the master
cylinder. 9. Install the primary brake tube at the HCU (4).
10. Install the primary brake tube at the master cylinder.
11. Install negative battery cable to the battery. 12. Remove the brake pedal prop rod. 13. Bleed
base and ABS brake systems,See: Brakes and Traction Control/Brake Bleeding/Service and
Repair. 14. Connect the scan tool and initialize the ABM by performing the ABS Verification Test
See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated
Procedures/Verification Tests/ABS Verification Test.
Page 223
4. Reach behind the JB to disconnect the top side JB connector.
5. Remove the screws (1) that secure the JB to the mounting bracket. 6. Disengage the two snap
clips (2) that secure the top of the JB to the mounting bracket. Push the top of the junction block
out of the top of the
bracket and pull it upward to disengage the lower retaining tabs (3).
7. Remove the JB from the vehicle by lowering out of the opening at the bottom of the instrument
panel.
Page 427
Integrated Accessory Switch Assembly: Description and Operation Instrument Cluster Switch Pod Operation
Lower
LOWER
For information covering details of operation for the individual switches and circuits contained
within the lower instrument panel switch pod, refer to the specific service information covering the
system to which that switch belongs.
Upper
UPPER
For information covering details of operation for the individual switches and circuits contained
within the upper instrument panel switch pod, refer to the specific service information covering the
system to which that switch belongs.
Page 397
Heated Glass Element Relay: Service and Repair Rear Defogger Relay - Installation
INSTALLATION
1. Position the EBL relay (2) into the proper receptacle of the junction block (JB) (1) located in the
passenger compartment. 2. Align the EBL relay terminals with the terminal cavities in the JB
receptacle and push down firmly on the relay until the terminals are fully seated. 3. Install the JB
See: Maintenance/Fuses and Circuit Breakers/Fuse Block/Service and Repair/Junction Block Installation. 4. Reconnect the negative battery cable.
Page 461
Remote Switch: Service and Repair Remote Radio Switches - Installation
INSTALLATION
1. Position the remote radio switch (2) to the mounting hole on the outside of the steering wheel
rear trim cover. Be certain that the connector
receptacle is oriented toward the bottom of the switch and pointed toward the center of the steering
wheel.
2. Press firmly and evenly on the remote radio switch until each of the switch latches is fully
engaged in the mounting hole of the steering wheel rear
trim cover.
3. Reconnect the steering wheel wire harness connector to the connector receptacle of the remote
radio switch. 4. Install the speed control switch (3) (6) onto the steering wheel. See: Sensors and
Switches - Cruise Control/Cruise Control Switch/Service and
Repair/Speed Control Switch - Installation.
5. Install the driver side airbag (5) to the steering wheel (1). See: Restraint Systems/Air Bag
Systems/Air Bag/Service and Repair/Driver Air Bag Installation.
6. Connect the battery negative cable.
High Intensity Discharge Ballast - Removal
Headlamp Igniter Module: Service and Repair High Intensity Discharge Ballast - Removal
REMOVAL
WARNING: To avoid serious or fatal injury when working on the High Intensity Discharge (HID)
headlamp system, be certain to take the
proper precautions. The headlamp switch must be in the OFF position. Disconnect and isolate the
battery negative cable. There is a risk of death caused by contact with high voltage used in the HID
headlamps. There is a risk of explosion or fire caused by highly flammable materials in the vicinity
of damaged HID lighting elements. There is a risk of injury caused by exposure to Ultra Violet (UV)
light, a risk of burns caused by high component operating temperatures, a risk of mercury
poisoning through glass splinters produced by bursting HID lighting elements. There is also a risk
of poisoning caused by inhalation of mercury vapors and by toxic salts and mercury compounds
being ingested or coming into contact with the skin. Do not come into contact with parts that are
under high voltage. Persons with active electronic implants (e.g. heart pacemakers) must never
work on HID headlamps. Wear insulated safety shoes, safety glasses and protective gloves.
Remove flammable materials and ensure sufficient ventilation in the working area.
1. Disconnect and isolate the battery negative cable. 2. Remove the front lamp unit from the
vehicle. See: Lighting and Horns/Headlamp/Headlamp Bulb/Service and Repair/Front Lamp Unit Removal. 3. From the underside of the housing (1), remove the two screws (3) that secure the
electronic ballast module (2) to the front lamp unit. 4. Pull the module rearward far enough to
disengage it from the self-docking connector. 5. Remove the module from the housing.
Page 187
Trailer Lighting Module: Service and Repair Trailer Tow Module - Installation
INSTALLATION
1. Position the Trailer Module (TM) (1) to the mounting plate (2) and insert the two mounting tabs
on the sides of the module into the latch feature
(5) cavities in the plate.
2. Push downward on the module until the two latch features integral to the mounting plate are fully
engaged over the mounting tabs on the sides of
the module.
3. Reconnect the four body wire harness connectors to the module connector receptacles (4). 4.
Reinstall the rear seat cushion onto the rear floor panel. See: Body and Frame/Seats/Seat
Cover/Service and Repair/Seat Cushion Cover Installation.
5. Reconnect the battery negative cable.
Page 385
Keyless Systems - Intermittently Inoperative
Keyless Start Control Module: All Technical Service Bulletins Keyless Systems - Intermittently
Inoperative
NUMBER: 08-010-10
GROUP: Electrical
DATE: May 14, 2010
THE wiTECH DIAGNOSTIC APPLICATION IS THE PREFERRED METHOD FOR FLASHING
ECUs.
HELP USING THE wiTECH DIAGNOSTIC APPLICATION FOR FLASHING AN ECU IS
AVAILABLE BY SELECTING "HELP" THEN "HELP CONTENTS" AT THE TOP OF THE wiTECH
DIAGNOSTIC APPLICATION WINDOW.
THE wiTECH SOFTWARE LEVEL MUST BE AT RELEASE 10.04 OR HIGHER TO PERFORM
THIS PROCEDURE.
StarMOBILE DESKTOP CLIENT MAY ALSO BE USED TO PERFORM THIS PROCEDURE.
SUBJECT: Flash: WIN Module For Intermittent RKE Functions
OVERVIEW: This bulletin involves flash reprogramming the Wireless Ignition Node (WIN) with new
software.
MODELS:
2010 (DS) Ram Truck 1500
2010 (JC) Journey
2010 (LC) Challenger
2010 (LE) International 300 or Charger
2010 (LX) 300 and/or Charger
2010 (WK) Grand Cherokee
2010 (WH) International Grand Cherokee
2010 (XK) Commander
2010 (XH) International Commander
SYMPTOM/CONDITION: Customer may experience intermittent FOBIK operating characteristics.
Dealers are required to verify the manufacturer of the Wireless Ignition Node Module (WIN) and if
necessary, Flash the WIN with updated software.
DIAGNOSIS: If the vehicle operator describes the above Symptom/Condition, perform the Repair
Procedure.
REPAIR PROCEDURE: Check manufacturer of WIN Module
1. Using the wiTECH Diagnostic Application verify the WIN module is manufactured by Marquardt
2. Click on the reports tab on the top of the main page.
3. Select Run/View Reports.
4. Select ECU Details report.
5. Click on the arrow key to run the report.
6. Scroll to the bottom to find the WIN section.
Auto Shutdown Relay - Description
Main Relay (Computer/Fuel System): Description and Operation Auto Shutdown Relay Description
DESCRIPTION
The 5-pin, 12-volt, Automatic Shutdown (ASD) relay is located in the Power Distribution Center
(PDC). Refer to label on power distribution center cover for relay location.
Page 47
Parking Assist Control Module: Description and Operation Park Assist Module - Operation
OPERATION
The microprocessor in the park assist module contains the park assist system logic circuits. The
module uses On-Board Diagnostics (OBD) and can communicate with other electronic modules in
the vehicle as well as with the diagnostic scan tool using the Controller Area Network (CAN) data
bus. This method of communication is also used for park assist system diagnosis and testing
through the 16-way data link connector located on the driver side lower edge of the instrument
panel.
The module provides voltage to each of the park assist sensors located behind the front and rear
bumper fascias and to the front and rear park assist displays. The module then monitors return
inputs from each of the sensors and the displays on dedicated hard wired data communication
circuits. The sensor inputs allow the module to determine when an obstacle is in the front or rear
path of the vehicle and enables the module to calculate the relative location of the obstacle, and
whether the distance to that obstacle is increasing or decreasing.
Pre-programmed decision algorithms and calibrations allow the module microprocessor to
determine the appropriate park assist system outputs based upon the inputs received from the park
assist sensors and electronic messages received from other modules in the vehicle over the CAN
data bus. When the programmed conditions are met the module sends electronic messages to the
park assist displays over a dedicated serial bus to obtain the proper park assist system visual and
audible outputs. The module also broadcasts electronic messages over the CAN data bus to
enable the other electronic features of the park assist system.
The park assist module microprocessor continuously monitors all of the park assist system
electrical circuits and components to determine the system readiness. If the module detects a
monitored system fault, it sets a Diagnostic Trouble Code (DTC) and sends the appropriate
electronic messages to the instrument cluster over the CAN data bus to control operation of certain
park assist system audible warnings and textual messages displayed in the reconfigurable display
of the instrument cluster.
The park assist module receives battery current on a fused ignition switch output (run-start) circuit
through a fuse in the Junction Block (JB). The module receives ground through a ground circuit and
take out of the underbody wire harness. These connections allow the module to be operational
whenever the ignition switch is in the START or ON positions.
The hard wired circuits between components related to the park assist module may be diagnosed
using conventional diagnostic tools and procedures. Refer to the appropriate wiring information.
The wiring information includes wiring diagrams, proper wire and connector repair procedures,
details of wire harness routing and retention, connector pin-out information and location views for
the various wire harness connectors, splices and grounds.
However, conventional diagnostic methods will not prove conclusive in the diagnosis of the park
assist module or the electronic controls or communication between modules and other devices that
provide some features of the park assist system. The most reliable, efficient, and accurate means
to diagnose the park assist module or the electronic controls and communication related to park
assist module operation requires the use of a diagnostic scan tool. Refer to the appropriate
diagnostic information.
Page 254
1. Connect a battery charger to the vehicle. 2. Connect the scan tool. 3. Have a unique vehicle PIN
readily available before running the routine. 4. Ignition key should be in RUN position.
CAUTION: If the PCM and WIN are replaced at the same time, the PCM MUST be programmed
before the WIN.
5. Select "ECU View". 6. Select "WIN Wireless Control". 7. Select "Miscellaneous Functions." 8.
Select "PCM Replaced". 9. Enter the PIN when prompted.
10. Verify the correct information. 11. Cycle ignition key after the successful routine completion.
Trailer Tow Module - Description
Trailer Lighting Module: Description and Operation Trailer Tow Module - Description
DESCRIPTION
The Trailer Module (TM) (1) is used only on vehicles manufactured for certain export markets and
equipped with a factory-installed trailer towing package. The TM is secured on a molded plastic
tray-like mounting plate located on the rear floor panel near the transmission tunnel under the right
rear seat cushion. The module is connected to the vehicle electrical system through dedicated take
outs and connectors of the body wire harness.
There are two mounting tabs (2) integral to the TM housing that secure the module through two
latch features integral to the mounting plate. Four connector receptacles (4) containing terminal
pins that connect the module to the vehicle electrical system are integral to the one side of the
housing. One additional receptacle (3) is not utilized in this application.
The TM cannot be adjusted or repaired and, if damaged or ineffective, it must be replaced.
Page 426
vehicle operator an indication when the function of that switch is currently active. Only the hazard
warning switch push button latches, the manual headlamp leveling switch features a thumbwheel
with four detent positions, while the remaining switches feature momentary operation.
Four screws secure the switch to the back of the instrument panel center bezel through integral
mounting tabs that are molded onto each end of the switch housing. The back of the switch
housing has an integral connector receptacle containing terminal pins that connect the switch to the
vehicle electrical system through a dedicated take out and connector of the instrument panel wire
harness.
Panel lamps dimmer controlled illumination lamps integral to the circuit board within the switch
provide back lighting for visibility at night, but these lamps are not serviceable. The individual
switches in the upper instrument panel switch pod cannot be repaired and are not serviced
individually. If any component within the switch pod is ineffective or damaged, the entire upper
switch pod must be replaced.
Page 18
Entertainment System Control Module: Description and Operation Satellite Video Module Operation
OPERATION
The satellite video module receives signals from the roof mounted antenna and processes this
information before it is sent to the radio. The module operates on both battery feed circuits and
CAN bus messages. It will operate with the ignition key in the run or accessory position only.
Junction Block - Removal
Relay Box: Service and Repair Junction Block - Removal
REMOVAL
WARNING: Disable the airbag system before attempting any steering wheel, steering column, or
instrument panel component diagnosis or
service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the
airbag system capacitor to discharge before performing further diagnosis or service. This is the
only sure way to disable the airbag system. Failure to take the proper precautions could result in
accidental airbag deployment and possible personal injury.
1. Disconnect and isolate the battery negative cable. 2. Remove the steering column opening cover
(2). This is accomplished by pulling outward on the upper edge of the cover to disengage the
retaining
clips and removing the screw at the bottom of the cover.
3. Disconnect the two bottom side Junction Block (JB) connectors.
Page 335
Tire Pressure Monitor Receiver / Transponder: Service and Repair Tire Pressure Monitoring (TPM)
Transponder - Installation
Front
FRONT TRANSPONDER
1. Install the transponder (2) to the vehicle and reconnect the electrical connector (3). 2. Install the
mounting screw (1) for the transponder (2) Tighten to 3 Nm (25 in. lbs.).
3. Install the wheel well housing cover (2). 4. Lower the vehicle.
Rear
REAR TRANSPONDER
Traffic Module - Removal
Navigation Module: Service and Repair Traffic Module - Removal
REMOVAL
1. Disconnect and isolate the battery negative cable. 2. Remove the rear quarter trim panel. Refer
to See: Body and Frame/Interior Moulding / Trim/Trim Panel/Service and Repair/Luggage
Compartment Trim/Quarter Trim Panel - Removal.
3. Disconnect the electrical connectors. 4. Remove the mounting fasteners and remove the Traffic
Message Center Module (TMC).
High Intensity Discharge Ballast - Description
Headlamp Igniter Module: Description and Operation High Intensity Discharge Ballast - Description
DESCRIPTION
Vehicles equipped with the optional High Intensity Discharge (HID) headlamps have an electronic
ballast module (1) mounted to the underside of each front lamp unit. The electronic circuitry of the
module is contained within a die cast aluminum module housing, which is secured by two screws
through two integral mounting lugs (3) to the molded plastic front lamp unit housing.
The sealed, self-docking connector receptacle (2) of the module is integral to the side of the
housing that mates to the front lamp unit. The connector receptacle contains terminal pins that
connect the module to the vehicle electrical system, to the high tension HID cable and to the front
lamp unit through dedicated take outs and connectors of the front lamp unit wire harness.
The electronic ballast module cannot be adjusted or repaired and, if damaged or ineffective, it must
be replaced.
Page 376
DealerCONNECT Claim Entry Screen located on the Service tab. Claims submitted will be used by
Chrysler to record recall service completions and provide dealer payments.
Use the labor operation numbers and time allowances shown.
Add the cost of the recall parts package plus applicable dealer allowance to your claim.
NOTE:
See the Warranty Administration Manual, Recall Claim Processing Section, for complete recall
claim processing instructions.
Dealer Notification
To view this notification on DealerCONNECT, select "Global Recall System" on the Service tab,
then click on the description of this notification.
Owner Notification and Service Scheduling
All involved vehicle owners known to Chrysler are being notified of the service requirement by first
class mail. They are requested to schedule appointments for this service with their dealers. A
generic copy of the owner letter is included.
Enclosed with each owner letter is an Owner Notification postcard to allow owners to update our
records if applicable.
Vehicle Lists, Global Recall System, VIP and Dealer Follow Up
All involved vehicles have been entered into the DealerCONNECT Global Recall System (GRS)
and Vehicle Information Plus (VIP) for dealer inquiry as needed.
GRS provides involved dealers with an updated VIN list of their incomplete vehicles. The owner's
name, address and phone number are listed if known. Completed vehicles are removed from GRS
within several days of repair claim submission.
To use this system, click on the "Service" tab and then click on "Global Recall System." Your
dealer¡C■s VIN list for each recall displayed can be sorted by: those vehicles that were unsold at
recall launch, those with a phone number, city, zip code, or VIN sequence.
Dealers must perform this repair on all unsold vehicles before retail delivery. Dealers should also
use the VIN list to follow up with all owners to schedule appointments for this repair.
Recall VIN lists may contain confidential, restricted owner name and address information that was
obtained from the Department of Motor Vehicles of various states. Use of this information is
permitted for this recall only and is strictly prohibited from all other use.
Page 454
Pedal Positioning Switch: Service and Repair Installation
INSTALLATION
1. Install the switch (2) to the bin (3). 2. Install the wiring connector. 3. Install the bin (3) into the I/P.
4. Install the I/P end cap (1). 5. Connect the battery negative cable. 6. Verify system operation.
Page 379
7. Remove the four WIN mounting screws (Figure 4).
8. Remove the WIN from the rear of the instrument panel bringing it through the opening below the
steering column and disconnect the electrical
connector from the WIN.
9. Connect the electrical connector to the new WIN and position it back into the instrument panel.
10. Install the four WIN mounting screws through the instrument panel into the WIN and tighten
securely (Figure 4).
11. Install the instrument cluster trim cover. Ensuring that the cover snaps into the securing clips.
12. Install the knee bolster steel reinforcement.
13. Install the knee bolster cover (Figure 3).
14. Install the two knee bolster lower instrument panel screws (Figure 3).
15. Install the end cap trim panel (Figure 3).
16. Connect the battery negative cable.
17. Continue with Section E. Obtaining Vehicle Personal Identification Number (PIN).
D. (WK/XK) Jeep Grand Cherokee & Commander WIN Replacement
1. Disconnect and isolate the battery negative cable.
Page 211
Power Distribution Module: Service and Repair Power Inverter Module - Removal
REMOVAL
1. Disconnect and isolate the battery negative cable. 2. Remove the rear seat cushion assembly,
See: Body and Frame/Seats/Seat Back/Service and Repair/Seat Back - Removal. 3. Remove the
fastener (1) from the inverter module mounting bracket of the (5). 4. Slide the module rearward to
release the mounting tabs (3) from the slots in the seat frame (2). 5. Remove the inverter module
(4).
Removal
Pedal Positioning Switch: Service and Repair Removal
REMOVAL
1. Disconnect and isolate the battery negative cable. 2. Remove the I/P End Cap (1). 3. Reach into
the I/P and push the bin (3) out the front of the I/P. 4. Remove wiring connector. 5. Remove switch
(2) from bin (3).
Transmission Control Relay - Description
Transmission Control System Relay: Description and Operation Transmission Control Relay Description
DESCRIPTION
NOTE: Due to different power control configurations, the Transmission Control Relay (if equipped)
may be referred to as a PCM relay.
The relay is supplied fused B+ voltage, energized by the TCM, and is used to supply power to the
solenoid pack when the transmission is in normal operating mode.
Description and Operation
Hood Sensor/Switch (For Alarm): Description and Operation
DESCRIPTION
The hood ajar switch is a normally closed, single pole, spring-loaded plunger actuated switch. This
switch has two unique versions that are used in two different applications. One switch is used only
on vehicles equipped with the Vehicle Theft Security System (VTSS) for sale in certain export
markets where protection of the underhood area is required equipment. The second switch is used
only on domestic vehicles equipped with an optional remote starter system.
