GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Body Control Module (BCM)

Lower center of the IP, above the drive shaft tunnel

Body Control System Component Views in Body Control System

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

Lower center of the IP, above the drive shaft tunnel

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 center of the IP, above the drive shaft tunnel

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 center of the IP, above the drive shaft tunnel

Body Control System Component Views in Body Control System

Body Control System Connector End Views in Body Control System

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 Handle Switch, LH

Part of the door latch assembly

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Door Handle Switch, RH

Part of the door latch assembly

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Door Lock Cylinder Switch, LH

Part of the door latch assembly

Power Door Systems Component Views in Doors

Theft Deterrent System Connector End Views

Door Lock Cylinder Switch, RH

Part of the door latch assembly

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Ignition Key Alarm Switch

At the ignition switch, part of the lock module

Theft Deterrent System Component Views

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Liftgate Ajar Jamb Switch

Part of the liftglass latch assembly

Body Rear End Component Views in Body Rear End

Body Rear End Connector End Views in Body Rear End

Passlockā„¢ Sensor

At the ignition switch, part of the lock module

Theft Deterrent System Component Views

Theft Deterrent System Connector End Views

Powertrain Control Module (PCM) (2.2L)

On the right side of the engine compartment

Engine Controls Component Views in Engine Controls - 2.2L

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Powertrain Control Module (PCM) Connector C1 (2.2L)

On the right side of the engine compartment

Engine Controls Component Views in Engine Controls - 2.2L

Powertrain Control Module Connector End Views in Engine Controls - 2.2L

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

Side Door Jamb Switch, LF

Left side of the IP

Body Control System Component Views in Body Control System

Body Control System Connector End Views in Body Control System

Side Door Jamb Switch, RF

Right side of the IP

Body Control System Component Views in Body Control System

Body Control System Connector End Views in Body Control System

Side Door Jamb Switch, LR

In the left B-pillar

Body Control System Component Views in Body Control System

Body Control System Connector End Views in Body Control System

Side Door Jamb Switch, RR

In the right B-pillar

Body Control System Component Views in Body Control System

Body Control System Connector End Views in Body Control System

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

C101 (16 Cavities) (2.2L)

Engine harness to body harness, right of the engine compartment, near the PCM

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C101 (10 Cavities) (4.3L)

Engine harness to body harness, right of the engine compartment, near the VCM

Harness Routing Views

in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

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

C211 (48 Cavities)

Body harness to steering column harness, in front of the IP, near the steering column

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

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

C601 (4 Cavities) (w/o Power Locks/Windows)

Body harness to RF door harness, in the RF door

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C601 (22 Cavities) (w/ Power Locks/Windows)

Body harness to RF door harness, in the RF door

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G200

(CKT 1850) Body harness, to the LF of the IP, above P100

Harness Routing Views in Wiring Systems

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G201

(CKT 1850) Body harness, to the LF of the IP, above P100, above G200 and G202

Harness Routing Views in Wiring Systems

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G202

(CKT 1850) Body harness, to the LF of the IP, above P100

Harness Routing Views in Wiring Systems

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G203

(CKT 1050) Body harness, to the right of the IP, between C203 and the splice packs, breakout from harness attached to bulkhead (RH side)

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, breakout from harness attached to bulkhead (LH side)

Harness Routing Views in Wiring Systems

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G205

(CKT 1050) Body harness, to the right of the IP, between C203 and the splice packs, breakout from harness attached to bulkhead (RH side)

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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P100

IP bulkhead pass-through, LR of the engine compartment, on the cowl

Harness Routing Views in Wiring Systems

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P500

Body harness to the LF door pass-through, between the body and the LF door

Harness Routing Views in Wiring Systems

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P600

Body harness to RF door pass-through, between the body and the RF door

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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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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S305 (4-Door Utility)

(CKT 727) Body harness, on the breakout to the RR door, on the pillar, 7 cm (2.8 in) below the harness clip, body harness, on the breakout to the RR door, 45 cm (17.7  in) before C306

Harness Routing Views in Wiring Systems

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S427 (Utility)

(CKT 1350, CKT 1450) Body harness, 7 cm (2.8 in) from the breakout to the left tail lamp connector C403

Harness Routing Views in Wiring Systems

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S501

(CKT 1850) LH door harness, between breakout to door speaker and door lock and side window switch

Harness Routing Views in Wiring Systems

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S601

(CKT 1050) RH door harness

Harness Routing Views in Wiring Systems

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S900

(CKT 1303) RH liftgate harness, clipped to liftgate window release actuator bracket

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 SP202

(CKT 379, CKT 1850) Strapped to the body harness, at the left center of the IP

Harness Routing Views in Wiring Systems

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Splice Pack SP203

(CKT 1050) IP harness, on the IP, behind HVAC controls

Harness Routing Views in Wiring Systems

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Splice Pack SP204

(CKT 584, CKT 1414, CKT 1415, CKT 1050) Strapped to the body harness, in the right front of the IP, to the left of SP200

Harness Routing Views in Wiring Systems

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