GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Auxiliary Side Front Turn Signal Lamp, Left

On the left side of the front fender

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Auxiliary Side Front Turn Signal Lamp, Right

On the right side of the front fender

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Center High Mounted Stop Lamp

At the top rear center of the vehicle

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Convenience Center

Under the IP, on the left side

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Data Link Connector (DLC)

Under the left side of the IP

Data Link Communications Component Views in Wiring Systems

Data Link Communications Connector End Views in Wiring Systems

Daytime Running Lamp (DRL) Control Module

Under the left side of the IP, taped on the IP harness

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Door Jamb Switch, Left Front

Part of the door jamb latch, on the left front inner door

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Door Jamb Switch, Right Front

Part of the door jamb latch, on the right front inner door

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Door Jamb Switch, Right Rear

Part of the door jamb latch, on the right rear inner door

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Door Jamb Switch, Side

In the center of the right B pillar

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Door Lock Actuator Motor, Left Front

Attached to the interior of the left front door

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Door Lock Actuator Motor, Rear

Attached to the interior of the rear door

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Door Lock Actuator Motor, Right Front

Attached to the interior of the right front door

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Door Lock Actuator Motor, Side

Attached to the interior of the side door

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Electronic Brake Control Module (EBCM)

On the left frame rail, near the center of the vehicle

Antilock Brake System Component Views in Antilock Brake System

Antilock Brake System Connector End Views in Antilock Brake System

EVO/Passlockā„¢ Module

Below the center of the IP

Theft Deterrent System Component Views

Theft Deterrent System Connector End Views

EVO/Passlockā„¢ Sensor

Internal to the steering column

Theft Deterrent System Component Views

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In-line Fuse, Left

In the left body harness, under the left side of the instrument panel

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

In-line Fuse, Right

In the left body harness, under the left side of the instrument panel

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Instrument Cluster

On the left side of the IP

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

IP Fuse Block

In the left lower kick panel

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Lighting Control Relay

IP harness, approximately 130 cm (52 in) from the passenger SIR breakout

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Park and Turn Signal Lamp, Left Front (Base)

In the left front corner of the vehicle

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Park and Turn Signal Lamp, Left Front, Inner

In the left front corner of the vehicle

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Park and Turn Signal Lamp, Left Front, Outer

In the left front corner of the vehicle

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Park and Turn Signal Lamp, Left Rear

In the left rear corner of the vehicle, part of the taillamp assembly

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Park and Turn Signal Lamp, Right Front (Base)

In the right front corner of the vehicle

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Park and Turn Signal Lamp, Right Front, Inner

In the right front corner of the vehicle

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Park and Turn Signal Lamp, Right Front Outer

In the right front corner of the vehicle

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Park and Turn Signal Lamp, Right Rear

In the right rear corner of the vehicle, part of the taillamp assembly

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Position Lamp, Left

Part of the headlamp assembly, on the left front corner of the vehicle

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Position Lamp, Right

Part of the headlamp assembly, on the right front corner of the vehicle

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Power Door Lock Control Module

In the left kick panel

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Power Door Lock Relay

Behind the IP, in the center of the bulkhead

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Power Door Lock Switch, Left Front

Attached to the interior of the left front door accessory mount plate

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Power Door Lock Switch, Right Front

Attached to the interior of the right front door accessory mount plate

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Power Door Lock, Rear

Attached to the interior of the right rear door panel

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Powertrain Control Module (PCM)

Behind the center of the IP

Engine Controls Component Views in Engine Controls

Powertrain Control Module Connector End Views in Engine Controls

Rear License Plate Lamp

Part of the rear bumper

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Side Door Contact

In the right B pillar

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

TCC/Stoplamp Switch

Below the center of the IP, near the brake pedal lever

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Vehicle Control Module (VCM)

In the engine compartment, on the left fender

Engine Controls Component Views or Engine Controls Component Views or Engine Controls Component Views in Engine Controls

VCM Connector End Views or VCM Connector End Views or VCM Connector End Views in Engine Controls

Vehicle Immobilizer Module (VIM)

In the crossbody harness, behind the instrument panel, in the right center of the bulkhead