The molded plastic switch body (5) has an integral molded connector receptacle (1) on the lower
end containing two terminal pins. The switch is connected to the vehicle electrical system through a
dedicated take out of the headlamp and dash wire harness. Two integral latches (2) lock the switch
into a keyed mounting hole in the stamped steel switch mounting bracket. The mounting bracket is
secured with screws to the left inner fender shield near the fender ledge in the engine
compartment. The underside of the hood panel inner reinforcement actuates the switch plunger as
the hood panel is closed.
The switch plunger (3) extends through a mounting collar (4) and a sleeve-like retainer ring on the
upper end of the switch body. The retainer ring has a one time, self-adjustment feature that is
activated after the switch is installed by closing the hood. The retainer ring is also color-coded to
aid in identifying the switch application. A dark brown retainer ring identifies the underhood security
switch application, while a white retainer ring identifies the remote starter system application.
An installed hood ajar switch cannot be readjusted or repaired. If the switch is damaged,
ineffective, or requires readjustment, it must be replaced with a new unit.
Page 377
Additional Information
If you have any questions or need assistance in completing this action, please contact your Service
and Parts District Manager.
Customer Services Field Operations Chrysler Group LLC
A. Inspect Win Receiver Operation (All Models)
1. Insert FOBIK in the WIN receiver.
2. Place the ignition in the "RUN" position.
3. Shift the gear shift lever from the "PARK" position to the "NEUTRAL" position.
4. With the gear shifter in the "NEUTRAL" position, attempt to turn the FOBIK counterclockwise to
the "OFF" position and remove the FOBIK from the WIN receiver.
> If the FOBIK can be removed from the WIN receiver with the gear shift lever in "NEUTRAL,"
continue with one of the following sections:
> B. (DS/DJ/D2) Ram 1500/2500/3500 Truck WIN Replacement
> C. (LC/LX) Dodge Challenger/Charger & Chrysler 300 WIN
Replacement
> D. (WK/XK) Jeep Grand Cherokee & Commander WIN Replacement
> If the FOBIK cannot be removed with the gear shift lever in "NEUTRAL,"continue with Step 5 of
this procedure.
5. Place the gear shift lever in the "PARK" position and remove the FOBIK from the WIN receiver.
6. Repeat Steps 1 through 4 of this procedure 49 times.
> If the FOBIK can be removed while the gear shift lever is in the "NEUTRAL" position during any
of the 50 test cycles, replace the WIN receiver.
> If the FOBIK cannot be removed while the gear shift is in the "NEUTRAL" position after 50 test
cycles, return the vehicle to the customer.
NOTE:
Only one FOBIK needs to be used to perform this test. There is no need to cycle test both FOBIK's
50 times.
B. (DS/DJ/D2) Ram 1500/2500 Truck WIN Replacement
1. Disconnect and isolate the battery negative cable.
2. Remove the instrument panel knee bolster (Figure 1).
3. Remove the four Wireless Ignition Node (WIN) receiver mounting screws (Figure 2).
Page 309
7. Check the supplier ID. Is the Supplier Marquardt?
a. No>>> Inspection is complete. Please refer to normal diagnostics for the customers concern.
b. Yes>>> Continue with step 8.
8. Now check the software version listed on the same page. Is the WIN software version lower than
10.02.01?
a. No>>> Inspection is complete check for other issues causing customer concern
b. Yes>>> Continue with the repair procedure step 9.
NOTE:
If this flash process is interrupted/aborted, the flash should be restarted.
9. Using the wiTECH Diagnostic Application for flashing a WIN is made available through the
wiTECH Diagnostic Application. For instructions select
the "HELP tab on upper portion of the wiTECH window, then "HELP CONTENTS. This will open
the Welcome to wiTECH Help screen were help topics can now selected.
10. Clear any DTC's that may have been set in other modules due to reprogramming. The wiTECH
application will automatically present all DTCs after
the flash and allow the tech to clear them.
POLICY: Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
FAILURE CODE:
Disclaimer:
This bulletin is supplied as technical information only and is not an authorization for repair.
Description
Fuel Pump Relay: Description and Operation Description
DESCRIPTION
The 5-pin, 12-volt, fuel pump relay is located in the Power Distribution Center (PDC). Refer to the
label on the power distribution center cover for relay location.
Page 157
Fog/Driving Lamp Relay: Description and Operation Rear Fog Lamp Relay - Description
DESCRIPTION
The rear fog lamp relay is a conventional International Standards Organization (ISO) micro relay.
Relays conforming to the ISO specifications have common physical dimensions, current capacities,
terminal patterns, and terminal functions. This relay is contained within a small, rectangular,
molded plastic housing and is connected to all of the required inputs and outputs through five
integral male spade-type terminals that extend from the relay base plate.
The rear fog lamp relay is located in the Integrated Power Module (IPM) in the engine compartment
near the battery. Refer to the layout label on the underside of the IPM cover for specific relay cavity
assignment information.
The rear fog lamp relay cannot be adjusted or repaired and, if ineffective or damaged, the unit must
be replaced.
Page 63
Door Module: Description and Operation Door Module - Operation
OPERATION
The door module receives input from the door lock switches and sends that message to the cluster
for door lock operation (vehicles equipped with memory system only). It also controls the mirror
adjustment by receiving input from the mirror switch on the door trim panel. Sensors in the mirrors
act as inputs to the door module in order to position the mirrors to presets by the driver(s). The
power supply to the mirrors is supplied by the door modules. On vehicles equipped with a memory
system, the front door ajar switches are inputs to the door module. The modules use this
information for door lock inhibit etc.
A memory setting is saved by pressing the "set" button, then pressing either the memory "1" or "2"
button within 5 seconds of pressing the "set" button.
A memory setting is recalled by pressing either the memory "1" or "2" button, or by pressing the
unlock button on a "linked" Remote Keyless Entry (RKE) transmitter.
For driver safety, memorized settings can not be recalled if the transmission is in a position other
than Park or the seat belt is latched.
Both driver and passenger door modules provide active and stored Diagnostic Trouble Codes
(DTC's) to aid in diagnosis.
Both modules are identical in appearance with the exception of an extra ground wire on the driver
side door module.
Page 218
Relay Box: Description and Operation Junction Block - Description
DESCRIPTION
An electrical Junction Block (JB) is concealed beneath the driver side of the instrument panel in the
passenger compartment of the vehicle. The JB is accessed by pulling down on the steering column
opening cover (2) exposing the lower steering column and portions of the instrument panel wiring
harness. The JB combines the functions previously provided by a separate fuseblock module and
relay center. The JB serves to simplify and centralize numerous electrical components, as well as
to distribute electrical current to many of the accessory systems in the vehicle. It also eliminates the
need for numerous splice connections. The JB houses blade-type mini fuses, blade-type automatic
resetting circuit breakers and International Standards Organization (ISO) relays.
The molded plastic JB housing is secured with four screws and two snap retainers to the JB
mounting bracket behind the instrument panel steering column opening cover (3). The steering
column opening cover can be pulled downward to disengage the latches and provide service
access to all of the fuses, relays and wire harness connectors (1) of the JB. Refer to Steering
Column Opening Cover in Body for additional service information.
The JB contains six relays that are integral to the housing assembly. The relays cannot be replaced
separately. If any of the relays are diagnosed inoperative or damaged the complete JB unit must be
replaced. The six relays are:
- Lock relay
- Unlock relay
- Driver door unlock relay
- Rear wiper relay
- Ignition "RUN" relay
- Ignition "RUN/ACCESSORY DELAY" relay
The JB unit cannot be repaired and is only serviced as an assembly. If any internal circuit or the JB
housing is inoperative or damaged, the entire JB unit must be replaced, See: Maintenance/Fuses
and Circuit Breakers/Fuse Block/Service and Repair/Junction Block - Removal for the appropriate
Page 438
Parking Assist Distance Sensor: Description and Operation Park Assist Sensor - Operation
OPERATION
The park assist sensors are ultrasonic transceivers that are completely controlled by the park assist
module. The sensors transmit and receive ultrasonic signals. The sensors each receive battery
current and ground in parallel from the module, but are each connected to individual dedicated
serial bus communication circuits to the module.
Each sensor membrane is oscillated, then quieted by the module in a pulsing fashion. While the
sensor membrane oscillates, it emits an ultrasonic signal. This signal will bounce or echo off of
objects in the path of the vehicle. While quieted, each membrane receives the echoes of the
ultrasonic signals it and the other sensors have transmitted. The sensors then communicate this
echo data over the serial bus lines back to the module. The microprocessor in the module uses the
intervals between the ultrasonic transmission and reception data from the sensors to calculate the
distance to any obstacles identified by the ultrasonic echoes.
The hard wired circuits between components related to the park assist sensors may be diagnosed
using conventional diagnostic tools and procedures. Refer to the appropriate wiring information.
The wiring information includes wiring diagrams, proper wire and connector repair procedures,
details of wire harness routing and retention, connector pin-out information and location views for
the various wire harness connectors, splices and grounds.
However, conventional diagnostic methods will not prove conclusive in the diagnosis of the park
assist sensors or the electronic controls or communication between modules and other devices that
provide some features of the park assist system. The most reliable, efficient, and accurate means
to diagnose the park assist sensors or the electronic controls and communication related to park
assist sensor operation requires the use of a diagnostic scan tool. Refer to the appropriate
diagnostic information.
Description and Operation
Pedal Positioning Module: Description and Operation
DESCRIPTION
The Adjustable Pedals Module (APM) is located underneath the driver seat, towards the front and
on the outboard side. It is used in conjunction with the other modules in the memory system.
Page 253
The secret key is an ID code that is unique to each WIN. This code is programmed and stored in
the WIN, the PCM, and each ignition key transponder chip. When the PCM or WIN is replaced, it is
necessary to program the Secret Key Code into the new module using a diagnostic scan tool.
Follow the programming steps outlined in the diagnostic scan tool for PCM REPLACED, WIN
REPLACED, or TIPM REPLACED under MISCELLANEOUS FUNCTIONS for the WIRELESS
CONTROL MODULE menu item as appropriate.
NOTE: Programming the PCM or WIN is done using a diagnostic scan tool and a PIN to enter
secure access mode. If three attempts are made
to enter secure access mode using an incorrect PIN, secure access mode will be locked out for
one hour. To exit this lockout mode, turn the ignition to the RUN position for one hour and then
enter the correct PIN. Be certain that all accessories are turned OFF. Also, monitor the battery
state and connect a battery charger if necessary.
PCM/WIN PROGRAMMING
When an PCM and the WIN are replaced at the same time, perform the following steps in order:
1. Program the new WIN. 2. Replace all ignition keys and program them to the new WIN.
PROGRAMMING THE WIN
CAUTION: Read all notes and cautions for programming procedures.
1. Connect a battery charger to the vehicle. 2. Connect the scan tool.
NOTE: Have a unique vehicle PIN readily available before running the routine
CAUTION: If the PCM and WIN are replaced at the same time, the PCM MUST be programmed
before the WIN.
3. Select "ECU View." 4. Select "WIN". 5. Select "Miscellaneous Functions." 6. Select "WIN
Replaced". 7. Enter the PIN when prompted. 8. Cycle ignition key after the successful routine
completion.
NOTE: If the PCM and the WIN are replaced at the same time, all vehicle keys will need to be
replaced and programmed to the new WIN.
PROGRAMMING IGNITION KEYS TO THE WIN
Each FOBIK has a unique ID code that is assigned at the time the key is manufactured. When a
key is programmed into the WIN, the module learns the transponder ID code and the transponder
acquires the unique Secret Key ID code from the WIN.
CAUTION: Read all notes and cautions for programming procedures.
1. Connect a battery charger to the vehicle. 2. Connect the scan tool. 3. Have a unique vehicle PIN
readily available before running the routine. 4. Ignition key should be in RUN position. 5. Select
"ECU View". 6. Select "WIN Wireless Control". 7. Select "Miscellaneous Functions." 8. Select
"Program Ignition Keys or Key FOBs", Start 9. Enter the PIN when prompted.
10. Verify the correct information. 11. Cycle ignition key after the successful routine completion.
NOTE: If the original keys do not successfully program to the new WIN after the proper procedures
are followed correctly, programming
new keys will be necessary.
NOTE: A maximum of eight keys can be learned by the WIN. Once a key is learned by a WIN, that
key has acquired the Secret Key for that
WIN and cannot be transferred to any other WIN or vehicle.
PROGRAMMING THE PCM
CAUTION: Read all notes and cautions for programming procedures.
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Fog/Driving Lamp Relay: Description and Operation Rear Fog Lamp Relay - Operation
OPERATION
The rear fog lamp relay is an electromechanical switch that uses a low current input from the Front
Control Module (FCM) (located in the Integrated Power Module/IPM) to control a high current
output to the rear fog lamps. Within the relay are an electromagnetic coil, a movable contact and
two fixed contact points. A resistor is connected in parallel with the coil, and helps to dissipate
voltage spikes and electromagnetic interference that can be generated as the field of the relay coil
collapses.
The movable common supply contact point is held against the fixed normally closed contact point
by spring pressure. When the relay coil is energized, an electromagnetic field is produced by the
coil windings. This field draws the movable contact away from the normally closed contact, and
holds it against the normally open contact. When the relay coil is de-energized, spring pressure
returns the movable contact back against the normally closed contact.
The inputs and outputs of the rear fog lamp relay include:
- Common Supply Terminal (30) - The common feed terminal is connected to a fused B(+) circuit at
all times.
- Coil Ground Terminal (85) - The coil ground terminal is connected to a control output of the FCM
through a rear fog lamp relay control circuit. The FCM controls rear fog lamp operation by
controlling a ground path through this circuit.
- Coil Battery Terminal (86) - The coil battery terminal is connected to a fused B(+) circuit at all
times.
- Normally Open Terminal (87) - The normally open terminal is connected to the rear fog lamps
through a rear fog lamp relay output circuit and provides battery voltage to the rear fog lamps
whenever the relay is energized.
- Normally Closed Terminal (87A) - The normally closed terminal is not connected to any circuit in
this application, but will have battery voltage present whenever the relay is de-energized.
The rear fog lamp relay as well as the hard wired inputs and outputs of the relay may be diagnosed
using conventional diagnostic tools and procedures. Refer to the appropriate wiring information.
Adjustable Pedal Module - Removal
Pedal Positioning Module: Service and Repair Adjustable Pedal Module - Removal
REMOVAL
1. Disconnect and isolate the battery negative cable. 2. Remove the driver seat cushion/cover (2)
See: Body and Frame/Seats/Seat Cover/Service and Repair/Seat Cushion Cover - Removal. 3.
Pivot the module upward and disconnect the electrical connectors (1). 4. Unsnap the adjustable
pedals module (4) from the side brackets. 5. Pull the module rearward to remove it from the front of
the seat frame (3).
Page 69
Door Module: Service and Repair Door Module - Installation
INSTALLATION
1. Position module on door trim panel and install fasteners.
2. If applicable, first connect the black 12-way electrical connector (3), then connect the brown
20-way electrical connector (2). The connect the
black 10-way electrical connector to the module (1).
3. Install the door trim panel See: Body and Frame/Doors, Hood and Trunk/Doors/Front Door/Front
Door Panel/Service and Repair/Front Door Trim
Panel - Installation.
4. Connect the battery negative cable.
Occupant Restraint Controller - Description
Air Bag Control Module: Description and Operation Occupant Restraint Controller - Description
DESCRIPTION
The Occupant Restraint Controller (ORC) (1) is secured with three screws to a stamped steel
mounting bracket welded onto the top of the floor panel transmission tunnel adjacent to the park
brake mechanism and beneath the center floor console in the passenger compartment of the
vehicle. Concealed within a hollow in the center of the die cast aluminum ORC housing is the
electronic circuitry of the ORC which includes a microprocessor, an electronic impact sensor, an
electronic safing sensor, and an energy storage capacitor. A stamped metal cover plate is secured
to the bottom of the ORC housing with seven screws to enclose and protect the internal electronic
circuitry and components.
An arrow (2) printed on the label (3) on the top of the ORC housing provides a visual verification of
the proper orientation of the unit, and should always be pointed toward the front of the vehicle. The
ORC housing has integral mounting flanges (4) on the left front and rear corners and near the
center of the right side. The stamped metal cover plate has two integral locating pins on its lower
surface. Two molded plastic electrical connector receptacles (5) exit the forward facing side of the
ORC housing. These receptacles connect the ORC to the vehicle electrical system through two
dedicated take outs and connectors, one from the instrument panel wire harness and the second
from the body wire harness.
The impact sensor and safing sensor internal to the ORC are calibrated for the specific vehicle, and
are only serviced as a unit with the ORC. In addition, there are unique versions of the ORC for
vehicles with or without the optional side curtain airbags. The ORC cannot be repaired or adjusted
and, if damaged or ineffective, it must be replaced.
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Integrated Accessory Switch Assembly: Service and Repair Instrument Cluster Switch Pod Installation
Lower
LOWER
WARNING: To avoid serious or fatal injury on vehicles equipped with airbags, disable the
Supplemental Restraint System (SRS) before
attempting any steering wheel, steering column, airbag, seat belt tensioner, impact sensor, or
instrument panel component diagnosis or service. Disconnect and isolate the battery negative
(ground) cable, then wait two minutes for the system capacitor to discharge before performing
further diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper
precautions could result in accidental airbag deployment.
NOTE: There may be several different instrument panel lower switch pods available, depending
upon the optional equipment content of the
vehicle. Be certain that a replacement lower switch pod matches the optional equipment of the
vehicle into which it is being installed.
1. Position the lower instrument panel switch pod (1) to the back of the center bezel (3). 2. Install
and tighten the four screws (2) that secure the lower switch pod to the center bezel. Tighten the
screws securely. 3. Reconnect the wire harness connector to the back of the lower switch pod. 4.
Reinstall the center bezel onto the instrument panel. 5. Reconnect the battery negative cable.
Upper
UPPER
WARNING: To avoid serious or fatal injury on vehicles equipped with airbags, disable the
Supplemental Restraint System (SRS) before
attempting any steering wheel, steering column, airbag, seat belt tensioner, impact sensor, or
instrument panel component diagnosis or service. Disconnect and isolate the battery negative
(ground) cable, then wait two minutes for the system capacitor to discharge before performing
further diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper
precautions could result in accidental airbag deployment.
NOTE: There are several different instrument panel upper switch pods available, depending upon
the optional or required equipment content
of the vehicle. Be certain that a replacement upper switch pod matches the optional and required
equipment of the vehicle into which it is being installed.
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Trailer Lighting Module: Description and Operation Trailer Tow Module - Operation
OPERATION
The microprocessor within the Trailer Module (TM) contains the trailer tow lighting and electrical
control logic circuits. The module uses On-Board Diagnostics (OBD) and can communicate with
other electronic modules in the vehicle as well as with the diagnostic scan tool using the Controller
Area Network (CAN) data bus. This method of communication is also used for trailer tow lighting
and electrical control system diagnosis and testing through the 16-way data link connector located
on the driver side lower edge of the instrument panel.
Pre-programmed decision algorithms allow the TM microprocessor to determine the appropriate
trailer tow electrical control outputs based upon hard wired inputs from the brake lamp switch and
the ignition switch as well as from electronic message inputs received from the Front Control
Module (FCM) over the CAN data bus. When the programmed conditions are met, the TM provides
voltage to the appropriate trailer tow lighting and electrical control circuits. These circuits feed the
trailer circuits through dedicated trailer tow wiring in the vehicle and the trailer tow connector on the
trailer hitch platform.
