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Power and Ground Distribution Diagrams contain the diagrams that show the complete details for
each ground connection or main ground splice. This is useful in diagnosing a problem affecting
several components at once (poor ground connection or ground splice). All details (wires, splices,
connectors) between the ground point and the components are shown. These ground connection
details are shown here in order to keep the individual set of diagrams as uncluttered as possible.
Component and Connector Information
Locations information that can be found at the vehicle level will help the user find where the various
items depicted on the diagram can physically be found on the vehicle. See: Locations
Component Location Views show the components and their connecting wires as they can be found
on the vehicle. See: Locations/Component Locations/Component Location Views
"Connector Views" show the views of the pins and/or cavities of all connectors. The pin and cavity
sides are shown separately as if the connector were disconnected. The color of the connector
housing is indicated next to the connector number when available. The harness causal number is
located above the connector view and below the connector number. The circuit function charts are
located below each connector. See: Diagrams/Connector Views
WARNINGS
^ Always wear safety glasses for eye protection.
^ Use safety stands whenever a procedure requires being under a vehicle.
^ Be sure that the Ignition Switch is always in the OFF position, unless otherwise required by the
procedure.
^ Set the parking brake when working on any vehicle. An automatic transmission should be in
PARK. A manual transmission should be in NEUTRAL.
^ Operate the engine only in a well-ventilated area to avoid danger of carbon monoxide.
^ Keep away from moving parts, especially the fan and belts, when the engine is running.
^ To prevent serious burns, avoid contact with hot metal parts such as the radiator, exhaust
manifold, tailpipe, catalytic converter and muffler.
^ Do not allow flame or sparks near the battery. Gases are always present in and around the
battery cell. An explosion could occur.
^ Do not smoke when working on a vehicle.
^ To avoid injury always remove rings, watches, loose hanging jewelry and avoid wearing loose
clothing.
Symbols and Wire Color Code Identification
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Lock may be displaced into an unlocked position; pull on the connector to verify the lock.
Deformed (enlarged) female terminals
1 Enlarged
2 Normal
Any probe entering the terminal may enlarge the contact spring opening creating an intermittent
signal. Insert the correct mating terminal (Location A) from the service kit and feel for a loose fit.
Electrical short inside the harness
1 Solder coated wire to ground
2 Harness protective tape
3 Intermittent short Solder coated wire pierced through the insulation of another circuit
4 Grounding foil
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Lock may be displaced into an unlocked position; pull on the connector to verify the lock.
Deformed (enlarged) female terminals
1 Enlarged
2 Normal
Any probe entering the terminal may enlarge the contact spring opening creating an intermittent
signal. Insert the correct mating terminal (Location A) from the service kit and feel for a loose fit.
Electrical short inside the harness
1 Solder coated wire to ground
2 Harness protective tape
3 Intermittent short Solder coated wire pierced through the insulation of another circuit
4 Grounding foil
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