GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Ashtray Lamp

Center of IP, mounted to the back of the ashtray

Power and Grounding Component Views in Wiring Systems

Lighting Systems Connector End Views

Auxiliary Heater-A/C Control (4 Door)

Part of the left rear armrest

HVAC Component Views in HVAC Systems with A/C-Manual

HVAC Connector End Views in HVAC Systems with A/C-Manual

Auxiliary Heater-A/C Control (5 Door)

Part of the rear roof console, behind the driver seat

HVAC Component Views in HVAC Systems with A/C-Manual

HVAC Connector End Views in HVAC Systems with A/C-Manual

Backup Lamps

Part of the taillamps

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Body Control Module (BCM)

Below the right side of the IP, right of the IP compartment

Body Control System Component Views in Body Control System

Body Control System Connector End Views in Body Control System

Cargo Lamp

Above the liftgate, on the roof headliner

Lighting Systems Component Views

Lighting Systems Connector End Views

Center High Mounted Stop Lamp (CHMSL)

Center, top of liftgate

Lighting Systems Component Views

Lighting Systems Connector End Views

Daytime Running Lamp (DRL) Ambient Light Sensor

Center of IP, secured to the upper trim pad, near the windshield defrost vent

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Lighting Systems Connector End Views

Daytime Running Lamps (DRL) Control Module

Right of the steering column, behind the IP

Lighting Systems Component Views

Lighting Systems Connector End Views

Dome Lamp

Center of the roof headliner

Lighting Systems Component Views

Lighting Systems Connector End Views

Driver Information Display

In the roof console

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

Fog Lamp Relay

Engine compartment, in the underhood accessory wiring junction block

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Fog Lamps

On the front of the vehicle

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Fuse Block

Right side of the IP, in the right front door opening

Power and Grounding Component Views in Wiring Systems

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Hazard Lamp/Turn Signal Flasher

Below the IP, above the base of the steering column, left side 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

Headlamp Dimmer Switch

Part of the turn signal switch, mounted to the steering column

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--

Headlamp and IP Lamp Dimmer Switch

Left of the instrument cluster

Lighting Systems Component Views

Lighting Systems Connector End Views

Headlamps

Front of the vehicle

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Heater-A/C Control

Center of the IP, below the radio

HVAC Component Views in HVAC Systems with A/C-Manual

HVAC Connector End Views in HVAC Systems with A/C-Manual

Inflatable Restraint Steering Wheel Module Coil

Center of the steering wheel, behind the inflatable restraint steering wheel module

SIR Component Views in SIR

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Instrument Cluster

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 HVAC Systems with A/C-Manual

Interior Lamp and Multi-function Switch

Center in front of the roof headliner

Lighting Systems Component Views

Lighting Systems Connector End Views

Interior Lamps Override Switch

Part of the interior lamp and multi-function switch, in front of the roof headliner

Lighting Systems Component Views

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IP Compartment Lamp Switch

Inside of the IP compartment, part of the IP compartment lamp

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Lighting Systems Connector End Views

Left Fog Lamp

Front left side of the vehicle

Lighting Systems Component Views

Lighting Systems Connector End Views

Left Front Door Lock

Inside, rear end of the left front door

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Left Front Door Lock Switch

In the left front door armrest

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Left Front Key Lock Switch

Inside the left front door, near the lock cylinder

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--

Left Front Park/Turn Lamp

In front of the vehicle, next to the headlamp

Lighting Systems Component Views

Lighting Systems Connector End Views

Left Front Roof Rail Reading Lamp

Left side of the headliner between the left B and left C-pillars

Lighting Systems Component Views

Lighting Systems Connector End Views

Left Front Side Marker Lamp

Front of the vehicle, left side

Lighting Systems Component Views

Lighting Systems Connector End Views

Left Front Window Switch

In the armrest of the left front door

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Left Headlamp

Front left side of the vehicle

Lighting Systems Component Views

Lighting Systems Connector End Views

Left Instrument Panel (IP) Courtesy Lamp

Below left side of the IP, near the park brake

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Lighting Systems Connector End Views

Left Rear Roof Rail Reading Lamp

Left side of the roof headliner, behind the left C-pillar and the left D-pillars

Lighting Systems Component Views

Lighting Systems Connector End Views

Left Sliding Door Jamb Switch

Mounted to the rear opening of the left rear side door

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Left Sunshade Lighted Vanity Mirror

Part of the left sunshade

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Lighting Systems Connector End Views

Left Taillamp

Rear of the vehicle, left side

Lighting Systems Component Views

Lighting Systems Connector End Views

Left Tail/Stop Lamp

Rear of the vehicle, inside the left taillamp

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License Lamps

Rear of the vehicle, above the license plate

Stationary Windows Component Views in Stationary Windows

Lighting Systems Connector End Views

Radio

Center of the IP console

Entertainment Component Views in Entertainment Systems

Entertainment Connector End Views in Entertainment Systems

Radio Control Switches

Left and right sides of the inflatable restraint steering wheel module

SIR Component Views in SIR

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Radio Rear Seat Audio Control (4 Door)