The TM also continuously monitors the resistance through each of these electrical output circuits,
which allows the module logic circuits to detect problems and determine the system readiness. If
the module detects a monitored system fault, it sets a Diagnostic Trouble Code (DTC) and sends
the appropriate electronic messages to the FCM over the CAN data bus. The FCM responds to
these messages by increasing the flash rate of the turn signal circuits and transmitting electronic
messages to the ElectroMechanical Instrument Cluster (EMIC) (also known as the Cab
Compartment Node/CCN. The EMIC then provides feedback to the vehicle operator by increasing
the flash rate of the turn signal indicators and increasing the click rate of a solid state relay that
emulates the audible output of an electromechanical turn signal flasher.
The TM receives battery current on a fused B(+) circuit and a fused ignition switch output
(run-start) circuit through fuses in the Junction Block (JB). The module receives ground through a
ground circuit and take out of the body wire harness. These connections allow the module to be
operational regardless of the ignition switch position.
The hard wired inputs and outputs of the TM may be diagnosed using conventional diagnostic tools
and procedures. Refer to the appropriate wiring information. However, conventional diagnostic
methods will not prove conclusive in the diagnosis of the TM or the electronic controls or
communication between modules and other devices that provide some features of the trailer tow
lighting system. The most reliable, efficient, and accurate means to diagnose the TM or the
electronic controls and communication related to TM operation requires the use of a diagnostic
scan tool. Refer to the appropriate diagnostic information.
Page 179
Parking Lamp Relay: Description and Operation Parking Lamp Relay - Operation
OPERATION
The park lamp relay is an electromechanical switch that uses a low current input from the Front
Control Module (FCM) (located on the Integrated Power Module/IPM) to control a high current
output to the park lamps. Within the relay are an electromagnetic coil, a movable contact and two
fixed contact points. A resistor is connected in parallel with the coil, and helps to dissipate voltage
spikes and electromagnetic interference that can be generated as the field of the relay coil
collapses.
The movable common supply contact point is held against the fixed normally closed contact point
by spring pressure. When the relay coil is energized, an electromagnetic field is produced by the
coil windings. This field draws the movable contact away from the normally closed contact, and
holds it against the normally open contact. When the relay coil is de-energized, spring pressure
returns the movable contact back against the normally closed contact.
The inputs and outputs of the park lamp relay include:
- Common Supply Terminal (30) - The common feed terminal is connected to the park lamps
through a park lamp relay output circuit and provides battery voltage through the movable contact
to the park lamps whenever the relay is energized.
- Coil Ground Terminal (85) - The coil ground terminal is connected to a control output of the FCM
through a park lamp relay control circuit. The FCM controls park lamp operation by controlling a
ground path through this circuit.
- Coil Battery Terminal (86) - The coil battery terminal is connected to a fused B(+) circuit at all
times.
- Normally Open Terminal (87) - The normally open terminal is connected to a fused B(+) circuit at
all times.
- Normally Closed Terminal (87A) - The normally closed terminal is not connected to any input
circuit in this application, but will be connected to the park lamp relay output circuit through the
movable contact whenever the relay is de-energized.
The park lamp relay as well as the hard wired inputs and outputs of the relay may be diagnosed
using conventional diagnostic tools and procedures. Refer to the appropriate wiring information.
Page 166
Headlamp Alignment Control Module: Service and Repair Headlamp Leveling Module - Installation
INSTALLATION
WARNING: To avoid serious or fatal injury when working on the High Intensity Discharge (HID)
headlamp system, be certain to take the
proper precautions. The headlamp switch must be in the OFF position. Disconnect and isolate the
battery negative cable. There is a risk of death caused by contact with high voltage used in the HID
headlamps. There is a risk of explosion or fire caused by highly flammable materials in the vicinity
of damaged HID lighting elements. There is a risk of injury caused by exposure to Ultra Violet (UV)
light, a risk of burns caused by high component operating temperatures, a risk of mercury
poisoning through glass splinters produced by bursting HID lighting elements. There is also a risk
of poisoning caused by inhalation of mercury vapors and by toxic salts and mercury compounds
being ingested or coming into contact with the skin. Do not come into contact with parts that are
under high voltage. Persons with active electronic implants (e.g. heart pacemakers) must never
work on HID headlamps. Wear insulated safety shoes, safety glasses and protective gloves.
Remove flammable materials and ensure sufficient ventilation in the working area.
1. Position the Automatic Headlamp Leveling Module (AHLM) (2) close enough to the receptacle
on the bottom of the right front lamp unit housing
(4) to reconnect the front lamp unit wire harness connector to the connector receptacle on the
upward-facing side of the AHLM.
2. Position the AHLM into the receptacle on the bottom of the lamp housing. 3. Position the cover
plate (1) over the AHLM on the bottom of the lamp housing. 4. Install and tighten the four screws
that secure the cover plate and the AHLM to the lamp housing. Tighten the screws securely. 5.
Reinstall the right front lamp unit into the vehicle. See: Lighting and Horns/Headlamp/Headlamp
Bulb/Service and Repair/Front Lamp Unit -
Installation.
6. Reconnect the battery negative cable.
NOTE: On vehicles equipped with the optional High Intensity Discharge (HID) headlamps, when
the Automatic Headlamp Leveling Module
(AHLM) is replaced with a new unit, a diagnostic scan tool MUST be used to initialize the new
AHLM before the automatic headlamp leveling system can operate properly. Follow the steps
outlined in the diagnostic scan tool under the AHLM Electronic Control Unit (ECU), More Options,
System Tests menu item for Calibrate.
Page 324
Steering Mounted Controls Communication Module: Description and Operation Steering Column
Module - Operation
OPERATION
The microprocessor-based Steering Control Module (SCM) utilizes integrated circuitry to monitor
hard wired analog and multiplexed inputs from both the right and left multi-function switches. In
response to those inputs, the internal circuitry of the SCM allow it to transmit electronic message
outputs to the ElectroMechanical Instrument Cluster (EMIC) (also known as the Cab Compartment
Node/CCN) over the Local Interface Network (LIN) data bus.
In response to those inputs the internal circuitry and programming of the EMIC, which is also the
LIN master module in the vehicle, allow it to control and integrate many electronic functions and
features of the vehicle through both hard wired outputs and the transmission of electronic message
outputs to other electronic modules in the vehicle over the Controller Area Network (CAN) data
bus. See: Powertrain Management/Computers and Control Systems/Information Bus/Description
and Operation/Communication - Description.
The SCM is connected to both a fused B(+) circuit and a fused ignition switch output (run-start)
circuit. It receives a path to ground at all times. These connections allow it to remain functional
regardless of the ignition switch position. Any input to the SCM that controls a vehicle system
function that does not require that the ignition switch be in the ON position such as turning on the
lights, prompts the SCM to wake up and transmit on the LIN data bus.
The hard wired circuits between components related to the SCM may be diagnosed using
conventional diagnostic tools and procedures. Refer to the appropriate wiring information. The
wiring information includes wiring diagrams, proper wire and connector repair procedures, details of
wire harness routing and retention, connector pin-out information and location views for the various
wire harness connectors, splices and grounds.
However, conventional diagnostic methods will not prove conclusive in the diagnosis of the SCM or
the electronic controls or communication between modules and other devices that provide some
features of the SCM. The most reliable, efficient, and accurate means to diagnose the SCM or the
electronic controls and communication related to SCM operation requires the use of a diagnostic
scan tool. Refer to the appropriate diagnostic information.
Page 334
1. Raise and support the vehicle. 2. Remove the mounting screw (1) for the transponder (4). 3.
Disconnect the electrical connector (3) and remove the transponder (4) from the vehicle.
Description and Operation
Remote Switch: Description and Operation
OPERATION
The six switches in the two remote radio switch units are normally open, resistor multiplexed
momentary switches that are hard wired to the Instrument cluster through the clockspring. The
instrument cluster sends a five volt reference signal to both switch units on one circuit, and senses
the status of all of the switches by reading the voltage drop on a second circuit.
When the instrument cluster senses an input (voltage drop) from any one of the remote radio
switches, it sends the proper switch status messages on the Controller Area Network (CAN) data
bus to the radio. The electronic circuitry within the radio is programmed to respond to these remote
radio switch status messages by adjusting the radio settings as requested.
Page 293
3. Reconnect the instrument panel (3) (C2) and body (4) (C1) wire harness connectors to the ORC
(2) connector receptacles located on the forward
facing side of the module. Be certain that the latches and the red CPA locks on both connectors
are each fully engaged.
4. Reinstall the center console onto the top of the floor panel transmission tunnel (1). See: Body
and Frame/Interior Moulding /
Trim/Console/Service and Repair/Floor Console - Installation.
5. Do not reconnect the battery negative cable at this time. The Supplemental Restraint System
(SRS) verification test procedure should be performed
following service of any SRS component. See: Restraint Systems/Service and Repair.
Page 366
To exit the "lockout mode," place the ignition in the "RUN" position for one hour and then enter the
correct PIN. Be certain that all accessories are turned OFF and the left front door is open for the
entire hour. Also, monitor the battery state and connect a battery charger if necessary.
1. Connect a battery charger to the vehicle.
2. Connect the wiTECH scan tool.
NOTE:
Have the vehicle's PIN readily available before running the routine.
3. Starting at the "Vehicle View" screen, select "WCM/WIN".
4. Select "Miscellaneous Functions" tab.
5. Select "WIN Replaced".
6. Enter the PIN when prompted.
7. Follow the on screen instructions.
8. Continue with Section G. Frequency Operated Button Integrated Key (FOBIK) Transponders.
G. Program the Frequency Operated Button Integrated Key (FOBIK) Transponder
NOTE:
Each Frequency Operated Button Integrated Key (FOBIK) has a unique ID code that is assigned at
the time the key is manufactured. When a key is programmed into the WIN, the module learns the
transponder ID code and the transponder acquires the unique Secret Key ID code from the WIN.
NOTE:
When the WIN is replaced, a diagnostic scan tool must be used to program the FOBIK's
transponders so they will interface with the new WIN receiver. At least two FOBIK transponders
must be programmed before the vehicle can be operated.
1. Have the vehicle's PIN readily available before running the routine.
2. Place the ignition key in "RUN" position.
3. Starting at the "Vehicle View" screen, select "WCM/WIN".
4. Select the "Miscellaneous Functions" tab.
5. Select "Program Ignition Keys or Key FOBs".
6. Enter the PIN when prompted.
7. Follow the on screen instructions.
8. For vehicles equipped:
> with premium Tire Pressure Monitoring (TPM) system, continue with Section H. Program Spare
Tire Pressure Sensor.
> with only "Auto-Up" front window feature or with "Auto-Up" front window feature and Electronic
Stability Program (ESP), continue with Section I. Calibrate Door Module.
> with only Electronic Stability Program (ESP), continue with Section J. Calibrate the Steering
Angle Sensor (SAS)
> without premium Tire Pressure Monitoring (TPM) system, "Auto-Up" front window feature or
Electronic Stability Program (ESP) clear all Diagnostic Trouble Codes (DTC's), disconnect and
remove the wiTECH VCI pod, remove the battery charger and return the vehicle to the customer.
H. Program Spare Tire Pressure Sensor (WK/XK)
NOTE:
On vehicles equipped with a premium Tire Pressure Monitoring (TPM) system, when the Wireless
Ignition Node (WIN) is replaced, the WIN must be programmed with the ID number and location of
the spare tire pressure sensor mounted in the wheel of the spare tire. This is done by using Special
Tool CH9936 TPM-RKE Analyzer.
1. Determine the spare tire TPS pressure sensor ID number using the following procedure:
Page 142
Control Module HVAC: Description and Operation Blower Motor Power Module - Operation
OPERATION
The blower motor power module is connected to the vehicle electrical system through a dedicated
lead and connector of the HVAC wire harness. A second connector receptacle receives the wire
harness connector from the blower motor. The blower motor power module allows the
microprocessor-based automatic temperature control (ATC) A/C-heater control to calculate and
provide infinitely variable blower motor speeds based upon either manual blower switch input or the
ATC programming using a pulse width modulated (PWM) circuit strategy.
The PWM voltage is applied to a comparator circuit which compares the PWM signal voltage to the
blower motor feedback voltage. The resulting output drives the power module circuitry, which
provides a linear output voltage to change or maintain the desired blower speed.
The blower motor power module is diagnosed using a scan tool See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code
Tests and Associated Procedures
The blower motor power module cannot be adjusted or repaired and must be replaced if
inoperative or damaged.
Memory Seat Module - Removal
Memory Positioning Module: Service and Repair Memory Seat Module - Removal
REMOVAL
1. Disconnect and isolate the battery negative cable. 2. Remove the driver seat cushion/cover (2)
See: Body and Frame/Seats/Seat Cover/Service and Repair/Seat Cushion Cover - Removal. 3.
Pivot the module upward and disconnect the electrical connectors (1). 4. Unsnap the memory seat
module (4) from the side brackets. 5. Pull the module rearward to remove it from the front of the
seat frame (3).
Procedures
Engine Control Module: Procedures
TCM Quick Learn
QUICK LEARN - 4.7L/5.7L VEHICLES
The quick learn procedure requires the use of the scan tool.
This program allows the electronic transmission system to re-calibrate itself. This will provide the
proper transmission operation. The quick learn procedure should be performed if any of the
following procedures are performed:
- Transmission Assembly Replacement
- Transmission Control Module Replacement
- Solenoid Pack Replacement
- Clutch Plate and/or Seal Replacement
- Valve Body Replacement or Recondition
To perform the Quick Learn Procedure, the following conditions must be met:
- The brakes must be applied
- The engine speed must be above 500 rpm
- The throttle angle (TPS) must be less than 3 degrees
- The shift lever position must stay in PARK until prompted to shift to overdrive
- The shift lever position must stay in overdrive after the Shift to Overdrive prompt until the scan
tool indicates the procedure is complete
- The calculated oil temperature must be above 15.5° C (60° F) and below 93° C (200° F)
TCM Drive Learn
DRIVE LEARN - 4.7L/5.7L VEHICLES
When a transmission is repaired and a Quick Learn procedure has been performed on the
Transmission Control Module (TCM), the following Drive Learn procedure can be performed to fine
tune any shifts which are particularly objectionable.
NOTE: It is not necessary to perform the complete Drive Learn procedure every time the TCM is
Quick Learned. Perform only the portions
which target the objectionable shift.
LEARN A SMOOTH 1ST NEUTRAL TO DRIVE SHIFT
Perform this procedure only if the complaint is for a delayed or harsh shift the first time the
transmission is put into gear after the vehicle is allowed to set with the engine not running for at
least 10 minutes. Use the following steps to have the TCM learn the 1st N-D UD CVI.
NOTE: The transmission oil temperature must be between 27-43° C (80-110° F).
1. Start the engine only when the engine and ignition have been off for at least ten (10) minutes. 2.
With the vehicle at a stop and the service brake applied, record the 1st N-D UD CVI while
performing a Neutral to Drive shift. The 1st N-D UD
CVI accounts for air entrapment in the UD clutch that may occur after the engine has been off for a
period of time.
3. Repeat 1 and 2 until the recorded 1st N-D UD CVI value stabilizes.
NOTE: It is important that this procedure be performed when the transmission temperature is
between 27-43° C (80-110° F). If this
procedure takes too long to complete fully for the allowed transmission oil temperature, the vehicle
may be returned to the customer with an explanation that the shift will improve daily during normal
vehicle usage. The TCM also learns at higher oil temperatures, but these values (line pressure
correction values) are not available for viewing on the scan tool.
LEARN A SMOOTH NEUTRAL TO DRIVE GARAGE SHIFT
Perform this procedure if the complaint is for a delayed or harsh shift when the transmission is put
into gear after the vehicle has had its first shift. Use the following steps to have the TCM learn the
Norm N-D UD CVI.
NOTE: The transmission oil temperature must be between 27-43° C (80-110° F) to learn the UD
CVI. Additional learning occurs at
temperatures as low as -18° C (0° F) and as high as 93° C (200° F). This procedure may be
performed at any temperature that experiences poor shift quality. Although the UD CVI may not
change, shift quality should improve.
1. Start the vehicle engine and shift to drive. 2. Move the vehicle forward to a speed of at least 16
km/h (10 MPH) and come to a stop. This ensures no air is present in the UD hydraulic circuit.
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2. Unsnap the cluster bezel from the instrument panel (Figure 6).
3. Remove the knee bolster from the instrument panel (Figure 7).
4. Using a trim stick or another suitable wide flat-bladed tool, carefully pry the bezel around the
ignition switch until it unsnaps from the instrument
panel (Figure 7).
Intrusion Module - Description
Alarm Module: Description and Operation Intrusion Module - Description
DESCRIPTION
An intrusion module (1) is part of the premium version of the Vehicle Theft Alarm (VTA) in the
Vehicle Theft Security System (VTSS). The premium version of the VTA is only available in
vehicles built for certain markets, where the additional features offered by this system are required.
The intrusion module is located in the passenger compartment. This unit is designed to work in
conjunction with the intrusion sensor transmitter and intrusion sensor receiver to provide interior
motion detection and serves as the interface between the Front Control Module (FCM), the
ElectroMechanical Instrument Cluster (EMIC) (also known as the Cab Compartment Node/CCN)
and the alarm siren.
The intrusion module has two integral mounts (2) that are secured by nuts to two weld studs on the
right quarter inner panel just behind the right rear wheel house. The module is concealed beneath
the quarter inner trim panel. Concealed within the molded plastic housing is the circuitry of the
module, which includes a microprocessor. The module is connected through an integral connector
receptacle (3) to the vehicle electrical system by a take out and connector of the body wire
harness.
The intrusion module unit cannot be adjusted or repaired and, if ineffective or damaged, it must be
replaced.
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Control Module HVAC: Service and Repair Blower Motor Power Module - Installation
INSTALLATION
NOTE: LHD model shown. RHD model similar.
1. Position the blower motor power module (2) into the HVAC housing (4). 2. Install the two screws
(3) that secure the blower motor power module to the HVAC housing. Tighten the screws to 2 Nm
(17 in. lbs.). 3. Connect the two wire harness connectors (1) to the blower motor power module. 4.
On LHD models, install the glove box into the instrument panel See: Body and Frame/Interior
Moulding / Trim/Glove Compartment/Service and
Repair/Instrument Panel Glove Box - Installation.
5. On RHD models, install the instrument panel silencer onto the passenger side of the instrument
panel. 6. Reconnect the negative battery cable.
Page 8
Alarm Module: Description and Operation Intrusion Module - Operation
OPERATION
The microprocessor in the intrusion module contains the motion detection logic circuits and controls
all of the features of the premium version of the Vehicle Theft Alarm (VTA). The module uses
On-Board Diagnostics (OBD) and can communicate with other modules in the vehicle as well as
with a diagnostic scan tool using the Controller Area Network (CAN) data bus. This method of
communication is used by the module to communicate with the Front Control Module (FCM) and
the ElectroMechanical Instrument Cluster (EMIC) (also known as the Cab Compartment
Node/CCN). The module also communicates with the alarm siren over a dedicated serial bus
circuit.
The intrusion module microprocessor continuously monitors inputs from the intrusion sensor
transmitter and receiver as well as inputs from the EMIC and the alarm siren module. The module
energizes the intrusion sensor transmitter, which transmits ultrasonic signals into the vehicle cabin
through a transmit transducer, then monitors the current draw of the transmitter to detect problems
with the transmitter and transmitter circuits. The module also energizes the intrusion sensor
receiver, which listens to the ultrasonic signals through a receive transducer as they bounce off of
objects in the vehicle interior, then monitors the current draw of the receiver for data signals and to
detect problems with the receiver and receiver circuits. If an object is moving in the interior, a
detection circuit in the module senses this movement through the modulation of the returning data
signals from the receiver.