Theft Deterrent System Component Views

Theft Deterrent System Connector End Views

C100

In the left rear of the engine compartment at the bulkhead

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C102

In the left side of the engine compartment, near the fender well

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C200

Steering column harness at the base of the column

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C202

Left body harness, under the left side of the IP, near the brake pedal, at the convenience center

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C207

Crossbody harness, in the convenience center, under the IP, on the left side

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C210

Crossbody harness, under the left side of the IP, near the brake pedal, at the convenience center

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C211

Crossbody harness, under the left kick panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C212

Behind the right kick panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C300

Right body harness, behind the right kick panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C400

In the right rear corner of the interior of the cabin, behind the rear wheel house

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C401

Right taillamp harness, in the left rear of the vehicle, behind the lens assembly

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C404

Left taillamp harness, in the left rear of the vehicle, behind the lens assembly

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C406

In the right rear corner of the interior of the cabin, behind the rear wheel house

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C909

Behind the rear bumper

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G101

Engine harness, near the thermostat housing

Harness Routing Views in Wiring Systems

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G108

In the left side of the engine compartment, near the fender well

Harness Routing Views in Wiring Systems

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G109

In the right side of the engine compartment, near the fender well

Harness Routing Views in Wiring Systems

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G201

IP harness, behind the left kick panel, near the IP fuse block

Harness Routing Views in Wiring Systems

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G400

In the left rear corner of the interior of the cabin, behind the rear wheel house

Harness Routing Views in Wiring Systems

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G401

In the right rear corner of the interior of the cabin, behind the rear wheel house

Harness Routing Views in Wiring Systems

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G402

In the right rear corner of the interior of the cabin, behind the rear wheel house

Harness Routing Views in Wiring Systems

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P100

In the left rear of the engine compartment, at the bulkhead

Harness Routing Views in Wiring Systems

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P400

In the right rear corner of the interior of the cabin, behind the rear wheel house, on the floor board

Harness Routing Views in Wiring Systems

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P500

At the left front door

Harness Routing Views in Wiring Systems

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P600

At the right front door

Harness Routing Views in Wiring Systems

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P901

At the right rear door

Harness Routing Views in Wiring Systems

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P902

At the left rear door

Harness Routing Views in Wiring Systems

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P903

On the left taillamp harness, in the left rear of the vehicle, behind the lens assembly

Harness Routing Views in Wiring Systems

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P904

On the right taillamp harness, in the left rear of the vehicle, behind the lens assembly

Harness Routing Views in Wiring Systems

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S102 (4.3L)

In the engine harness, approximately 104 cm (41 in) from the underhood fuse-relay center, toward the A/C compressor breakout

Harness Routing Views in Wiring Systems

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S102 (5.0L, 5.7L)

In the engine harness, approximately 4 cm (2 in) from the A/C compressor breakout, toward the MAF sensor breakout

Harness Routing Views in Wiring Systems

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S102 (6.5L)

In the engine harness, approximately 4 cm (2 in) from the main harness breakout, that leads to the blower motor, toward the C100 breakout

Harness Routing Views in Wiring Systems

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S102 (7.4L)

In the engine harness, approximately 4 cm (2 in) from the main harness that leads to the A/C compressor breakout, toward the generator breakout

Harness Routing Views in Wiring Systems

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S110

In the forward lamp harness, approximately 19 cm (7 in) into the left forward lamp breakout

Harness Routing Views in Wiring Systems

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S112

In the IP harness, approximately 40 cm (7 in) from C100, toward P102

Harness Routing Views in Wiring Systems

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S114

In the IP harness, approximately 17 cm (7 in) from C100, toward IP fuse block

Harness Routing Views in Wiring Systems

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S118

In the forward lamp harness, approximately 22 cm (9 in) into the right forward lamp breakout

Harness Routing Views in Wiring Systems

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S135

In the forward lamp harness, approximately 26 cm (10 in) from the left forward lamp breakout, toward the right forward lamp breakout

Harness Routing Views in Wiring Systems

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S153 (4.3L)

In the engine harness, approximately 4 cm (2 in) from the A/C compressor breakout, toward the transmission

Harness Routing Views in Wiring Systems

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S153 (5.0L, 5.7L)

In the engine harness, approximately 8 cm (3 in) from the ignition coil breakout, toward the transmission

