GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Body Relay Block

To the right of the IP, near 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)

To the lower right of the IP

Data Link Communications Component Views in Data Link Communications

Data Link Communications Connector End Views in Data Link Communications

Engine Oil Pressure Gauge Sensor

Top rear of the engine, below the distributor

Engine Controls Component Views in Engine Controls

Engine Controls Connector End Views in Engine Controls

Hazard Switch

Center of the IP, next to the radio

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Lighting Systems Connector End Views in Lighting Systems

Instrument Cluster

In the IP, ahead of the steering column

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

Inflatable Restraint Sensing and Diagnostic Module (SDM)

Between the front seats below the console

SIR Component Views in SIR

SIR Connector End Views in SIR

IP Fuse Block

To the right of the IP, near the right front door jamb switch

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Underhood Fuse Block

On the top of the right inner wheelwell near the battery

Power and Grounding Component Views in Wiring Systems

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Underhood Fuse Block Connector C1 (68 Cavities)

Below the underhood fuse block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Underhood Fuse Block Connector C2 (68 Cavities)

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)

To the left of the engine compartment

Engine Controls Component Views in Engine Controls

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Vehicle Control Module (VCM) Connector C2 (32 Cavities)

To the left of the engine compartment

Engine Controls Component Views in Engine Controls

VCM Connector End Views in Engine Controls

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

To the left of the engine compartment

Engine Controls Component Views in Engine Controls

VCM Connector End Views in Engine Controls

C101 (8 Cavities)

The engine harness to the body harness, to the left of the engine compartment, near the VCM

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Inline Harness Connector End Views in Wiring Systems

C203 (116 Cavities)

The body harness to the IP harness, to the left of the IP

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Inline Harness Connector End Views in Wiring Systems

G105

(CKT 451) At the engine harness, to the right rear of the cylinder head

Power and Grounding Component Views in Wiring Systems

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G203

(CKT 1850) At the body harness, to the right front of the IP

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G204

(CKT 1850) At the body harness, to the right front of the IP

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P100

At the IP bulkhead pass-through, to the right rear of the engine compartment, on the cowl

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S152

(CKT 351, CKT 451) At the engine harness, between the breakouts for the left rear and the right rear engine block grounds, 15 cm (5.9 in) from the breakout to the right rear engine grounds

Power and Grounding Component Views in Wiring Systems

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S205

(CKT 1220) At the IP harness, between the breakouts for the instrument cluster connector and BCM connector C3, 6.5 cm (2.6 in) from the breakout to the BCM connector

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S211

(CKT 1850) At the body harness, 6.5 cm (2.6 in) from G203, G204, and G205 ground breakout and the ground terminals

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S218

(CKT 451) At the body harness, 10.5 cm (4.2 in) from the BCM connector breakout toward C203

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S224

(CKT 451) At the IP harness, between the breakouts for the BCM C3 and the radio connector, 19.5 cm (7.8 in) from the BCM C3 breakout

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S225

(CKT 1414) At the IP harness, between the breakouts for the BCM C3 and the radio connector, 13 cm (5.2 in) from the BCM C3 breakout

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S226

(CKT 1415) At the IP harness, between the breakouts for the BCM C3 and the radio connector, 6.5 cm (2.6 in) from the BCM C3 breakout

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S287

(CKT 340) At the IP harness, between the breakouts for the BCM C3 and the radio connector, 9 cm (3.6 in) from the radio connector breakout

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Splice Pack SP203

In the IP harness on the IP, behind the ashtray

Harness Routing Views in Wiring Systems

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