If movement is detected, the intrusion module sends an electronic message to the FCM over the
CAN data bus to flash the exterior lighting and sends another message to the alarm siren module
over the dedicated serial bus line to sound the siren. When the EMIC or FCM detect a breach in
the perimeter protection through a door, liftgate, flip-up glass, or hood ajar switch input, they send
an electronic message to the intrusion module and the module sends a message to the FCM to
flash the exterior lighting and a message to the alarm siren module to sound the siren. The module
also monitors message inputs from the alarm siren module for siren battery or siren input/output
circuit tamper alerts, and siren battery condition alerts, then sets active and stored Diagnostic
Trouble Codes (DTC) for any monitored system faults it detects. An active fault only remains for the
current ignition switch cycle, while a stored fault causes a DTC to be stored in memory by the
module. If a fault does not recur for 50 ignition cycles, the module will automatically erase the
stored DTC.
The intrusion module receives battery voltage on a fused B(+) circuit through a fuse in the Junction
Block (JB), and is grounded at all times through a hard wired remote ground point. These
connections allow the module to remain operational, regardless of the ignition switch position.
The hard wired circuits of the intrusion module may be diagnosed using conventional diagnostic
tools and procedures. Refer to the appropriate wiring information. However, conventional
diagnostic methods will not prove conclusive in the diagnosis of the intrusion module or the
electronic controls or communication between modules and other devices that provide some
features of the VTA. The most reliable, efficient, and accurate means to diagnose the intrusion
module or the electronic controls and communication related to intrusion module operation requires
the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.
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Body Control Module: Service and Repair Front Control Module - Installation
INSTALLATION
NOTE: If installing a new service part, remove the plastic cover from the original module and install
it on the new one.
1. Connect the Integrated Power Module (IPM) (3) to the Front Control Module (FCM) (1) by lining
up the electrical connector and pushing the two
together.
2. Install the four fasteners (2) securing the FCM (1) to the IPM (3). 3. Install the IPM, See: Power
and Ground Distribution/Power Distribution Module/Service and Repair/Integrated Power Module
(IPM) - Installation
.
4. Connect the battery negative cable.
Anti-Lock Brake System Module - Removal
Electronic Brake Control Module: Service and Repair Anti-Lock Brake System Module - Removal
REMOVAL
CAUTION: When removing ABM from HCU, be sure to completely separate the two components
(approximately 38 mm (1.5 in.) before
removing ABM. Otherwise, damage to the pressure sensor or Pump Motor connection may result
requiring HCU replacement. Do not to touch the sensor terminals on the HCU side or the contact
pads on the ABM side as this may result in contamination and issues in the future.
1. Remove the negative battery cable from the battery. 2. Install a brake pedal prop rod. 3. Siphon
the master cylinder.
4. Disconnect the HCU electrical connectors (5). 5. Remove the primary brake line at the master
cylinder. 6. Remove the primary brake line from the HCU (4). 7. Remove the secondary brake line
at the master cylinder. 8. Remove the secondary brake line at the HCU (4) 9. Remove the 4
chassis lines (3) at the HCU (4).
10. Remove the 1 mounting nut and 1 bolt holding the HCU bracket attachment to the vehicle. 11.
Remove the HCU (3) with the bracket (5) from the vehicle.
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Seat Heater Control Module: Description and Operation Heated Seat Module - Operation
OPERATION
FRONT SEAT HEATED SEAT SYSTEM
The front heated seat system operates on battery current received through a 20 amp fuse in the
Power Distribution Center (PDC). Fused ignition switch output circuits are used, so that the
systems will only operate when the ignition switch is in the ON position. The heated seat system
will turn off automatically whenever the ignition switch is turned to any position except On. If the
ignition switch is turned to the OFF position while a heated seat is on, the heated seat will remain
off after the engine is restarted until a front seat heated seat switch is depressed again. This
prevents the vehicles battery from being drained by the heated seat system.
The heated seat switches for the front row seats are located in the lower instrument panel switch
pod assembly. The lower switch pod assembly is mounted in the lower portion of the instrument
panel center stack. Amber Light Emitting Diodes (LEDs) in each switch indicate the level of heat in
use: Two LEDs are illuminated for high, one for low, and none for off. Pressing the switch once will
select high-level heating. Pressing the switch a second time will select low-level heating. Pressing
the switch a third time will shut the heating elements off. The switch LEDs are controlled by the
instrument cluster.
A Heated Seat Module is used to control the heated seat system. The module is secured to a
mounting bracket located under the right front seat. The module responds to heated seat switch
messages and ignition switch status inputs by controlling the 12v output to the seat heating
elements through integral solid-state relays.
When either of the front heated seat switches are depressed a resistance signal is sent to the
ElectroMechanical Instrument Cluster (EMIC) (also known as the Cab Compartment Node/CCN).
The instrument cluster receives this message via the Local Interconnect Network (LIN) data bus.
The instrument cluster then sends a message via the Controller Area Network (CAN) data bus to
the heated seat module, signaling the module to energize the heating element for the selected
seat.
The heated seat module energizes an integral solid-state relay, which supplies battery current to
the heating elements. Heated seats turn off after one hour of continuous operation. If high-level
heating is selected, the control system will remain at the high level for 30 minutes and then drop to
the low level for 30 minutes. Then it will turn off. At that time, the number of illuminated LEDs
changes from two to one, indicating the change.
The heated seat module is diagnosed using a scan tool and will automatically turn off the heating
elements if it detects an OPEN or LOW short in the heating element circuit See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code
Tests and Associated Procedures.
2ND ROW HEATED SEAT SYSTEM
The 2nd row heated seat system operates on battery current received through a 20 amp fuse in the
Power Distribution Center (PDC). Fused ignition switch output circuits are used, so that the
systems will only operate when the ignition switch is in the ON position. The heated seat system
will turn off automatically whenever the ignition switch is turned to any position except On. If the
ignition switch is turned to the OFF position while a heated seat is on, the heated seat will remain
off after the engine is restarted until a front seat heated seat switch is depressed again. This
prevents the vehicles battery from being drained by the heated seat system.
The heated seat switches for the 2nd row seats are located in the rear center floor console. Amber
Light Emitting Diodes (LEDs) in the top portion of each switch indicate the level of heat in use: Two
LEDs are illuminated for high, one for low, and none for off. Pressing the switch once will select
high-level heating. Pressing the switch a second time will select low-level heating. Pressing the
switch a third time will shut the heating elements off.
The 2nd row heated seat system utilizes the same heated seat module as the front heated seat
system. The module is secured to a mounting bracket located under the right front seat. The
module responds to heated seat switch messages and ignition switch status inputs by controlling
the 12v output to the seat heating elements through integral solid-state relays.
When either of the 2nd row heated seat switches are pressed a hard-wired resistance signal is sent
to the ElectroMechanical Instrument Cluster (EMIC) (also known as the Cab Compartment
Node/CCN). The instrument cluster then sends a message via the Controller Area Network (CAN)
data bus network to the heated seat module, signaling the module to energize the heating element
for the selected seat. Light Emitting Diodes (LED) in each switch indicate the level of heat in use.
The switch LEDs are controlled by the instrument cluster.
The heated seat module energizes an integral solid-state relay, which supplies battery current to
the heating elements. Heated seats turn off after one hour of continuous operation. If high-level
heating is selected, the control system will remain at the high level for 30 minutes and then drop to
the low level for 30 minutes. Then it will turn off. At that time, the number of illuminated LEDs
changes from two to one, indicating the change.
The heated seat module is diagnosed using a scan tool and will automatically turn off the heating
elements if it detects an OPEN or LOW short in the heating element circuit See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code
Tests and Associated Procedures.
Page 84
7. Check the supplier ID. Is the Supplier Marquardt?
a. No>>> Inspection is complete. Please refer to normal diagnostics for the customers concern.
b. Yes>>> Continue with step 8.
8. Now check the software version listed on the same page. Is the WIN software version lower than
10.02.01?
a. No>>> Inspection is complete check for other issues causing customer concern
b. Yes>>> Continue with the repair procedure step 9.
NOTE:
If this flash process is interrupted/aborted, the flash should be restarted.
9. Using the wiTECH Diagnostic Application for flashing a WIN is made available through the
wiTECH Diagnostic Application. For instructions select
the "HELP tab on upper portion of the wiTECH window, then "HELP CONTENTS. This will open
the Welcome to wiTECH Help screen were help topics can now selected.
10. Clear any DTC's that may have been set in other modules due to reprogramming. The wiTECH
application will automatically present all DTCs after
the flash and allow the tech to clear them.
POLICY: Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
FAILURE CODE:
Disclaimer:
This bulletin is supplied as technical information only and is not an authorization for repair.
Page 282
Main Relay (Computer/Fuel System): Service and Repair Auto Shutdown Relay - Installation
INSTALLATION
The ASD relay is located in the Power Distribution Center (PDC). Refer to label on power
distribution center cover for relay location.
1. Install relay to power distribution center. 2. Install cover to power distribution center.
Page 256
3. A locating pin (5) is used in place of one of the PCM mounting bolts. Pry clip (4) from pin (5). 4.
Remove two PCM mounting bolts (2), and remove PCM from vehicle. 5. Position ground strap (3)
to the side.
Powertrain Control Module - Installation
INSTALLATION
CAUTION: Certain ABS systems rely on having the Powertrain Control Module (PCM) broadcast
the Vehicle Identification Number (VIN)
over the bus network. To prevent problems of DTCs and other items related to the VIN broadcast, it
is recommend that you disconnect the ABS CAB (controller) temporarily when replacing the PCM.
Once the PCM is replaced, write the VIN to the PCM using a diagnostic scan tool. This is done
from the engine main menu. Arrow over to the second page to "1. Miscellaneous". Select "Check
VIN" from the choices. Make sure it has the correct VIN entered before continuing. When the VIN is
complete, turn off the ignition key and reconnect the ABS module connector. This will prevent the
setting of DTCs and other items associated with the lack of a VIN detected when you turn the key
ON after replacing the PCM.
CAUTION: Use a diagnostic scan tool to reprogram the new PCM with the vehicles original
identification number (VIN) and the vehicles
original mileage. If this step is not done, a Diagnostic Trouble Code (DTC) may be set.
1. Install clip (4) to pin (5). 2. Position PCM (1) to body and install two bolts (2). Be sure to position
ground strap (3) before installing bolt. 3. Tighten two bolts (2) to 4 Nm (35 in. lbs.).
Intrusion Module - Removal
Alarm Module: Service and Repair Intrusion Module - Removal
REMOVAL
1. Disconnect and isolate the battery negative cable. 2. Remove the trim from the inside of the right
quarter inner panel (2). See: Body and Frame/Interior Moulding / Trim/Trim Panel/Service and
Repair/Pillar Trim/C-Pillar Trim Panel - Removal.
3. Disconnect the take out of the body wire harness from the connector receptacle (4) on the
rearward side of the intrusion module (1). 4. Remove the two nuts (5) that secure the module to the
studs (3) on the quarter inner panel. 5. Remove the module from the studs on the quarter inner
panel.
Page 349
Use the following steps to have the TCM learn the Alt 2C CVI.
1. Accelerate the vehicle through 88 km/h (55 mph) at a steady 10-15 degree throttle opening and
perform multiple 4-5 upshifts. 2. Repeat 1 until the 4-5 shift become smooth and the Alt 2C CVI
become stable. There is a separate 2C volume used and learned for 4-5 shifts,
2CA. It is independent of the 2C CVI learned on 3-2 kick downs.
Page 362
4. Disconnect the WIN electrical connector.
5. If equipped, remove the WIN antenna connector.
6. Remove and discard the original WIN from the instrument panel opening.
7. Connect the WIN electrical connector to the new WIN receiver.
8. If equipped, connect the WIN antenna connector to the new WIN receiver.
9. Install the WIN receiver into the instrument panel.
10. Install the four WIN mounting screws and tighten securely (Figure 3).
11. Install the instrument panel knee bolster (Figure 1).
12. Connect the negative battery cable.
13. Continue with Section E. Obtaining Vehicle Personal Identification Number (PIN).
C. (LC/LX) Dodge Challenger/Charger & Chrysler 300 WIN Replacement
1. Disconnect the battery negative cable.
2. Remove the end cap trim panel (Figure 3).
3. Remove the two screws from the knee bolster (Figure 3).
4. Remove the knee bolster cover (Figure 3).
5. Remove the knee bolster steel reinforcement located behind the knee bolster cover.
6. Using a trim stick or equivalent, gently pry along the edge of the trim to remove the instrument
cluster trim (Figure 3).
Page 225
7. Reconnect the bottom side wire harness connectors to the connector receptacles on the JB.
8. Install the steering column opening cover (2). Install the screw and firmly push the top of the
panel inward to engage the top retaining clips. 9. Reconnect the battery negative cable.
Page 345
following:
- Shift lever position
- Throttle position
- Engine load
- Fluid temperature
- Software level
As driving conditions change, the TCM appropriately adjusts the shift schedule. Refer to the
following chart to determine the appropriate operation expected, depending on driving conditions.
Tire Pressure Monitoring (TPM) Transponder - Removal
Tire Pressure Monitor Receiver / Transponder: Service and Repair Tire Pressure Monitoring (TPM)
Transponder - Removal
Front
FRONT TRANSPONDER
1. Raise and support the vehicle. 2. Remove the wheel well housing cover (2).
3. Remove the mounting screw (1) for the transponder (2). 4. Disconnect the electrical connector
(3) and remove the transponder (2) from the vehicle.
Rear
REAR TRANSPONDER
Page 350
Control Module: Removal and Replacement
Transmission Control Module - Removal
4.7L/5.7L VEHICLES
The transmission control module is part of the powertrain control module. For the removal
procedure, See: Relays and Modules - Powertrain Management/Relays and Modules - Computers
and Control Systems/Engine Control Module/Service and Repair/Removal and
Replacement/Powertrain Control Module - Removal
Transmission Control Module - Installation
4.7L/5.7L VEHICLES
The transmission control module is part of the powertrain control module. For the installation
procedure, See: Relays and Modules - Powertrain Management/Relays and Modules - Computers
and Control Systems/Engine Control Module/Service and Repair/Removal and
Replacement/Powertrain Control Module - Installation
Page 219
procedure.
Page 365
5. Remove the four WIN mounting screws that secure the WIN to the instrument panel support
structure, (Figure 8).
6. If equipped, disconnect the remote start system antenna module coaxial cable connector from
the WIN connector receptacle.
7. Disconnect the instrument panel wire harness connector from the WIN connector receptacle.
8. Remove the WIN from the instrument panel.
9. Position the new WIN to the instrument panel.
10. Connect the instrument panel wire harness connector to the WIN connector receptacle.
11. If equipped, connect the remote start system antenna module coaxial cable connector to the
WIN connector receptacle.
12. Install and tighten the four screws that secure the WIN to the instrument panel support
structure. Tighten the screws securely.
13. Position the bezel around the ignition switch on the instrument panel, then press firmly and
evenly on the bezel until it snaps into place.
14. Install the knee bolster onto the instrument panel.
15. Install the cluster bezel onto the instrument panel.
16. Connect the battery negative cable.
17. Continue with Section E. Obtaining Vehicle Personal Identification Number (PIN).
E. Obtaining Vehicle Personal Identification Number (PIN)
1. Log onto the DealerCONNECT system.
2. Click on the "PARTS" tab.
3. In the "Reference Library" box, select "KEY CODE".
4. Enter the last eight digits of the Vehicle Identification Number (VIN).
5. Enter the requested data on the screen to obtain the key code.
6. Write down the PIN and then continue with Section F. Program the WIN Receiver.
F. Program the WIN Receiver
The secret key is an ID code that is unique to each WIN. This code is programmed and stored in
the WIN, the PCM, and each ignition key transponder chip. When the WIN is replaced, it is
necessary to program the Secret Key Code into the new module using a diagnostic scan tool.
NOTE:
Programming the WIN is done using a diagnostic scan tool and the vehicle's PIN to enter secure
access mode. If three attempts are made to enter secure access mode using an incorrect PIN,
secure access mode will be locked out for one hour.
Steering Column Module - Description
Steering Mounted Controls Communication Module: Description and Operation Steering Column
Module - Description
DESCRIPTION
This vehicle is equipped with a Steering Control Module (SCM) that is internal to the left
multi-function switch housing (2). The left (lighting) multi-function switch is located on the left side
of the steering column, just below the steering wheel. This switch is the primary control for the
interior and exterior lighting systems. The only visible components of the switch are the control
stalk (1), control knob and control sleeve that extend through the steering column shrouds on the
left side of the column. The remainder of the switch including its mounting provisions and electrical
connections are concealed beneath the shrouds.
The switch housing and controls are constructed of molded black plastic. A single screw (7)
through a mounting tab integral to the back of the switch housing, and a slide tab integral to the
bottom of the switch housing secure the switch to the mounting bracket integral to the clockspring
(3). A connector receptacle containing seven terminal pins is integral to the inboard end of the
switch housing and connects the SCM through a jumper wire harness (5) directly to the right
(wiper) multi-function switch (6). A second connector receptacle containing four terminal pins is
integral to the back of the switch housing and connects the SCM to the vehicle electrical system
through a dedicated takeout and connector of the instrument panel wire harness.
The SCM cannot be adjusted or repaired. If ineffective or damaged the entire left multi-function
switch must be replaced. See: Lighting and Horns/Sensors and Switches - Lighting and
Horns/Combination Switch/Service and Repair/Left Multifunction Switch - Removal. The
clockspring (with the multi-function switch mounting bracket), the left multi-function switch (with the
SCM), the right multi-function switch and the jumper wire harness are each available for separate
service replacement.
Park Assist Module - Description
Parking Assist Control Module: Description and Operation Park Assist Module - Description
DESCRIPTION
The Park Assist Module (1) is secured on the inboard side of a molded plastic tray-like mounting
plate (4) located on the rear floor panel (3) under the left rear seat cushion. The outboard side of
this mounting plate also secures the Final Drive Control Module (FDCM) (5) on vehicles that are so
equipped. Both modules are connected to the vehicle electrical system through dedicated take outs
and connectors of the underbody wire harness (2).
Concealed within the molded plastic park assist module housing (1) is a microprocessor and the
other electronic circuitry of the module. The module housing is sealed to enclose and protect the
internal electronic circuitry. The module software is flash programmable.
There are four mounting tabs (2 and 3) integral to the module housing that secure the module
through two slots and two latch features integral to the mounting plate. Two connector receptacles
(4) containing terminal pins that connect the module to the vehicle electrical system are integral to
the one side of the housing. One of the receptacles is utilized in vehicles equipped with only the
rear park assist system, while both receptacles are used on vehicles equipped with both the front
and rear park assist systems.
The park assist module cannot be adjusted or repaired and, if damaged or ineffective, it must be
replaced.
Starter Relay - Description
Starter Relay: Description and Operation Starter Relay - Description
DESCRIPTION
The starter relay is an electromechanical device that switches battery current to the pull-in coil of
the starter solenoid when the ignition switch is turned to the Start position. The starter relay is
located in the Power Distribution Center (PDC) in the engine compartment. See the power
distribution center cover for relay identification and location.
The starter relay is a International Standards Organization (ISO) relay. Relays conforming to ISO
specifications have common physical dimensions, current capacities, terminal patterns, and
terminal functions.