Harness Routing Views in Wiring Systems

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S153 (6.5L)

In the engine harness, approximately 27 cm (11 in) from the main harness breakout, that leads to the underhood fuse relay center and C100

Harness Routing Views in Wiring Systems

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S153 (7.4L)

In the engine harness, approximately 4 cm (2 in) from the C100 breakout, toward the EGR sensor breakout

Harness Routing Views in Wiring Systems

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S201

In the IP harness, approximately 4 cm (2 in) from the park brake warning switch breakout, toward the data link connector (DLC) breakout

Harness Routing Views in Wiring Systems

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S203

In the IP harness, approximately 17 cm (2 in) from the radio breakout, toward right side of vehicle

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S206

In the crossbody harness, approximately 4 cm (2 in) from the C210 breakout, toward the power door lock relay breakout

Harness Routing Views in Wiring Systems

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S207

In the IP harness, approximately 4 cm (2 in) into the VSS buffer breakout

Harness Routing Views in Wiring Systems

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S216

In the IP harness, approximately 8 cm (3 in) from the C200 breakout, toward the instrument cluster breakout

Harness Routing Views in Wiring Systems

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S221

In the IP harness, approximately 4 cm (2 in) into the power seat breakout

Harness Routing Views in Wiring Systems

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S225

In the IP harness, approximately 4 cm (2 in) into the headlamp switch breakout

Harness Routing Views in Wiring Systems

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S228

In the crossbody harness, approximately 11 cm (4 in) from the C210 breakout, toward the power door lock relay breakout

Harness Routing Views in Wiring Systems

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S236

In the IP harness, approximately 4 cm (2 in) from the DLC breakout, toward the C200 breakout

Harness Routing Views in Wiring Systems

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S237

In the IP harness, approximately 4 cm (2 in) from the C200 breakout, toward the instrument cluster breakout

Harness Routing Views in Wiring Systems

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S241

In the crossbody harness, approximately 29 cm (11 in) from the C212 breakout, toward the power door lock relay breakout

Harness Routing Views in Wiring Systems

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S242

In the crossbody harness, approximately 23 cm (9 in) from the C212 breakout, toward the power door lock relay breakout

Harness Routing Views in Wiring Systems

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S243 (Upfitters Provision)

In the crossbody harness, approximately 4 cm (2 in) from the C212 breakout, toward the C214 breakout

Harness Routing Views in Wiring Systems

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S244

In the crossbody harness, approximately 13 cm (5 in) from the C212 breakout, toward C300

Harness Routing Views in Wiring Systems

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S246

In the IP harness, approximately 25 cm (10 in) from the HVAC switch breakout, toward the instrument cluster breakout

Harness Routing Views in Wiring Systems

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S300

In the right body harness, approximately 7 cm (3 in) from the power seat switch breakout, toward the side door jamb switch breakout

Harness Routing Views in Wiring Systems

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S303

In the right body harness, approximately 7 cm (3 in) from the side door jamb switch breakout, toward the side door breakout

Harness Routing Views in Wiring Systems

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S314

In the right body harness, approximately 26 cm (10 in) from the side door jamb switch breakout, toward the power seat switch breakout

Harness Routing Views in Wiring Systems

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S315

In the right body harness, approximately 19 cm (7 in) from the side door jamb switch breakout, toward the power seat switch breakout

Harness Routing Views in Wiring Systems

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S401

In the left body harness, approximately 7 cm (3 in) from the connector C401 breakout, toward the connector C406 breakout

Harness Routing Views in Wiring Systems

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S900

In the right taillamp harness, approximately 11 cm (4 in) from pass-through P904, toward the backup lamp breakout

Harness Routing Views in Wiring Systems

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S902

In the rear bumper harness, approximately 11 cm (4 in) into the rear fog lamp breakout

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S907

In the rear bumper harness, approximately 18 cm (7 in) from the left license lamp breakout

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S909

In the right taillamp harness, approximately 7 cm (3 in) from pass-through P904, toward the backup lamp breakout

Harness Routing Views in Wiring Systems

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S910

In the right taillamp harness, approximately 7 cm (3 in) from pass-through P904, toward the backup lamp breakout

Harness Routing Views in Wiring Systems

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