GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Body Control Module (BCM) (Luxury)

In the center floor console

Body Control System Component Views in Body Control System

Body Control System Connector End Views in Body Control System

Door Jamb Switch, Cargo

At the rear body opening, part of the right rear cargo door contactor

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Door Jamb Switch, Liftgate

Inside the liftgate door

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Door Jamb Switch, Left Front

At the left end of the IP

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Door Jamb Switch, Left Rear

At the center inside edge of the left side B Pillar

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Door Jamb Switch, Right Front

At the right end of the IP

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Door Jamb Switch, Right Rear

At the center inside edge of the right side B pillar

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Door Lock Inversion Module

Left side of the IP, inside the IP support bracket

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

EVO/Passlock Module

Located in the steering column

Standard Wheel/Column Component Views in Steering Wheel and Column

Standard Wheel/Column Connector End Views in Steering Wheel and Column

Instrument Cluster

On the upper left end of the IP, above the steering column

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

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

IP Fuse Block

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

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Powertrain Control Module (PCM)

Under RH end of IP, above blower motor, behind IP compartment box

Engine Controls Component Views in Engine Controls

PCM Connector End Views in Engine Controls

Security LED (Luxury)

Top center of the center floor console

Theft Deterrent System Component Views

Theft Deterrent System Connector End Views

Vehicle Control Module (VCM)

Engine compartment, near EBCM

Engine Controls Component Views in Engine Controls

VCM Connector End Views in Engine Controls

C200

Behind the right side of the IP, near the heater motor, in foam wrap

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C266

Part of the IP harness to steering column harness, to the left side of the steering column, near the bulkhead

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C298

Behind the left side of the IP, near the convenience center

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C302

At the LF kick panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C304 (Luxury)

IP harness, inline to floor console harness

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C305 (Luxury)

Cross body harness, inline to floor console harness

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G103 (Gas)

On the right front side of the engine, near the thermostat housing

Power and Grounding Component Views in Wiring Systems

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G104 (5.0L/5.7L)

Backside of the right cylinder head

Power and Grounding Component Views in Wiring Systems

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G104 (6.5L)

Top rear of the right cylinder head

Power and Grounding Component Views in Wiring Systems

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G104 (7.4L)

Backside of the engine block, below the right cylinder head

Power and Grounding Component Views in Wiring Systems

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G200

Behind the left side of the IP, below the fuse block, on the tie bar

Power and Grounding Component Views in Wiring Systems

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G202

On the right side of the instrument panel, mounted to the HVAC plenum bracket

Power and Grounding Component Views in Wiring Systems

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P101

In the right rear side of the engine compartment, at the bulkhead

Harness Routing Views in Wiring Systems

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S102 (6.5L)

Engine harness approx. 6.5 cm (2.5 in) from trans connector breakout, towards the starter solenoid harness breakout

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S103 (5.0L, 5.7L)

Engine harness, approx. 8 cm (3 in) from EGR valve breakout, toward taillamp harness breakout

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--

S103 (7.4L - A/T)

Engine harness, approx. 8 cm (3 in) from the EGR valve harness breakout, towards the ignition coil harness breakout

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--

S103 (7.4L - M/T)

Engine harness, approx. 4 cm (1.5 in) from the fuel injector harness breakout, towards the taillamp harness breakout

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--

S150

Engine harness, approx. 13 cm (5 in) from EBCM breakout

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--

S213

IP harness, approx. 4 cm (1.5 in) from steering column harness breakout, towards the DLC

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--

S215

IP harness, approx. 8 cm (3 in) from instrument cluster breakout, toward radio connectors breakout

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--

S259

Crossbody harness, approx. 7 cm (2.5 in) into seat belt switch harness, toward C212

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S262 (Crew Cab)

Crossbody harness, approx. 19 cm (7.5 in) from seat belt switch breakout, toward IP harness breakout

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S262 (Suburban/Utility)

Crossbody harness, approx. 25 cm (10 in) from seat belt switch breakout, toward IP harness breakout

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--

S280

IP harness, approx. 5 cm (2 in) from DLC breakout

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--

S298

IP harness, approx. 24 cm (9.5 in) from instrument cluster breakout, toward radio breakout

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S330

Floor console harness approx. 13 cm (5 in) from LH heated seat switch breakout

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S335

Floor console harness approx. 5 cm (2 in) from C304 harness breakout, towards the BCM

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S336

Floor console harness approx. 5 cm (2 in) from cross body incline connector harness breakout

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