The starter relay cannot be repaired or adjusted. If faulty or damaged, it must be replaced.
Keyless Systems - Intermittently Inoperative
Power Distribution Module: All Technical Service Bulletins Keyless Systems - Intermittently
Inoperative
NUMBER: 08-010-10
GROUP: Electrical
DATE: May 14, 2010
THE wiTECH DIAGNOSTIC APPLICATION IS THE PREFERRED METHOD FOR FLASHING
ECUs.
HELP USING THE wiTECH DIAGNOSTIC APPLICATION FOR FLASHING AN ECU IS
AVAILABLE BY SELECTING "HELP" THEN "HELP CONTENTS" AT THE TOP OF THE wiTECH
DIAGNOSTIC APPLICATION WINDOW.
THE wiTECH SOFTWARE LEVEL MUST BE AT RELEASE 10.04 OR HIGHER TO PERFORM
THIS PROCEDURE.
StarMOBILE DESKTOP CLIENT MAY ALSO BE USED TO PERFORM THIS PROCEDURE.
SUBJECT: Flash: WIN Module For Intermittent RKE Functions
OVERVIEW: This bulletin involves flash reprogramming the Wireless Ignition Node (WIN) with new
software.
MODELS:
2010 (DS) Ram Truck 1500
2010 (JC) Journey
2010 (LC) Challenger
2010 (LE) International 300 or Charger
2010 (LX) 300 and/or Charger
2010 (WK) Grand Cherokee
2010 (WH) International Grand Cherokee
2010 (XK) Commander
2010 (XH) International Commander
SYMPTOM/CONDITION: Customer may experience intermittent FOBIK operating characteristics.
Dealers are required to verify the manufacturer of the Wireless Ignition Node Module (WIN) and if
necessary, Flash the WIN with updated software.
DIAGNOSIS: If the vehicle operator describes the above Symptom/Condition, perform the Repair
Procedure.
REPAIR PROCEDURE: Check manufacturer of WIN Module
1. Using the wiTECH Diagnostic Application verify the WIN module is manufactured by Marquardt
2. Click on the reports tab on the top of the main page.
3. Select Run/View Reports.
4. Select ECU Details report.
5. Click on the arrow key to run the report.
6. Scroll to the bottom to find the WIN section.
Description and Operation
Pedal Positioning Switch: Description and Operation
DESCRIPTION
The adjustable pedals switch (2) is located to the left of the steering column (4) and housed within
a cubby bin (3).
Pressing the switch (2) will either move the pedals forward away from you or rearward toward you.
Page 9
Alarm Module: Description and Operation Sentry Key Immobilizer Module (SKIM) - Description
DESCRIPTION
For a description of the WIN, See: Powertrain Management/Ignition System/Sensors and Switches
- Ignition System/Ignition Switch/Description and Operation/Wireless Ignition Node Receiver Description
The WIN cannot be adjusted or repaired, but is flash update capable. If ineffective or damaged the
entire WIN must be replaced. See: Powertrain Management/Ignition System/Sensors and Switches
- Ignition System/Ignition Switch/Service and Repair/Wireless Ignition Node Receiver - Removal.
Page 232
Body Control Module: Description and Operation Front Control Module - Operation
OPERATION
As messages are sent over the Controller Area Network (CAN) bus circuit, the Front Control
Module (FCM) reads these messages and controls power to some of the vehicles electrical
systems by completing the circuit to ground (low side driver) or completing the circuit to 12 volt
power (high side driver). The following functions are controlled by the FCM:
- Front turn signals
- Turn signal and tail lamps
- Front and rear hazard warning lamps
- Headlamps
- Fog Lamps
- Daytime running lamps - if equipped
- Horn
- Windshield wiper and washer systems
- Trailer tow wiring output
- Power Accessory Delay
- Smart Power Accessory Delay
- Manual adjustable pedals
- Hydraulic cooling fan
- Sensor monitoring (ambient, battery voltage, brake pedal position, and hood ajar - if equipped)
The FCM provides the following features for the above function:
- It flashes lamps in response to turn signal, Remote Keyless Entry and Vehicle Theft Security
Alarm inputs, See: Accessories and Optional Equipment/Driver/Vehicle Information
Display/Description and Operation/Electronic Vehicle Information Center - Operation for additional
information on customer programmable features.
- It sounds the horn in response to Remote Keyless Entry and Vehicle Theft Security Alarm inputs,
See: Accessories and Optional Equipment/Driver/Vehicle Information Display/Description and
Operation/Electronic Vehicle Information Center - Operation for additional information on customer
programmable features.
- It turns off the horn in the event of excessively long operation that could otherwise damage the
horn.
- It minimized voltage variations to the headlamps to extend bulb life.
- If the headlamps are left on, it automatically turns them off after eight minutes to protect the
battery from discharge.
- It operates the high-beam headlamps at reduced intensity by pulse-width modulation of the power
supply to provide the daytime running lamps.
- It provides the variable delay intermittent windshield wiper feature and the vehicle speed sensitive
windshield wiper delay variation.
- It acts as a gateway between the CAN-C network for critical powertrain and anti-lock brake
systems and the CAN-B network for body and interior modules as well as the CAN-D network. For
example it collects ambient temperature data and relays it to the PCM.
Door Module - Description
Door Module: Description and Operation Door Module - Description
DESCRIPTION
There are two Door Modules, Driver Door Module (DDM), and Passenger Door Module (PDM)
(these are sometimes referred to as Memory Mirror Module) within the memory system. One is
located in the driver door and one in the passenger door, just behind the door trim panel. The
memory mirror modules also act as an interface in each door for electrical functions (door lock
switches and door ajar switches).
The modules send a bus message to the power mirrors to adjust them to a preset position when a
memory recall request has been made.
The Memory System makes available for immediate recall personalized preferences of the
following:
- Automatic temperature control settings.
- Outside mirror positions.
- Power adjustable brake and accelerator pedal position.
- Power seat horizontal, vertical, recliner, and easy entry positions.
- Radio push button station selections.
The major components of the Memory System are:
- Memory Selector Switch - located in the driver door trim panel.
- Driver Door Module (DDM) - located in the driver door, behind the trim panel.
- Passenger Door Module (PDM) - located in the passenger door, behind the trim panel.
- Sentry Key Remote Entry Module (SKREEM) - located at ignition key cylinder.
- Remote Keyless Entry (RKE) Transmitter - located with ignition key.
- Memory Seat Module (MSM) - located underneath the driver seat and also controls the Adjustable
Pedals.
- Radio - located in the instrument panel center stack.
- Automatic Temperature Control (ATC) - located in the instrument panel center stack.
The memory recall is available at the press of a button on the drivers door trim panel or, by using
the Remote Keyless Entry (RKE) transmitter if it is programmed to trigger the recall.
Radio settings include up to 20 push button presets (10 AM and 10 FM), and the last station
selection, even if it is not one of the 20 preset selections.
Power Distribution Center (PDC) - Description
Relay Box: Description and Operation Power Distribution Center (PDC) - Description
DESCRIPTION
The electrical current distributed throughout this vehicle is directed through the Power Distribution
Center (PDC) (1) and Integrated Power Module (IPM) (2). The power distribution center is located
in the left front corner of the engine compartment, between the IPM and the brake master cylinder.
The power distribution center houses maxi-type cartridge fuses, which replace most in-line fusible
links. Some fusible links still exist in the electrical harness depending on powertrain combination.
The power distribution center also houses blade-type mini fuses, and International Standards
Organization (ISO) relays.
The power distribution center housing is secured in the engine compartment at three points.
Integral mounts on both sides of the power distribution center housing engage and latch to
stanchions that are integral to the molded plastic support bracket. The power distribution center is
integral to the headlamp and dash wire harness, which exits from the bottom of the power
distribution center housing. The power distribution center housing has a molded plastic cover that
includes two integral latches and pivot hooks that snap over a hinge pin on the side of the power
distribution center housing. The power distribution center cover is easily opened or removed for
service access and has a convenient fuse and relay layout map integral to the inside surface of the
cover to ensure proper component identification.
The power distribution center cannot be repaired and is only serviced as a unit with the headlamp
and dash wire harness. If the power distribution center main housing unit, fuse wedges or the bus
bars are inoperative or damaged, the complete headlamp and dash wire harness unit must be
replaced.
Page 361
Additional Information
If you have any questions or need assistance in completing this action, please contact your Service
and Parts District Manager.
Customer Services Field Operations Chrysler Group LLC
A. Inspect Win Receiver Operation (All Models)
1. Insert FOBIK in the WIN receiver.
2. Place the ignition in the "RUN" position.
3. Shift the gear shift lever from the "PARK" position to the "NEUTRAL" position.
4. With the gear shifter in the "NEUTRAL" position, attempt to turn the FOBIK counterclockwise to
the "OFF" position and remove the FOBIK from the WIN receiver.
> If the FOBIK can be removed from the WIN receiver with the gear shift lever in "NEUTRAL,"
continue with one of the following sections:
> B. (DS/DJ/D2) Ram 1500/2500/3500 Truck WIN Replacement
> C. (LC/LX) Dodge Challenger/Charger & Chrysler 300 WIN
Replacement
> D. (WK/XK) Jeep Grand Cherokee & Commander WIN Replacement
> If the FOBIK cannot be removed with the gear shift lever in "NEUTRAL,"continue with Step 5 of
this procedure.
5. Place the gear shift lever in the "PARK" position and remove the FOBIK from the WIN receiver.
6. Repeat Steps 1 through 4 of this procedure 49 times.
> If the FOBIK can be removed while the gear shift lever is in the "NEUTRAL" position during any
of the 50 test cycles, replace the WIN receiver.
> If the FOBIK cannot be removed while the gear shift is in the "NEUTRAL" position after 50 test
cycles, return the vehicle to the customer.
NOTE:
Only one FOBIK needs to be used to perform this test. There is no need to cycle test both FOBIK's
50 times.
B. (DS/DJ/D2) Ram 1500/2500 Truck WIN Replacement
1. Disconnect and isolate the battery negative cable.
2. Remove the instrument panel knee bolster (Figure 1).
3. Remove the four Wireless Ignition Node (WIN) receiver mounting screws (Figure 2).
Page 442
Parking Assist Distance Sensor: Service and Repair Park Assist Sensor - Installation
Front
FRONT
NOTE: The park assist sensors (3) and the sensor spacers (2) are each available for separate
service replacement. The sensor brackets (1) are
bonded and integral to the back side of the front bumper fascia (4).
1. Engage the O-ring spacer (2) around the circumference of the sensor (3) membrane protrusion.
NOTE: Production and all service replacement O-ring spacers are tapered. The wide side (base) of
the O-ring should be seated against the
sensor housing and the narrow side should be oriented toward the outer surface of the sensor
membrane and the front fascia.
2. Align and insert the sensor into the sensor bracket (1) on the back of the front bumper fascia (4)
until the bracket latch features are fully engaged
over the top and bottom tabs of the sensor. Be certain that the sensor membrane is flush with the
outer surface of the fascia.
NOTE: Be certain that each sensor membrane is properly centered in the openings of the front
fascia and that the O-ring spacers are not
pinched. Improper centering or pinched O-rings can be detrimental to proper park assist sensor
operation.
3. From the back of the fascia, reconnect the wire harness connector to the sensor connector
receptacle. 4. Reinstall the bumper fascia onto the front of the vehicle. See: Body and
Frame/Bumper/Front Bumper/Front Bumper Cover / Fascia/Service and
Repair/Front Bumper Fascia - Installation.
5. Reconnect the battery negative cable.
Rear
REAR
NOTE: The park assist sensors, the sensor O-ring spacers and the sensor brackets are each
available for separate service replacement. The
following service procedure can be used for reassembling any or all of these components to the
rear bumper fascia.
Recall - Wireless Ignition Node Receiver
Technical Service Bulletin # K08 Date: 100816
Recall - Wireless Ignition Node Receiver
August 2010
Dealer Service Instructions for:
Safety Recall K08 Wireless Ignition Node Receiver
Models
2010 (DS) Ram Truck (1500 Series)
NOTE:
This recall applies only to the above vehicles built at Warren Truck Assembly Plant ("S" in the 11th
VIN Position) equipped with an automatic transmission (sales codes DGQ, DGV or DF9) from
January 11, 2010 through February 4, 2010 (MDH 011106 through 020411).
2010 (DS) Ram Truck (1500 Series) (DJ) Ram Truck (2500 Series) (D2) Ram Truck (3500 Series)
NOTE:
This recall applies only to the above vehicles built at Saltillo Assembly Plant ("G" in the 11th VIN
Position) equipped with an automatic transmission (sales codes DGQ, DGV, DG7 or DF9) from
January 6, 2010 through February 16, 2010 (MDH 010606 through 021616).
2010 (LC) Dodge Challenger (LX) Chrysler 300
NOTE:
This recall applies only to the above vehicles equipped with an automatic transmission (sales
codes DGJ or DGV) built from January 18, 2010 through March 11, 2010 (MDH 011807 through
031113).
2010 (WK) Jeep(R) Cherokee (XK) Jeep(R) Commander
NOTE:
This recall applies only to the above vehicles equipped with an automatic transmission (sales
codes DGJ or DGQ) built from January 8, 2010 through February 13, 2010 (MDH 010804 through
021307).
IMPORTANT:
Many of the vehicles within the above build period have already been inspected or repaired and,
therefore, have been excluded from this recall.
IMPORTANT:
Some of the involved vehicles may be in dealer new vehicle inventory. Federal law requires you to
complete this recall service on these vehicles before retail delivery. Dealers should also consider
this requirement to apply to used vehicle inventory and should perform this recall on vehicles in for
service. Involved vehicles can be determined by using the VIP inquiry process.
Subject
The Wireless Ignition Node (WIN) receiver on about 37,000 of the above vehicles may experience
a condition where the Frequency Operated Button Integrated Key (FOBIK) may be removed prior
to placing the automatic transmission gear shift lever in the "PARK" position. This could result in
unintended vehicle movement and cause a crash without warning.
Repair
The Wireless Ignition Node receiver must be inspected and replaced if necessary. The new WIN
must be programmed and all FOBIK transponders must be programmed so they are able to
interface with the new WIN receiver. Vehicles equipped with a premium Tire Pressure Monitoring
(TPM) system (sales code XGM) must also have the spare tire pressure sensor identification
number and location programmed into the new WIN receiver.
NOTE:
Be sure to ask the customer to bring in all FOBIK transponders for the vehicle. At least two FOBIK
transponders must be programmed before the vehicle can be operated.
Page 90
Memory Positioning Module: Testing and Inspection
MEMORY SEAT MODULE
In order to obtain conclusive testing of the memory system, the Controller Area Network (CAN)
data bus, and all of the electronic modules that provide inputs to, or receive outputs from the
memory system components must be checked. Any diagnosis of the memory system/module
should begin with, the use of a scan tool and the appropriate diagnostic service information.
Refer to the appropriate wiring information for complete circuit schematic or connector pin-out
information.
NOTE: Vehicles equipped with the memory/heated seat option utilize a low voltage cut-off feature.
This feature turns off the 12v power to the
power seat system anytime vehicle voltage is below 11.7v. Be certain to check the vehicle
electrical system for proper voltage anytime the power seat system appears inoperative.
Before any testing of the power seat system is attempted, the battery should be fully-charged.
Blower Motor Power Module - Description
Control Module HVAC: Description and Operation Blower Motor Power Module - Description
DESCRIPTION
A blower motor power module is used on this model when it is equipped with the automatic
temperature control (ATC) heating-A/C system. Models equipped with the manual temperature
control (MTC) heating-A/C system use a blower motor resistor, instead of the blower motor power
module See: Heating and Air Conditioning/Blower Motor Resistor/Description and
Operation/Blower Motor Resistor - Description.
The blower motor power module is mounted to the rear of the HVAC housing, directly behind the
glove box. The blower motor power module consists of a molded plastic mounting plate with two
integral connector receptacles (1). Concealed behind the mounting plate is the power module
electronic circuitry and a large finned heat sink (2).
The blower motor power module is accessed for service by removing the glove box.
Page 303
7. Check the supplier ID. Is the Supplier Marquardt?
a. No>>> Inspection is complete. Please refer to normal diagnostics for the customers concern.
b. Yes>>> Continue with step 8.
8. Now check the software version listed on the same page. Is the WIN software version lower than
10.02.01?
a. No>>> Inspection is complete check for other issues causing customer concern
b. Yes>>> Continue with the repair procedure step 9.
NOTE:
If this flash process is interrupted/aborted, the flash should be restarted.
9. Using the wiTECH Diagnostic Application for flashing a WIN is made available through the
wiTECH Diagnostic Application. For instructions select
the "HELP tab on upper portion of the wiTECH window, then "HELP CONTENTS. This will open
the Welcome to wiTECH Help screen were help topics can now selected.
10. Clear any DTC's that may have been set in other modules due to reprogramming. The wiTECH
application will automatically present all DTCs after
the flash and allow the tech to clear them.
POLICY: Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
FAILURE CODE:
Disclaimer:
This bulletin is supplied as technical information only and is not an authorization for repair.
Auto Shutdown Relay - Description
Main Relay (Computer/Fuel System): Description and Operation Auto Shutdown Relay Description
DESCRIPTION
The 5-pin, 12-volt, Automatic Shutdown (ASD) relay is located in the Power Distribution Center
(PDC). Refer to label on power distribution center cover for relay location.
Page 432
1. Position the upper instrument panel switch pod (2) to the back of the center bezel (1). 2. Install
and tighten the four screws (3) that secure the upper switch pod to the center bezel. Tighten the
screws securely. 3. Reconnect the wire harness connector to the back of the upper switch pod. 4.
Reinstall the center bezel onto the instrument panel. 5. Reconnect the battery negative cable.
Integrated Power Module (IPM) - Description
Power Distribution Module: Description and Operation Integrated Power Module (IPM) - Description
DESCRIPTION
The Integrated Power Module (IPM) (2) is a combination of a printed circuit board based module
that contains fuses and relays and the Front Control Module (FCM) (3). The FCM contains
electronics that control the IPM as well as other vehicle functions. The IPM connects directly to the
battery positive via a stud located on top of the unit. The ground connection is via electrical
connectors. The IPM provides the primary means of voltage distribution and protection for many
vehicle systems.
The IPM (2) is located in the engine compartment, next to the battery (5) and in front of the Power
Distribution Center (PDC) (1). It is secured to a bracket with three locating slots that snap onto the
bracket tabs holding it securely in place. The printed circuit board portion of the IPM cannot be
repaired and must be replaced if inoperative or damaged, See: Service and Repair/Integrated
Power Module (IPM) - Removal.
Page 131
Blower Motor Relay: Service and Repair Blower Motor Relay - Installation
INSTALLATION
NOTE: LHD gasoline model shown. Diesel and RHD models similar.
1. Position the blower motor relay (2) into the proper receptacle of the power distribution center
(PDC) (1). 2. Align the blower motor relay terminals with the terminal cavities in the power
distribution center receptacle and push down firmly on the relay
until the terminals are fully seated.
3. Close the cover of the power distribution center. 4. Reconnect the negative battery cable.
Front Control Module - Description
Body Control Module: Description and Operation Front Control Module - Description
DESCRIPTION
CAUTION: Do not exchange the Front Control Module with the module from another vehicle.
Multiple vehicle module configurations may be
altered. Use only approved service parts when replacing the module or exchanging the module for
diagnostic purposes.
