GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Body Control Module (BCM)

Lower rear of the IP, on the heater

Body Control System Component Views in Body Control System

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Body Control Module (BCM) Connector C1 (BRN) (24 Cavities)

Lower rear of the IP, on the heater

Body Control System Component Views in Body Control System

Body Control System Connector End Views in Body Control System

Body Control Module (BCM) Connector C2 (LT BLU) (24 Cavities)

Lower rear of the IP, on the heater

Body Control System Component Views in Body Control System

Body Control System Connector End Views in Body Control System

Body Control Module (BCM) Connector C3 (PPL) (16 Cavities)

Lower rear of the IP, on the heater

Body Control System Component Views in Body Control System

Body Control System Connector End Views in Body Control System

Body Relay Block

Left side of the dash, to the right of the IP fuse block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Data Link Connector (DLC)

Lower left of the IP

Data Link Communications Component Views in Data Link Communications

Data Link Communications Connector End Views in Data Link Communications

Door Lock Cylinder Switch, LH

Part of the door latch assembly

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views

in Doors

Endgate Lock Cylinder Switch

Top center of the endgate

Body Rear End Component Views

Power Door Systems Connector End Views in Doors

Endgate Window Release Actuator

Inside the top of the endgate

Body Rear End Component Views

Body Rear End Connector End Views

Instrument Cluster

In the IP, ahead of the steering column

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console

Liftgate Ajar Jamb Switch

Part of the liftgate latch assembly

Body Rear End Component Views

Body Rear End Connector End Views

Liftgate Lock Cylinder Switch

Bottom center of the liftgate

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Liftgate Window Release Actuator

Bottom center of the liftgate liftglass

Body Rear End Component Views

Body Rear End Connector End Views

Liftglass Relay

In the underhood fuse block

Electrical Center Identification Views in Wiring Systems

Electrical Center Identification Views in Wiring Systems

Park Brake Indicator Switch

On the park brake bracket

Hydraulic Brake Component Views in Hydraulic Brakes

Hydraulic Brake Connector End Views in Hydraulic Brakes

Rear Window Wiper Cutout and Liftglass Ajar Jamb Switch (Utility)

In the liftgate/endgate, near the latch

Wiper/Washer Component Views in Wipers/Washer Systems

Wiper/Washer Connector End Views in Wipers/Washer Systems

Rear Wiper/Washer and Endgate/Liftgate Window Release Switch

On the IP, to the left of the radio

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Wiper/Washer Connector End Views in Wipers/Washer Systems

Underhood Fuse Block

On the top of the left inner wheelwell

Power and Grounding Component Views in Wiring Systems

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Underhood Fuse Block Connector C1 (68 Cavities) (Body)

Below the underhood fuse block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Vehicle Control Module (VCM) (4.3L)

Right side of the engine compartment

Engine Controls Component Views in Engine Controls - 4.3L

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Vehicle Control Module (VCM) (4.3L) Connector C4 (24 Cavities)

Right side of the engine compartment

Engine Controls Component Views in Engine Controls - 4.3L

VCM Connector End Views in Engine Controls - 4.3L

C203 (116 Cavities)

Body harness to IP harness, to the right of the IP

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C411 (2 Cavities) (Utility w/ Endgate)

Body harness to endgate harness, to the rear of the left center of the body, at the endgate

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C413 (6 Cavities) (Utility w/ Endgate)

Body harness to endgate harness, to the rear left center of the body, at the endgate

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C426 (8 Cavities) (Utility w/ Liftgate)

Body harness to liftglass harness in-line connector, near the upper left corner of the liftgate

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C428 (8 Cavities) (Utility w/ Liftgate)

Body harness to liftgate harness, near the upper right corner of the liftgate

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C500 (4 Cavities) (w/o Power Locks/Windows)

Body harness to LF door harness, in the LF door

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C500 (22 Cavities) (w/ Power Locks/Windows)

Body harness to LF door harness, in the LF door

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C501 (16 Cavities) (4-Door Utility only)

Body harness to LF door harness, in the LF door

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G203

(CKT 1050) Body harness, to the right of the IP, between C203 and the splice packs

Harness Routing Views in Wiring Systems

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G204

(CKT 1050) Body harness, to the right of the IP, between C203 and the splice packs

Harness Routing Views in Wiring Systems

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G450 (Utility)

(CKT 1350) Body harness, in the LR body corner, near C403 to the tail lamp harness

Harness Routing Views in Wiring Systems

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P900 (Utility w/ Endgate)

Body to the endgate, between the body harness and the endgate

Harness Routing Views in Wiring Systems

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P901 (Utility w/ Liftgate)

Body to the LH liftgate harness, in the left side of the liftgate

Harness Routing Views in Wiring Systems

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P902 (Utility w/ Liftgate)

Body to RH liftgate harness, in the right side of the liftgate

Harness Routing Views in Wiring Systems

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S427 (Utility)

(CKT 1350, CKT 1450) LR body harness, 7 cm (2.8 in) below the breakout to the left tail lamp connector C403

Harness Routing Views in Wiring Systems

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S900

(CKT 1303) RH liftgate harness, 5 cm (1.9 in) before breakout to rear window washer pump motor

Harness Routing Views in Wiring Systems

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Splice Pack SP201

Body harness, to the left of the IP, below the IP fuse block, taped to the body harness, near P100

Harness Routing Views in Wiring Systems

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Splice Pack SP203

(CKT 1050) IP harness, on the IP, behind HVAC module, strapped to the body harness

Harness Routing Views in Wiring Systems

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