The Front Control Module (FCM) (3) is a micro controller based module located in the left front
corner of the engine compartment. The FCM mates directly to the Integrated Power Module
(IPM)(2). The IPM connects directly to the battery and provides the primary means of circuit
protection and power distribution for many of the vehicle electrical systems. The FCM controls
power to some of these vehicle systems electrical and electromechanical loads based on inputs
received from hard wired switch inputs and data received on the Controller Area Network (CAN)
data bus circuit.
Page 123
Electronic Brake Control Module: Service and Repair Anti-Lock Brake System Module - Installation
INSTALLATION
CAUTION: When removing ABM from HCU, be sure to completely separate the two components
(approximately 38 mm (1.5 in.) before
removing ABM. Otherwise, damage to the pressure sensor or Pump Motor connection may result
requiring HCU replacement. Do not to touch the sensor terminals on the HCU side or the contact
pads on the ABM side as this may result in contamination and issues in the future.
NOTE: If the ABM is being replaced with a new ABM is must be reprogrammed with the use of a
scan tool.
1. Install new seals between the ABM and HCU. 2. Install the ABM (1) to the HCU (2).
3. Install the 3 ABM (1) mounting bolts to the HCU (2) if removed tighten mounting bolts to 12 Nm
(9 ft. lbs.).
Front Fog Lamp Relay - Description
Fog/Driving Lamp Relay: Description and Operation Front Fog Lamp Relay - Description
DESCRIPTION
The front fog lamp relay is a conventional International Standards Organization (ISO) micro relay.
Relays conforming to the ISO specifications have common physical dimensions, current capacities,
terminal patterns, and terminal functions. This relay is contained within a small, rectangular,
molded plastic housing and is connected to all of the required inputs and outputs through five
integral male spade-type terminals that extend from the relay base plate.
The front fog lamp relay is located in the Integrated Power Module (IPM) in the engine
compartment near the battery. Refer to the layout label on the underside of the IPM cover for
specific relay cavity assignment information.
The front fog lamp relay cannot be adjusted or repaired and, if ineffective or damaged, the unit
must be replaced.
Parking Lamp Relay - Description
Parking Lamp Relay: Description and Operation Parking Lamp Relay - Description
DESCRIPTION
The park lamp relay is a conventional International Standards Organization (ISO) micro relay.
Relays conforming to the ISO specifications have common physical dimensions, current capacities,
terminal patterns, and terminal functions. This relay is contained within a small, rectangular,
molded plastic housing and is connected to all of the required inputs and outputs through five
integral male spade-type terminals that extend from the relay base plate.
The park lamp relay is located in the Integrated Power Module (IPM) in the engine compartment
near the battery. Refer to the layout label on the underside of the IPM cover for specific relay cavity
assignment information.
The park lamp relay cannot be adjusted or repaired and, if ineffective or damaged, the unit must be
replaced.
Page 257
4. Check pin connectors in PCM. Also check the 38-way connectors (2) for corrosion or damage.
Repair as necessary. 5. Carefully plug the 38-way connectors (2) into PCM (1). 6. Connect
negative battery cable. 7. Use a diagnostic scan tool to reprogram new PCM with vehicles original
Identification Number (VIN) and original vehicle mileage. If this
step is not done, a Diagnostic Trouble Code (DTC) may be set.
Page 262
Main Relay (Computer/Fuel System): Description and Operation Auto Shutdown Relay - Operation
PCM Output
PCM OUTPUT
The ASD relay supplies battery voltage (12+ volts) to the fuel injectors and ignition coil(s). With
certain emissions packages it also supplies 12-volts to the oxygen sensor heating elements.
The ground circuit for the coil within the ASD relay is controlled by the Powertrain Control Module
(PCM). The PCM operates the ASD relay by switching its ground circuit on and off.
The ASD relay will be shut-down, meaning the 12-volt power supply to the ASD relay will be
de-activated by the PCM if:
- The ignition key is left in the ON position. This is if the engine has not been running for
approximately 1.8 seconds.
- There is a crankshaft position sensor signal to the PCM that is lower than pre-determined values.
ASD Sense - PCM Input
ASD SENSE - PCM INPUT
A 12 volt signal at this input indicates to the PCM that the ASD has been activated. The relay is
used to connect the oxygen sensor heater element, ignition coil and fuel injectors to 12 volt +
power supply.
This input is used only to sense that the ASD relay is energized. If the Powertrain Control Module
(PCM) does not see 12 volts at this input when the ASD should be activated, it will set a Diagnostic
Trouble Code (DTC).
Keyless Systems - Intermittently Inoperative
Keyless Entry Module: All Technical Service Bulletins Keyless Systems - Intermittently Inoperative
NUMBER: 08-010-10
GROUP: Electrical
DATE: May 14, 2010
THE wiTECH DIAGNOSTIC APPLICATION IS THE PREFERRED METHOD FOR FLASHING
ECUs.
HELP USING THE wiTECH DIAGNOSTIC APPLICATION FOR FLASHING AN ECU IS
AVAILABLE BY SELECTING "HELP" THEN "HELP CONTENTS" AT THE TOP OF THE wiTECH
DIAGNOSTIC APPLICATION WINDOW.
THE wiTECH SOFTWARE LEVEL MUST BE AT RELEASE 10.04 OR HIGHER TO PERFORM
THIS PROCEDURE.
StarMOBILE DESKTOP CLIENT MAY ALSO BE USED TO PERFORM THIS PROCEDURE.
SUBJECT: Flash: WIN Module For Intermittent RKE Functions
OVERVIEW: This bulletin involves flash reprogramming the Wireless Ignition Node (WIN) with new
software.
MODELS:
2010 (DS) Ram Truck 1500
2010 (JC) Journey
2010 (LC) Challenger
2010 (LE) International 300 or Charger
2010 (LX) 300 and/or Charger
2010 (WK) Grand Cherokee
2010 (WH) International Grand Cherokee
2010 (XK) Commander
2010 (XH) International Commander
SYMPTOM/CONDITION: Customer may experience intermittent FOBIK operating characteristics.
Dealers are required to verify the manufacturer of the Wireless Ignition Node Module (WIN) and if
necessary, Flash the WIN with updated software.
DIAGNOSIS: If the vehicle operator describes the above Symptom/Condition, perform the Repair
Procedure.
REPAIR PROCEDURE: Check manufacturer of WIN Module
1. Using the wiTECH Diagnostic Application verify the WIN module is manufactured by Marquardt
2. Click on the reports tab on the top of the main page.
3. Select Run/View Reports.
4. Select ECU Details report.
5. Click on the arrow key to run the report.
6. Scroll to the bottom to find the WIN section.
Page 171
Headlamp Igniter Module: Description and Operation High Intensity Discharge Ballast - Operation
OPERATION
The electronic ballast module operates on battery current and ground received directly from the
Front Control Module (FCM). Each module controls operation of the High Intensity Discharge (HID)
igniter and lighting element for the front lamp unit on which it is installed. The FCM monitors
electronic message inputs received from the ElectroMechanical Instrument Cluster (EMIC) (also
known as the Cabin Compartment Node/CCN) over the Controller Area Network (CAN) data bus to
determine the proper control outputs to the electronic ballast module, which then provides a
controlled voltage to operate the HID lamp igniter as appropriate.
The EMIC monitors electronic switch status messages received from the Steering Control Module
(SCM) over the Local Interface Network (LIN) data bus based upon left multi-function switch inputs
and, depending upon vehicle equipment either a hard wired input from the sun load sensor on the
top of the instrument panel or electronic message inputs from the Rain Sensor Module (RSM) (also
known as the Rain/Light Sensor Module/RLSM) on the inside of the windshield below the
electrochromic inside rear view mirror mounting button to determine the proper request message
outputs to send to the FCM.
When a proper 12 volt Direct Current (DC) control output is received from the FCM, the HID
electronic ballast module activates the HID ignition module integral to the lighting element through
a high-voltage cable to provide a high voltage (up to about 800 volts Alternating Current/AC) surge.
The igniter further steps up this AC voltage to up to about 25,000 volts, which creates a light arc
between the lighting element electrodes. Once the igniter and electronic ballast module detect a
suitably stable light arc, they switch over to a power-limiting mode to sustain the light arc, which
requires only about 85 volts to sustain proper lighting element output.
The hard wired electronic ballast module circuits may be diagnosed using conventional diagnostic
tools and procedures. However, conventional diagnostic methods will not prove conclusive in the
diagnosis of the electronic ballast module or the electronic controls and communication that provide
some features of the HID lamp system. Proper diagnosis of the electronic ballast module, the FCM,
the EMIC, the SCM, the RSM, the CAN data bus, the LIN data bus and the electronic
communication related to electronic ballast module operation requires the use of a diagnostic scan
tool. Refer to the appropriate diagnostic information.
Keyless Systems - Intermittently Inoperative
Keyless Entry Module: All Technical Service Bulletins Keyless Systems - Intermittently Inoperative
NUMBER: 08-010-10
GROUP: Electrical
DATE: May 14, 2010
THE wiTECH DIAGNOSTIC APPLICATION IS THE PREFERRED METHOD FOR FLASHING
ECUs.
HELP USING THE wiTECH DIAGNOSTIC APPLICATION FOR FLASHING AN ECU IS
AVAILABLE BY SELECTING "HELP" THEN "HELP CONTENTS" AT THE TOP OF THE wiTECH
DIAGNOSTIC APPLICATION WINDOW.
THE wiTECH SOFTWARE LEVEL MUST BE AT RELEASE 10.04 OR HIGHER TO PERFORM
THIS PROCEDURE.
StarMOBILE DESKTOP CLIENT MAY ALSO BE USED TO PERFORM THIS PROCEDURE.
SUBJECT: Flash: WIN Module For Intermittent RKE Functions
OVERVIEW: This bulletin involves flash reprogramming the Wireless Ignition Node (WIN) with new
software.
MODELS:
2010 (DS) Ram Truck 1500
2010 (JC) Journey
2010 (LC) Challenger
2010 (LE) International 300 or Charger
2010 (LX) 300 and/or Charger
2010 (WK) Grand Cherokee
2010 (WH) International Grand Cherokee
2010 (XK) Commander
2010 (XH) International Commander
SYMPTOM/CONDITION: Customer may experience intermittent FOBIK operating characteristics.
Dealers are required to verify the manufacturer of the Wireless Ignition Node Module (WIN) and if
necessary, Flash the WIN with updated software.
DIAGNOSIS: If the vehicle operator describes the above Symptom/Condition, perform the Repair
Procedure.
REPAIR PROCEDURE: Check manufacturer of WIN Module
1. Using the wiTECH Diagnostic Application verify the WIN module is manufactured by Marquardt
2. Click on the reports tab on the top of the main page.
3. Select Run/View Reports.
4. Select ECU Details report.
5. Click on the arrow key to run the report.
6. Scroll to the bottom to find the WIN section.
A/C Clutch Relay - Removal
Compressor Clutch Relay: Service and Repair A/C Clutch Relay - Removal
REMOVAL
NOTE: LHD gasoline model shown. Diesel and RHD models similar.
1. Disconnect and isolate the negative battery cable. 2. Open the cover of the power distribution
center (PDC) (1) located in the engine compartment. 3. Remove the A/C clutch relay (2) from the
power distribution center.
Page 367
a. Turn on the 9936 TPM-RKE analyzer.
b. If required, place the indicator arrow on the left side of the screen next to "New Session" using
the Up and Down keys. Then press the "Select"
button.
d. If already at the main menu, select "TPM Functions."
e. Select the 2010 model year.
f. Choose the correct body style.
g. Select "Read Sensor."
h. Place the tip of the sensor reader against the tire sidewall near the valve stem (Figure 9).
i. Push the "Test" button.
j. Hold the tip of the sensor reader against the tire until the "Pass" light illuminates.
k. Write down the pressure sensor ID number displayed on the TPMRKE analyzer screen for future
reference.
2. Use the following procedure to program the spare tire pressure sensor to the WIN module:
a. Connect the wiTECH VCI pod to the vehicle data link connector.
b. Open the wiTECH Diagnostic Application.
c. Starting at the "Vehicle View" screen, select "WCM".
d. Select the "Misc. Functions" tab.
e. Select "Program Spare Tire Sensor ID" from the list.
f. Follow the screen prompts to program the spare tire pressure sensor and WIN.
g. After the programming is complete, clear all DTC's.
h. Disconnect and remove the wiTECH VCI pod, remove the battery charger and return the vehicle
to the customer.
I. Calibrate Door Module (LX/LC)
1. Turn the ignition to the "Run" position.
2. Regardless of current window position, move the driver side front window upward until the
window stalls in the full up position. Allow the window
motor to stall for at least 2 seconds before releasing the window switch.
3. Move the driver side front window downward until the window stalls in the full down position.
Allow the window motor to stall for at least 2 seconds
Blower Motor Power Module - Removal
Control Module HVAC: Service and Repair Blower Motor Power Module - Removal
REMOVAL
WARNING: Disable the airbag system before attempting any steering wheel, steering column or
instrument panel component diagnosis or
service. Disconnect and isolate the negative battery (ground) cable, then wait two minutes for the
airbag system capacitor to discharge before performing further diagnosis or service. This is the
only sure way to disable the airbag system. Failure to follow these instructions may result in
accidental airbag deployment and possible serious or fatal injury.
WARNING: The heat sink for the blower motor power module may get very hot during normal
operation. If the blower motor was turned on
prior to servicing the blower motor power module, wait five minutes to allow the heat sink to cool
before performing diagnosis or service. Failure to take this precaution can result in possible
personal injury.
NOTE: LHD model shown. RHD model similar.
1. Disconnect and isolate the negative battery cable. 2. On LHD models, remove the glove box
from the instrument panel See: Body and Frame/Interior Moulding / Trim/Glove
Compartment/Service
and Repair/Instrument Panel Glove Box - Removal.
3. On RHD models, remove the instrument panel silencer from the passenger side of the
instrument panel. 4. Disconnect the two wire harness connectors (1) from the blower motor power
module (2). 5. Remove the two screws (3) that secure the blower motor power module to the HVAC
housing (4). 6. Remove the blower motor power module from the HVAC housing.
Page 10
Alarm Module: Description and Operation Sentry Key Immobilizer Module (SKIM) - Operation
OPERATION
The functions and features of the Sentry Key Immobilizer System (SKIS) and Remote Keyless
Entry (RKE) are all integral to the Wireless Ignition Node (WIN) in this vehicle. The WIN contains a
Radio Frequency (RF) transceiver and a microprocessor. The WIN transmits Low Frequency (LF)
signals to, and receives LF signals from the Sentry Key transponder integral to the FOB with
Integrated Key (FOBIK) through a tuned antenna internal to the WIN housing.
The WIN also serves as the Remote Keyless Entry (RKE) RF receiver and, if the vehicle is so
equipped, the receiver for the Tire Pressure Monitoring (TPM) system. See: Body and
Frame/Locks/Power Locks/Description and Operation/Power Locks - Description or See:
Instrument Panel, Gauges and Warning Indicators/Tire Monitoring System/Description and
Operation/Tire Pressure Monitoring (TPM) - Description. The WIN communicates over the
Controller Area Network (CAN) data bus with the ElectroMechanical Instrument Cluster (EMIC)
(also known as the Cab Compartment Node/CCN), the Powertrain Control Module (PCM) or the
diagnostic scan tool. On vehicles equipped with an export premium version of the Sentry Key
Immobilizer System (SKIS), the WIN also serves as a translator module and has bi-directional
communication with the shaft lock module over a dedicated Local Interface Network (LIN) data bus.
The WIN and the PCM both use software that includes a rolling code algorithm strategy, which
helps to reduce the possibility of unauthorized Sentry Key Immobilizer System (SKIS) disarming.
The rolling code algorithm ensures security by preventing an override of the SKIS through the
unauthorized substitution of the WIN or the PCM. However, the use of this strategy also means that
replacement of either the WIN or the PCM units will require a system initialization procedure to
restore system operation.
The WIN retains in memory the ID numbers of any Sentry Key FOBIK transponder that is
programmed into it. A maximum of eight Sentry Key FOBIK transponders can be programmed into
the WIN. For added system security, each WIN is programmed with a unique Secret Key code.
This code is stored in memory, sent over the CAN data bus to the PCM, and is encoded to the
transponder of every Sentry Key FOBIK that is programmed into the WIN. Therefore, the Secret
Key code is a common element that is found in every component of the SKIS.
Another security code, called a PIN, is used to gain access to the WIN Secured Access Mode. The
Secured Access Mode is required during service to perform the SKIS initialization and Sentry Key
FOBIK transponder programming procedures. The WIN also stores the Vehicle Identification
Number (VIN) in its memory, which it learns through a CAN data bus message from the PCM
during SKIS initialization.
In the event that a WIN replacement is required, the Secret Key code can be transferred to the new
WIN from the PCM using the diagnostic scan tool and the SKIS initialization procedure. Proper
completion of the SKIS initialization will allow the existing Sentry Key FOBIKs to be programmed
into the new WIN so that new FOBIKs will not be required. In the event that the original Secret Key
code cannot be recovered, WIN replacement will also require new Sentry Key FOBIKs. The
diagnostic scan tool will alert the technician during the SKIS initialization procedure if new Sentry
Key FOBIKs are required . See: Powertrain Management/Computers and Control Systems/Testing
and Inspection/Programming and Relearning
When the ignition switch is turned to the ON position, the WIN transmits a LF signal to excite the
transponder in the FOBIK. The WIN then waits for a LF signal response from the transponder. If
the response received identifies the FOBIK as valid, the WIN sends an electronic valid key
message to the PCM over the CAN data bus. If the response received identifies the FOBIK as
invalid or if no response is received from the FOBIK transponder, the WIN sends an invalid key
message to the PCM. The PCM will enable or disable engine operation based upon the status of
the WIN messages. It is important to note that the default condition in the PCM is an invalid key;
therefore, if no message is received from the WIN by the PCM, the engine will be disabled and the
vehicle immobilized after two seconds of running.
The WIN also sends electronic security indicator request messages to the EMIC over the CAN data
bus to tell the EMIC how to operate the security indicator. The security indicator request message
from the WIN tells the EMIC to turn the indicator ON for about three seconds each time the ignition
switch is turned to the ON position as a bulb test. After completion of the bulb test, the WIN sends
security indicator request messages to the EMIC to turn the indicator OFF, turn the indicator ON, or
to flash the indicator ON and OFF. If the security indicator flashes or stays ON solid after the bulb
test, it signifies a SKIS fault. If the WIN detects a system malfunction or the SKIS has become
ineffective, the security indicator will stay ON solid. If the WIN detects an invalid FOBIK or if a
FOBIK transponder-related fault exists, the security indicator will flash. If the vehicle is equipped
with the Customer Learn transponder programming feature, the WIN will also send messages to
the EMIC to flash the security indicator whenever the Customer Learn programming mode is being
utilized.
The SKIS performs a self-test each time the ignition switch is turned to the ON position, and will
store fault information in the form of a Diagnostic Trouble Code (DTC) in WIN memory if a system
malfunction is detected. The hard wired circuits of the WIN may be diagnosed using conventional
diagnostic tools and procedures. Refer to the appropriate wiring information. However,
conventional diagnostic methods will not prove conclusive in the diagnosis of the WIN or the
electronic controls or communication between other modules and devices that provide some
features of the SKIS. The most reliable, efficient, and accurate means to diagnose the WIN or the
electronic controls and communication related to WIN operation requires the use of a diagnostic
scan tool. See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Diagnostic Trouble Code Tests and Associated Procedures.
Park Assist Switch - Description
Parking Assist Switch: Description and Operation Park Assist Switch - Description
DESCRIPTION
The park assist switch (4) is integral to the upper instrument panel switch pod (1), which is secured
to the instrument panel center bezel just above the heater and air conditioner controls. The park
assist switch push button is clearly identified with a white International Control and Display Symbol
graphic for Parking Aid and the text OFF. An amber Light Emitting Diode (LED) unit is illuminated
behind a small clear plastic jewel-like lens in the push button to give a visual indication whenever
the park assist system has been manually disabled with the ignition switch in the ON or START
positions. The switch button also has panel lamps dimmer controlled illumination for night visibility.
All of the circuitry and components of the park assist switch are contained within a molded black
plastic upper instrument panel switch pod housing. A single connector receptacle is integral to the
back of the switch pod housing. The switch is connected to the vehicle electrical system through a
dedicated take out and connector of the instrument panel wire harness.
The park assist switch cannot be adjusted or repaired and, if the switch is ineffective or damaged,
the entire instrument panel switch pod unit must be replaced. . See: Integrated Accessory Switch
Assembly/Service and Repair/Instrument Cluster Switch Pod - Removal
Page 421
Hood Sensor/Switch (For Alarm): Service and Repair Vehicle Theft Security Hood Ajar Switch Installation
Bracket
BRACKET
1. Check to be certain that the two rivet nuts (2) that secure the hood ajar switch bracket screws to
the left fender inner shield (1) are properly
installed and in good condition.
2. Position the hood ajar switch bracket (3) onto the left fender inner shield. 3. Install and tighten
the two screws (4) that secure the hood ajar switch bracket to the left fender inner shield. Tighten
the screws to 4 Nm (35 in.
lbs.).
4. Install a new hood ajar switch into the mounting bracket. . See:
Switch
SWITCH
NOTE: Self-adjustment of the hood ajar switch is a one-time feature. If the switch is damaged,
ineffective, removed or requires readjustment,
it must be replaced with a new unit.
1. Position the hood ajar switch (1) near the hole in the mounting bracket (2) on the left inner fender
side shield. 2. Pull the wire harness connector (3) through the switch mounting bracket and
reconnect it to the switch connector receptacle. 3. From the top of the mounting bracket, press the
switch downward into the mounting hole until the integral switch latch tabs lock it into place. 4.
Reconnect the battery negative cable. 5. Close and latch the hood.
Park Assist Module - Removal
Parking Assist Control Module: Service and Repair Park Assist Module - Removal
REMOVAL
1. Disconnect and isolate the battery negative cable. 2. Remove the rear seat cushion from the rear
floor panel (1). See: Body and Frame/Seats/Seat Cover/Service and Repair/Seat Cushion Cover Removal.
3. Disconnect the underbody wire harness connector (2) from the park assist module (3) connector
receptacle. Vehicles with the front park assist
option will have a second connection to the module at this location, which must also be
disconnected.
4. Using a trim stick or another suitable wide flat-bladed tool, gently pry the two latch features on
the inboard side of the mounting plate (4) away
from the mounting tabs of the module far enough to disengage the inboard (connector) side of the
module.
5. Pull the module inboard far enough to disengage the two mounting tabs on the outboard side of
the module from the slots in the mounting plate. 6. Remove the module from the mounting plate.
Satellite Video Module - Removal
Entertainment System Control Module: Service and Repair Satellite Video Module - Removal
REMOVAL
1. Disconnect and isolate the battery negative cable. 2. Remove the right rear quarter trim panel.
See: Body and Frame/Interior Moulding / Trim/Trim Panel/Service and Repair/Pillar Trim/C-Pillar
Trim
Panel - Removal.
3. Disconnect the electrical connector (2) and antenna connectors (1). 4. Remove the satellite
video mounting fasteners and remove the video module.
Page 336
1. Install the transponder (4) to the vehicle and reconnect the electrical connector (3). 2. Install the
mounting screw (1) for the transponder (4) 3 Nm (25 in. lbs.). 3. Lower the vehicle.
Page 368
before releasing the window switch.
4. Move the driver side front window upward until the window stalls in the full up position. Allow the
window motor to stall for at least 2 second before
releasing the window switch.
5. Repeat steps 1 through 4 to calibrate the module for the passenger side front window.
6. Verify that the windows are properly calibrated by operating the "Auto-Up" feature on the
windows. Repeat this procedure if the calibration failed.
7. For vehicles equipped:
> with Electronic Stability Program (ESP), continue with Section J. Calibrate the Steering Angle
Sensor (SAS).
> without Electronic Stability Program (ESP), clear all Diagnostic Trouble Codes (DTC's),
disconnect and remove the wiTECH VCI pod, remove the battery charger and return the vehicle to
the customer.
J. Calibrate the Steering Angle Sensor (LX/LC)
NOTE:
The Steering Angle Sensor (SAS) requires calibration (initialization) using the wiTECH scan tool. If
the SAS is not calibrate following battery reconnection, the ESP/BAS indicator lamp will flash
continuously with no Diagnostic Trouble Codes (DTC's).
1. Position the front wheels straight ahead and center the steering wheel.
2. Connect the wiTECH VCI pod to the vehicle data link connector
3. Place the ignition in the "RUN" position.
4. Launch the wiTECH Diagnostic Application.
5. Starting at the "Vehicle View Screen" screen, select "ABS Icon".
6. Select the "Misc. Functions" tab.
7. Select "Initialize ECU" from the list.
8. Follow the wiTECH on-screen instruction to complete the drive test.
9. After calibration is complete, clear all DTC's.
10. Disconnect and remove the wiTECH VCI pod, remove the battery charger and return the
vehicle to the customer.
Page 375
Parts Information
Due to the small number of involved vehicles expected to require a Wireless Ignition Node (WIN)
receiver, no parts will be distributed initially. WIN receivers should be ordered only after inspection
determines that replacement is required. Very few vehicles are expected to require WIN
replacement.
Reminder: VIN specific parts application for your dealer's assigned vehicles is available through the
Global Recall System (GRS) and Vehicle Information Plus (VIP).
Special Tools
The special tools shown are required to perform this repair.
Completion Reporting and Reimbursement
Claims for vehicles that have been serviced must be submitted on the
Page 66
Door Module: Programming and Relearning
STANDARD PROCEDURE
Any time a door control module is replaced, a power window glass is adjusted or removed, a power
window regulator is replaced or a power window motor is replaced, the hard stops for the power
window assemblies need to be cleared and relearned by the door control module. This procedure
is also sometimes referred to as denormalizing and normalizing or initialization. Refer to the
Clear/Relearn Standard Procedure in Power Windows. See: Windows and Glass/Windows/Testing
and Inspection/Programming and Relearning.
Page 443
1. If the park assist sensor (3) or the sensor spacer (2) are being replaced, engage the O-ring
spacer around the circumference of the sensor membrane
protrusion.
NOTE: Production and all service replacement O-ring spacers are tapered. The wide side (base) of
the O-ring should be seated against the
sensor housing and the narrow side should be oriented toward the outer surface of the sensor
membrane and the rear fascia molding.
2. If the sensor bracket (1) is being replaced, align and insert the sensor into the sensor bracket
until the bracket latch features are fully engaged over
the top and bottom tabs of the sensor. Be certain that the sensor spacer is in place around the
circumference of the sensor membrane protrusion.
3. If the sensor bracket is being replaced, align and insert the bracket and sensor unit between the
fascia molding latch features until the top and
bottom tabs of the sensor bracket are fully engaged. Be certain that the sensor membrane is flush
with the outer surface of the fascia molding.
4. If only the sensor or the sensor spacer are being replaced, align and insert the sensor into the
sensor bracket on the back of the rear bumper fascia
until the bracket latch features (2) are fully engaged over the top and bottom tabs of the sensor. Be
certain that the sensor membrane is flush with the outer surface of the fascia molding.
NOTE: Be certain that each sensor membrane is properly centered in the openings of the rear
fascia molding and that the O-ring spacers are
not pinched. Improper centering or pinched O-rings can be detrimental to proper park assist sensor
operation.
5. From the back of the fascia, reconnect the wire harness connector to the sensor connector
receptacle (1). 6. Reinstall the bumper fascia onto the rear of the vehicle. See: Body and
Frame/Bumper/Rear Bumper/Rear Bumper Cover / Fascia/Service and
Repair/Rear Bumper Fascia - Installation.
7. Reconnect the battery negative cable.
Satellite Video Module - Description
Entertainment System Control Module: Description and Operation Satellite Video Module Description
DESCRIPTION
The satellite receiver is located in the right rear quarter area behind the trim panel. It is secured
with three mounting fasteners
Description and Operation
Blower Motor Relay: Description and Operation
DESCRIPTION
The blower motor relay (1) for the heating-A/C system is an International Standards Organization
(ISO)-type relay. Relays conforming to the ISO specifications have common physical dimensions,
current capacities, terminal functions and patterns (2). The blower motor relay is a
electromechanical device that switches battery current through a fuse in the power distribution
center (PDC) directly to the blower motor when equipped with the manual temperature control
(MTC) system, or to the blower motor power module when equipped with the automatic
temperature control (ATC) system. The blower motor relay is energized when the relay coil is
provided battery current by the ignition switch.
The blower motor relay is located in the power distribution center inside the engine compartment.
Page 411
Wiper Relay: Description and Operation
High and Low Wiper Relay - Description
DESCRIPTION
The wiper high/low relay (1) is a conventional International Standards Organization (ISO) micro
relay. Relays conforming to the ISO specifications have common physical dimensions, current
capacities, terminal patterns (2), and terminal functions. This relay is contained within a small,
rectangular, molded plastic housing and is connected to all of the required inputs and outputs
through five integral male spade-type terminals that extend from the relay base plate.
The wiper high/low relay is located in the Integrated Power Module (IPM) in the engine
compartment, near the battery. Refer to the layout label on the underside of the IPM cover for
specific relay cavity assignment information. The wiper high/low relay cannot be adjusted or
repaired and, if ineffective or damaged, the unit must be replaced.
High and Low Wiper Relay - Operation
OPERATION
The wiper high/low relay is an electromechanical switch that uses a low current input from the Front
Control Module (FCM) to control a high current output to the front wiper motor. The movable
common feed contact point is held against the fixed normally closed contact point by spring
pressure. When the relay coil is energized, an electromagnetic field is produced by the coil
windings. This electromagnetic field draws the movable relay contact point away from the fixed
normally closed contact point, and holds it against the fixed normally open contact point. When the
relay coil is de-energized, spring pressure returns the movable contact point back against the fixed
normally closed contact point. A resistor is connected in parallel with the relay coil in the relay, and
helps to dissipate voltage spikes and electromagnetic interference that can be generated as the
electromagnetic field of the relay coil collapses.
The wiper high/low relay terminals are connected to the vehicle electrical system through a
connector receptacle in the Integrated Power Module (IPM). The inputs and outputs of the wiper
high/low relay include:
- Common Feed Terminal - The common feed terminal (30) is connected to the output of the wiper
on/off relay at all times through the wiper on/off relay output circuit.
- Coil Ground Terminal - The coil ground terminal (85) is connected to a control output of the FCM
through a wiper high/low relay control circuit. The FCM controls wiper motor operation by
controlling a ground path through this circuit.
- Coil Battery Terminal - The coil battery terminal (86) receives battery current at all times from a
fuse in the IPM through a fused ignition switch output (run-acc) circuit.
- Normally Open Terminal - The normally open terminal (87) is connected to the high speed brush
of the wiper motor through a wiper high/low relay high speed output circuit, and is connected to the
high speed brush whenever the relay is energized.
- Normally Closed Terminal - The normally closed terminal (87A) is connected to the low speed
brush of the wiper motor through a wiper high/low relay low speed output circuit, and is connected
to the low speed brush whenever the relay is de-energized.
The wiper high/low relay as well as the hard wired inputs and outputs of the relay may be
diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring
information.
ON and OFF Wiper Relay - Description
Page 245
NOTE: PCM Outputs:
- A/C clutch relay
- Auto shutdown (ASD) relay
- CAN bus (+/-) circuits for: speedometer, voltmeter, fuel gauge, oil pressure gauge/lamp, engine
temp. gauge and speed control warn. lamp
- Data link connection for diagnostic scan tool
- Double start override (if equipped)
- EGR valve control solenoid (if equipped)
- Electronic throttle control
- EVAP canister purge solenoid
- Five volt sensor supply (primary)
- Five volt sensor supply (secondary)
- Fuel injectors
- Fuel pump relay
- Generator field driver (-)
- Generator field driver (+)
- Generator lamp (if equipped)
- Idle air control (IAC) motor
- Ignition coil(s)
- CAN bus circuits
- Leak detection pump (if equipped)
- Malfunction indicator lamp (Check engine lamp). Driven through CAN bus circuits.
- Overdrive indicator lamp (if equipped)
- Radiator cooling fan (if equipped)
- Speed control vacuum solenoid
- Speed control vent solenoid
- Starter relay
- Tachometer (if equipped). Driven through CAN bus circuits.
- Transmission convertor clutch circuit
- Transmission 3-4 shift solenoid
- Transmission relay
- Transmission temperature lamp (if equipped)
- Transmission variable force solenoid
5V Power Supplies
5 VOLT SUPPLIES
Primary 5-volt supply:
- supplies the required 5 volt power source to the Crankshaft Position (CKP) sensor.
- supplies the required 5 volt power source to the Camshaft Position (CMP) sensor.
- supplies a reference voltage for the Manifold Absolute Pressure (MAP) sensor.
- supplies a reference voltage for the Throttle Position Sensor (TPS) sensor.
Secondary 5-volt supply:
- supplies the required 5 volt power source to the oil pressure sensor.
- supplies the required 5 volt power source for the Vehicle Speed Sensor (VSS) (if equipped).
- supplies the 5 volt power source to the transmission pressure sensor (if equipped with an RE
automatic transmission).
Ignition Circuit Sense
IGNITION CIRCUIT SENSE
The ignition circuit sense input tells the PCM the ignition switch has energized the ignition circuit.
Battery voltage is also supplied to the PCM through the ignition switch when the ignition is in the
RUN or START position. This is referred to as the "ignition sense" circuit and is used to "wake up"
the PCM. Voltage on the ignition input can be as low as 6 volts and the PCM will still function.
Voltage is supplied to this circuit to power the PCM's 8-volt regulator and to allow the PCM to
perform fuel, ignition and emissions control functions.
Page 89
Memory Positioning Module: Description and Operation Memory Seat Module - Operation
OPERATION
The Memory Seat Module (MSM) receives battery current through a 25 amp circuit breaker in the
Power Distribution Center (PDC) so that the memory system remains operational, regardless of the
ignition switch position. When the driver memory switch button is pushed, a resistance signal is
sent to the MSM via the Controller Area Network (CAN) bus circuit. The MSM is responsible for the
12v battery feed and ground path to the power seat adjuster motor and other memory system
components.
The MSM receives memory set/position switch input through the CAN bus circuit. The MSM also
receives hard wired input from the hall effect sensors, mounted on each of the driver power seat
adjuster motors and the driver side view mirror motor. The programmed software in the module
allows it to know where the seat and adjustable pedals are located in its designed travel by a pulse
count generated from the hall effect sensors. This way, when the memory switch is depressed the
module will power these components until the correct preset location is achieved. The module will
prevent the seat memory recall function from being initiated, if the transmission gear selector lever
is not in the Park position, or if the vehicle is moving. These inputs are monitored over the
Controller Area Network (CAN) bus circuit by the MSM.
A memory setting is saved by pressing the "set" button, then pressing either the memory "1" or "2"
button within 5 seconds of pressing the "set" button.
A memory setting is recalled by pressing either the memory "1" or "2" button, or by pressing the
unlock button on a "linked" Remote Keyless Entry (RKE) transmitter.
For driver safety, memorized settings can not be recalled if the transmission is in a position other
than Park or the seat belt is latched.
The MSM performs the following functions:
- Positions the driver power seat (vertical, horizontal, and recliner positions).
- Positions the power adjustable pedals.
- Sends the memory save or recall (number 1 or number 2) command over the CAN data bus
circuit to the other memory system components, radio station pre-sets and power mirror positions.
- Provides for "linking" the key FOBs to memory.
- Provides for the easy entry/exit feature.
When a memory button is pressed (number 1 or number 2) on the memory switch, the Driver Door
Module (DDM) sends a recall message to the MSM. The MSM will then position the memory
system components to the preprogrammed location/setting. When the Remote Keyless Entry
(RKE) Transmitter button is pressed, depending on which transmitter (number 1 or number 2), the
SKREEM (RKE Receiver) sends the recall request and FOB number (number 1 or number 2) data
message. This RKE transmitter function depends on if the MSM is programmed to trigger the recall
(linked FOBs).
A key FOB is "linked" to a memory setting by pressing the "set" button and then pressing either the
memory "1" or "2" button within 5 seconds of pressing the set button, then by pressing the "lock"
button on the selected key FOB.
The memory system "Easy Entry and /Exit" feature provides the driver with more room to enter or
exit the vehicle. When the seat is in a memorized position, it will move rearward 55 millimeters or to
the end of its travel, whichever occurs first, when the key is removed from the ignition switch lock
cylinder. This is a customer programmable feature of the overhead console. The seat will return to
the memory position when the driver turns the vehicle's ignition switch out of the LOCK position.
The memory system "learns" the seat and adjustable pedal motor maximum end positions when
the motor reaches the limit of travel in any direction and stalls. Subsequently, movement will stop
just short of that position to avoid extra stress on the motors and mechanisms. If the system
learned a maximum position as a result of an obstruction, as for instance if a large object was
placed on the floor behind the seat, the system can relearn the "true" maximum position through
manually operating the power seat after the obstruction is removed.
NOTE: It is normal for the power accessories contained in the memory system to stop at the
maximum "learned" position and then continue
to the "true" maximum position when the control switch is released and then applied in the same
direction a second time.
Certain functions and features of the memory system rely upon resources shared with other
electronic modules in the vehicle over the Controller Area Network (CAN) bus. The CAN bus allows
the sharing of sensor information. This helps to reduce wire harness complexity, internal controller
hardware, and component sensor current loads. At the same time, this system provides increased
reliability, enhanced diagnostics, and allows the addition of many new feature capabilities. For
diagnosis of these electronic modules or of the CAN bus, the use of a scan tool and the proper
diagnostic information are needed.
Page 292
Air Bag Control Module: Service and Repair Occupant Restraint Controller - Installation
INSTALLATION
WARNING: To avoid serious or fatal injury on vehicles equipped with side curtain airbags, disable
the Supplemental Restraint System (SRS)
before attempting any Occupant Restraint Controller (ORC) diagnosis or service. The ORC
contains a rollover sensor, which enables the system to deploy the side curtains in the event of a
vehicle rollover event. If an ORC is accidentally rolled during service while still connected to battery
power, the side curtain airbags will deploy. Disconnect and isolate the battery negative (ground)
cable, then wait two minutes for the system capacitor to discharge before performing further
diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper
precautions could result in accidental airbag deployment.
WARNING: To avoid serious or fatal injury on vehicles equipped with airbags, disable the
Supplemental Restraint System (SRS) before
attempting any steering wheel, steering column, airbag, seat belt tensioner, impact sensor, or
instrument panel component diagnosis or service. Disconnect and isolate the battery negative
(ground) cable, then wait two minutes for the system capacitor to discharge before performing
further diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper
precautions could result in accidental airbag deployment.
WARNING: To avoid serious or fatal injury, never strike or drop the Occupant Restraint Controller
(ORC), as it can damage the impact
sensor or affect its calibration. The ORC contains the impact sensor, which enables the system to
deploy the Supplemental Restraint System (SRS) components. If an ORC is accidentally dropped
during service, the module must be scrapped and replaced with a new unit. Failure to observe this
warning could result in accidental, incomplete, or improper SRS component deployment.
NOTE: Several different Occupant Restraint Controllers (ORC) are available for this vehicle. For
vehicles equipped with the optional side
curtain airbags, the ORC contains a second bi-directional safing sensor for the side airbags.
1. Carefully position the Occupant Restraint Controller (ORC) (3) onto the ORC mount on the floor
panel transmission tunnel (1). The bottom of the
ORC housing is keyed. When the ORC is correctly positioned, the bottom of the housing will fit
flush with the mount and the orientation arrow on the label on top of the housing will be pointed
forward in the vehicle.
2. Install and tighten the three screws (2) that secure the ORC to the ORC mount that is welded
onto the floor panel transmission tunnel. Tighten the
screws to 14 Nm (10 ft. lbs.).
Adjustable Pedal Module - Removal
Pedal Positioning Module: Service and Repair Adjustable Pedal Module - Removal
REMOVAL
1. Disconnect and isolate the battery negative cable. 2. Remove the driver seat cushion/cover (2)
See: Body and Frame/Seats/Seat Cover/Service and Repair/Seat Cushion Cover - Removal. 3.
Pivot the module upward and disconnect the electrical connectors (1). 4. Unsnap the adjustable
pedals module (4) from the side brackets. 5. Pull the module rearward to remove it from the front of
the seat frame (3).
Page 331
Tire Pressure Monitor Receiver / Transponder: Description and Operation Tire Pressure Monitoring
(TPM) Transponder - Operation
OPERATION
Transponders located in three of the four wheel wells of the vehicle provide the Wireless Ignition
Node (WIN) with the location of the tire pressure sensors on the vehicle. The transponders are
located in the left front, right front and right rear wheel wells. A fourth transponder is not necessary
in the remaining wheel well due to the process-of-elimination theory. Once the system knows the
location of the first three sensors it assumes the location of the fourth tire pressure sensor is in the
left rear tire.
Trailer Tow Module - Removal
Trailer Lighting Module: Service and Repair Trailer Tow Module - Removal
REMOVAL
1. Disconnect and isolate the battery negative cable. 2. Remove the rear seat cushion from the rear
floor panel. See: Body and Frame/Seats/Seat Cover/Service and Repair/Seat Cushion Cover Removal
.
3. Disconnect the four body wire harness connectors from the connector receptacles (4) on the
back of the Trailer Module (TM) (1). 4. Using a trim stick or another suitable wide flat-bladed tool,
gently pry the latch features (5) on each side of the mounting plate (2) away from the
mounting tabs of the module far enough to disengage the module.
5. Remove the module from the mounting plate.
Page 97
Pedal Positioning Module: Testing and Inspection
ADJUSTABLE PEDALS MODULE (APM)
In order to obtain conclusive testing of the adjustable pedals system, the Controller Area Network
(CAN) data bus, and all of the electronic modules that provide inputs to, or receive outputs from the
adjustable pedals system components must be checked. Any diagnosis of the adjustable pedals
module should begin with the use of a scan tool and the appropriate diagnostic service information.
Refer to the appropriate wiring information for complete circuit schematic or connector pin-out
information.
Before any testing of the adjustable pedals system is attempted, the battery should be
fully-charged.
Page 247
3. CHECKING THE PCM FUSED IGNITION CIRCUITS
CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will
damage the PCM terminals resulting in
poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis.
1. Turn the ignition on. 2. Using a 12 volt test light connected to ground, check the PCM Fused
Ignition circuits. 3. Check each circuit with the ignition on, engine running position, and during
cranking. 4. Wiggle test each circuit during the test to check for an intermittent open in the circuit.
NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct
connection to the battery.
Is the test light illuminated and bright?
Yes
- Go To 4.
No
- Repair the open or short to ground in the PCM Fused Ignition circuits.
- Perform the POWERTRAIN VERIFICATION TEST. See: Powertrain Management/Computers and
Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated
Procedures/Verification Tests/Powertrain Verification Test.
4. CHECKING THE PCM FUSED B+ CIRCUITS
1. Turn the ignition off.
Headlamp Leveling Module - Description
Headlamp Alignment Control Module: Description and Operation Headlamp Leveling Module Description
DESCRIPTION
An Automatic Headlamp Leveling Module (AHLM) (1) is standard equipment with the optional High
Intensity Discharge (HID) headlamps. The AHLM is located on the bottom of the right front lamp
unit housing, but serves both the right and left front lamp units. This module works in conjunction
with the front and rear axle sensors and the headlamp leveling motors to provide automatic
headlamp beam adjustment to compensate for changes in vehicle height cased by changes in
vehicle loading, acceleration or deceleration.
The molded black plastic AHLM housing has integral mounting flanges (4) that are secured by a
stamped aluminum cover plate and four screws to a receptacle in the bottom of the right front lamp
unit housing. Concealed within the housing is the circuitry of the module, which includes a
microprocessor. The module is connected through an integral connector receptacle (2) to the
vehicle electrical system by a take out and connector of the right front lamp unit wire harness.
The AHLM cannot be adjusted or repaired and, if ineffective or damaged, it must be replaced.
Rear Defogger Relay - Removal
Heated Glass Element Relay: Service and Repair Rear Defogger Relay - Removal
REMOVAL
1. Disconnect and isolate the negative battery cable. 2. Remove the junction block (JB) (1) from
underneath the instrument panel See: Maintenance/Fuses and Circuit Breakers/Fuse Block/Service
and
Repair/Junction Block - Removal.
3. Remove the EBL relay (2) from the top side of the JB.
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Engine Control Module: Testing and Inspection
CHECKING THE PCM POWER AND GROUND CIRCUITS
For a complete wiring diagram Refer to the Wiring Information .
1. PCM WIRING OR CONNECTORS
1. Turn the ignition off. 2. Using the wiring diagram/schematic as a guide, inspect the wiring and
each connector at the PCM. 3. Look for any chafed, pierced, pinched, or partially broken wires. 4.
Look for broken, bent, pushed out or corroded terminals.
Were any problems found?
Yes
- Repair as necessary.
- Perform the POWERTRAIN VERIFICATION TEST. See: Powertrain Management/Computers and
Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated
Procedures/Verification Tests/Powertrain Verification Test.
No
- Go To 2
2. CHECKING THE PCM GROUND CIRCUITS
1. Turn the ignition off.
CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will
damage the PCM terminals resulting in
poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis.
2. Using a 12 volt test light connected to 12 volts, check the PCM ground circuits. 3. Wiggle test
each circuit during the test to check for an intermittent open in the circuit.
NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct
connection to the battery.
Is the test light illuminated and bright?
Yes
- Go To 3.
No
- Repair the PCM ground circuit(s) for an open circuit or high resistance.
- Perform the POWERTRAIN VERIFICATION TEST. See: Powertrain Management/Computers and
Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated
Procedures/Verification Tests/Powertrain Verification Test.
Vehicle Theft Security Hood Ajar Switch - Removal
Hood Sensor/Switch (For Alarm): Service and Repair Vehicle Theft Security Hood Ajar Switch Removal
Bracket
BRACKET
1. Remove the hood ajar switch from the mounting bracket (3). . See: 2. Remove the two screws
(4) that secure the hood ajar switch bracket to the rivet nuts (2) in the left fender inner shield (1). 3.
Remove the hood ajar switch bracket from the left fender inner shield.
Switch
SWITCH
1. Unlatch and open the hood. 2. Disconnect and isolate the battery negative cable. 3. From the top
of the hood ajar switch mounting bracket (2) on the left inner fender shield, squeeze the two switch
latch tabs together and pull the
switch (1) upward.
4. Pull the hood ajar switch up through the hole in the mounting bracket far enough to access and
disconnect the wire harness connector (3) from the
switch connector receptacle.
5. Remove the hood ajar switch from the mounting bracket and discard.
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Main Relay (Computer/Fuel System): Description and Operation Auto Shutdown Relay - Operation
PCM Output
PCM OUTPUT
The ASD relay supplies battery voltage (12+ volts) to the fuel injectors and ignition coil(s). With
certain emissions packages it also supplies 12-volts to the oxygen sensor heating elements.
The ground circuit for the coil within the ASD relay is controlled by the Powertrain Control Module
(PCM). The PCM operates the ASD relay by switching its ground circuit on and off.
The ASD relay will be shut-down, meaning the 12-volt power supply to the ASD relay will be
de-activated by the PCM if:
- The ignition key is left in the ON position. This is if the engine has not been running for
approximately 1.8 seconds.
- There is a crankshaft position sensor signal to the PCM that is lower than pre-determined values.
ASD Sense - PCM Input
ASD SENSE - PCM INPUT
A 12 volt signal at this input indicates to the PCM that the ASD has been activated. The relay is
used to connect the oxygen sensor heater element, ignition coil and fuel injectors to 12 volt +
power supply.
This input is used only to sense that the ASD relay is energized. If the Powertrain Control Module
(PCM) does not see 12 volts at this input when the ASD should be activated, it will set a Diagnostic
Trouble Code (DTC).
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12. Remove the 3 ABM bolts securing the ABM (1) to the HCU (2).
13. Separate the ABM (1) from the HCU (2).
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Pedal Positioning Module: Testing and Inspection
ADJUSTABLE PEDALS MODULE (APM)
In order to obtain conclusive testing of the adjustable pedals system, the Controller Area Network
(CAN) data bus, and all of the electronic modules that provide inputs to, or receive outputs from the
adjustable pedals system components must be checked. Any diagnosis of the adjustable pedals
module should begin with the use of a scan tool and the appropriate diagnostic service information.
Refer to the appropriate wiring information for complete circuit schematic or connector pin-out
information.
Before any testing of the adjustable pedals system is attempted, the battery should be
fully-charged.
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3. Perform repeated N-D shifts at a stop while pausing in Neutral for at least 2-3 seconds and
monitor Norm N-D UD CVI volume until the value
stabilizes. The value will change during the N-D shift. This is normal since the UD value is different
for the N-D shift then the normal value shown which is used for 4-3 coastdown and kick downs.
Perform repeated shifts in this temperature range until the Norm N-D UD CVI value stabilizes and
the N-D shifts become smooth.
LEARN THE 1ST 2-3 SHIFT AFTER A RESTART OR SHIFT TO REVERSE
Use the following steps to have the TCM learn the 1st 2-3 shift OD CVI.
NOTE: The transmission oil temperature must be above 27° C (80° F).
1. With the vehicle engine running, select reverse gear for over 2 seconds. 2. Shift the transmission
to Drive and accelerate the vehicle from a stop at a steady 15 degree throttle opening and perform
a 2-3 shift while noting
the 1st 2-3 OD CVI.
3. Repeat 1 and 2 until the 1st 2-3 upshift becomes smooth and the 1st 2-3 OD CVI stabilizes.
LEARN A SMOOTH 2-3 AND 3-4 UPSHIFT
NOTE: The transmission oil temperature must be above 43° C (110° F).
Use the following steps to have the TCM learn the OD and 4C CVI's.
1. Accelerate the vehicle from a stop at a steady 15 degree throttle opening and perform multiple
1-2, 2-3, and 3-4 upshifts. The 2nd 2-3 shift
following a restart or shift to reverse will be shown during the shift as a value between the 1st 2-3
OD CVI and the normal OD CVI. Updates to the normal OD CVI will occur after the 2nd shift into
3rd gear, following a restart or shift to reverse.
2. Repeat 1 until the 2-3 and 3-4 shifts become smooth and the OD and 4C CVI become stable.
LEARN A SMOOTH 4-3 COASTDOWN AND PART THROTTLE 4-3 KICKDOWN
NOTE: The transmission oil temperature must be above 43° C (110° F).
Use the following steps to have the TCM learn the UD shift volume.
1. At a vehicle speed between 64-97 km/h (40-60 MPH), perform repeated 4-3 kickdown shifts. 2.
Repeat 1 until the UD volume becomes somewhat stable and the shift becomes smooth.
LEARN A SMOOTH 1-2 UPSHIFT AND 3-2 KICKDOWN
Use the following steps to have the TCM learn the 2C shift volume.
NOTE: The transmission oil temperature must be above 43° C (110° F).
1. With a vehicle speed below 48 km/h (30 MPH) and the transmission in 3rd gear, perform multiple
3-2 kick downs. 2. Repeat 1 until the 3-2 kick downs become smooth and the 2C CVI becomes
stable.
LEARN A SMOOTH MANUAL 2-1 PULLDOWN SHIFT AS WELL AS A NEUTRAL TO REVERSE
SHIFT
NOTE: The transmission oil temperature must be above 43° C (110° F).
Use the following steps to have the TCM learn the LR volume.
1. With the vehicle speed around 40-48 km/h (25-30 MPH) in Manual 2nd, perform manual
pulldowns to Low or 1st gear at closed throttle. 2. Repeat 1 until the LR CVI becomes stable and
the manual 2-1 becomes smooth.
LEARN A SMOOTH NEUTRAL TO REVERSE SHIFT
NOTE: The transmission oil temperature must be above 43° C (110° F).
1. With the vehicle at a stop, perform Neutral to Reverse shifts until the shift is smooth. An
unlearned Neutral to Reverse shift may be harsh or
exhibit a double bump.
2. If any of the shifts are still not smooth after the clutch volume stabilizes, an internal transmission
problem may be present.
LEARN A SMOOTH 4-5 UPSHIFT
NOTE: The transmission oil temperature must be above 43° C (110° F).
Auto Shutdown Relay - Removal
Main Relay (Computer/Fuel System): Service and Repair Auto Shutdown Relay - Removal
REMOVAL
The ASD relay is located in the engine compartment within the Power Distribution Center (PDC).
Refer to label on power distribution center cover for relay location.
1. Remove power distribution center cover. 2. Remove relay from power distribution center. 3.
Check condition of relay terminals and power distribution center connector terminals for damage or
corrosion. Repair if necessary before installing
relay.
4. Check for pin height (pin height should be the same for all terminals within the power distribution
center connector). Repair if necessary before
installing relay.
Transmission Control Module - Description
Control Module: Description and Operation Transmission Control Module - Description
4.7L/5.7L VEHICLES
The Transmission Control Module (TCM) is a sub-module within the Powertrain Control Module
(PCM) (1). The PCM is located on the right inner fender.
Page 197
7. Check the supplier ID. Is the Supplier Marquardt?
a. No>>> Inspection is complete. Please refer to normal diagnostics for the customers concern.
b. Yes>>> Continue with step 8.
8. Now check the software version listed on the same page. Is the WIN software version lower than
10.02.01?
a. No>>> Inspection is complete check for other issues causing customer concern
b. Yes>>> Continue with the repair procedure step 9.
NOTE:
If this flash process is interrupted/aborted, the flash should be restarted.
9. Using the wiTECH Diagnostic Application for flashing a WIN is made available through the
wiTECH Diagnostic Application. For instructions select
the "HELP tab on upper portion of the wiTECH window, then "HELP CONTENTS. This will open
the Welcome to wiTECH Help screen were help topics can now selected.
10. Clear any DTC's that may have been set in other modules due to reprogramming. The wiTECH
application will automatically present all DTCs after
the flash and allow the tech to clear them.
POLICY: Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
FAILURE CODE:
Disclaimer:
This bulletin is supplied as technical information only and is not an authorization for repair.
Page 119
Electronic Brake Control Module: Description and Operation Anti-Lock Brake System Module Operation
OPERATION
NOTE: If the ABM nodule is replaced it must be initialized using the scan tool.
The ABM voltage is supplied by the ignition switch in the RUN position. The ABM contains dual
microprocessors. A logic block in each microprocessor receives identical sensor signals. These
signals are processed and compared simultaneously. The ABM contains a self check program that
illuminates the ABS warning light when a system fault is detected. Faults are stored in a diagnostic
program memory and are accessible with the scan tool. ABS faults remain in memory until cleared,
or until after the vehicle is started approximately 50 times. Stored faults are not erased if the battery
is disconnected.
Keyless Systems - Intermittently Inoperative
Keyless Entry Module: Customer Interest Keyless Systems - Intermittently Inoperative
NUMBER: 08-010-10
GROUP: Electrical
DATE: May 14, 2010
THE wiTECH DIAGNOSTIC APPLICATION IS THE PREFERRED METHOD FOR FLASHING
ECUs.
HELP USING THE wiTECH DIAGNOSTIC APPLICATION FOR FLASHING AN ECU IS
AVAILABLE BY SELECTING "HELP" THEN "HELP CONTENTS" AT THE TOP OF THE wiTECH
DIAGNOSTIC APPLICATION WINDOW.
THE wiTECH SOFTWARE LEVEL MUST BE AT RELEASE 10.04 OR HIGHER TO PERFORM
THIS PROCEDURE.
StarMOBILE DESKTOP CLIENT MAY ALSO BE USED TO PERFORM THIS PROCEDURE.
SUBJECT: Flash: WIN Module For Intermittent RKE Functions
OVERVIEW: This bulletin involves flash reprogramming the Wireless Ignition Node (WIN) with new
software.
MODELS:
2010 (DS) Ram Truck 1500
2010 (JC) Journey
2010 (LC) Challenger
2010 (LE) International 300 or Charger
2010 (LX) 300 and/or Charger
2010 (WK) Grand Cherokee
2010 (WH) International Grand Cherokee
2010 (XK) Commander
2010 (XH) International Commander
SYMPTOM/CONDITION: Customer may experience intermittent FOBIK operating characteristics.
Dealers are required to verify the manufacturer of the Wireless Ignition Node Module (WIN) and if
necessary, Flash the WIN with updated software.
DIAGNOSIS: If the vehicle operator describes the above Symptom/Condition, perform the Repair
Procedure.
REPAIR PROCEDURE: Check manufacturer of WIN Module
1. Using the wiTECH Diagnostic Application verify the WIN module is manufactured by Marquardt
2. Click on the reports tab on the top of the main page.
3. Select Run/View Reports.
4. Select ECU Details report.
5. Click on the arrow key to run the report.
6. Scroll to the bottom to find the WIN section.
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An important function of the TCM is to monitor Clutch Volume Indexes (CVI). CVIs represent the
volume of fluid needed to compress a clutch pack.
The TCM monitors gear ratio changes by monitoring the Input and Output Speed Sensors. The
Input, or Turbine Speed Sensor sends an electrical signal to the TCM that represents input shaft
rpm. The Output Speed Sensor provides the TCM with output shaft speed information.
By comparing the two inputs, the TCM can determine transmission gear position. This is important
to the CVI calculation because the TCM determines CVIs by monitoring how long it takes for a gear
change to occur.
Gear ratios can be determined by using the Scan Tool and reading the Input/Output Speed Sensor
values in the "Monitors" display. Gear ratio can be obtained by dividing the Input Speed Sensor
value by the Output Speed Sensor value.
The gear ratio changes as clutches are applied and released. By monitoring the length of time it
takes for the gear ratio to change following a shift request, the TCM can determine the volume of
fluid used to apply or release a friction element.
The volume of transmission fluid needed to apply the friction elements are continuously updated for
adaptive controls. As friction material wears, the volume of fluid need to apply the element
increases.
Certain mechanical failures within the input clutch assembly can cause inadequate or out-of-range
element volumes. Also, defective Input/Output Speed Sensors and wiring can cause these
conditions. The following chart identifies the appropriate clutch volumes and when they are
monitored/updated:
SHIFT SCHEDULES
As mentioned earlier, the TCM has programming that allows it to select a variety of shift schedules.
Shift schedule selection is dependent on the