Part of the left rear armrest

HVAC Component Views in HVAC Systems with A/C-Manual

Entertainment Connector End Views in Entertainment Systems

Radio Rear Seat Audio Control (5 Door)

Part of the rear roof console, above the driver seat

HVAC Component Views in HVAC Systems with A/C-Manual

Entertainment Connector End Views in Entertainment Systems

Radio Rear Seat Audio Control (WU3)

Part of the rear roof console, above the right passenger seat

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Rear Fog Lamps

On the rear of the vehicle

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Rear Window Wiper Motor

Center of the liftgate

Stationary Windows Component Views in Stationary Windows

Wiper/Washer Connector End Views in Wiper/Washer Systems

Rear Window Wiper/Washer and Multi-function Switch

Center of the IP, below the radio

Wiper/Washer Component Views in Wiper/Washer Systems

Wiper/Washer Connector End Views in Wiper/Washer Systems

Rear Window Wiper/Washer Switch

Part of the rear window wiper/washer and multi-function switch, center of the IP, below the radio

Wiper/Washer Component Views in WIper/Washer Systems

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Relay Center

Right side of IP, mounted to the bracket along with the BCM, near the rear top right side of the IP compartment

Body Control System Component Views in Body Control System

Lighting Systems Connector End Views

Right Fog Lamp

Front right side of the vehicle

Lighting Systems Component Views

Lighting Systems Connector End Views

Right Front Door Lock

Inside, rear end of the right front door

Power Door Systems Component Views in Doors

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Right Front Door Lock Switch

In the right front door armrest

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Right Front Park/Turn Lamp

Front of the vehicle, next to the headlamp

Lighting Systems Component Views

Lighting Systems Connector End Views

Right Front Side Marker Lamp

Front of the vehicle, right side

Lighting Systems Component Views

Lighting Systems Connector End Views

Right Front Window Switch

In the armrest of the right front door

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Right Headlamp

Front right side of the vehicle

Lighting Systems Component Views

Lighting Systems Connector End Views

Right IP Courtesy Lamp

Below the right side of the IP

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Lighting Systems Connector End Views

Right Rear Door Latch Release Actuator Switch

Middle of the right B-pillar

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Right Rear Roof Rail Reading Lamp

Right side of the roof headliner, between the right C-pillar and the right D-pillars

Lighting Systems Component Views

Lighting Systems Connector End Views

Right Sliding Door Jamb Switch

Mounted to the rear opening of the right rear side door

Power Door Systems Component Views in Doors

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Right Sunshade Lighted Vanity Mirror

Part of the right sunshade

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Lighting Systems Connector End Views

Right Taillamp

Rear of the vehicle, right side

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Lighting Systems Connector End Views

Second Seat Audio (SSA) Control

Overhead console, right side of video screen

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Stop Lamp Switch

Mounted to the brake pedal support

Antilock Brake System Component Views in Antilock Brakes Systems

Cruise Control Connector End Views in Cruise Control

Theft Deterrent Relay

Part of the relay center, right side of the IP, mounted to the bracket along with the BCM, near the rear top right side of the IP compartment

Body Control System Component Views in Body Control System

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Trailer Wiring Harness

Under the left right side of the vehicle, near the left rear wheelhouse

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Transaxle Range Switch

Rear left side of the engine compartment, mounted to the top of the transaxle

Automatic Transmission Electronic Component Views in Transmission

Engine Controls Connector End Views in Engine Controls

Turn Signal Lever (Cruise Control Switch)

Left side of the steering column, part of the turn signal switch

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Turn Signal Switch (& Headlamp Dimmer & Windshield Wiper & Windshield Washer)

Inside the steering column

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Underhood Accessory Wiring Junction Block

Engine compartment, front of the right wheelhouse, above the battery

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Windshield Header Courtesy/Reading Lamp

Part of the roof console

Lighting Systems Component Views

Lighting Systems Connector End Views

C120 (3 cavities)

IP wiring harness to the forward lamp wiring harness, between the battery and the windshield fluid reservoir

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C200 (56 cavities)

IP wiring harness to the right side of the body wiring harness, behind the right side of the IP compartment, below P100

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C201 (48 cavities)

IP wiring harness to the steering column wiring harness, mounted to the left side of the steering column near the base

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C203 (56 cavities)

IP wiring harness to the left side of the body wiring harness, left side of the steering column, below P101

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C205 (4 cavities)

IP wiring harness to the steering wheel radio control wiring harness, mounted to the left side of the steering column near the base

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C302 (16 cavities)

Body wiring harness to the right front side door wiring harness, behind the right kick panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C303 (16 cavities)

Body wiring harness to the left front side door wiring harness, behind the left kick panel, left of the parking brake

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C308 (23 cavities)

Body wiring harness to the dome lamp wiring harness, inside the right B-pillar, behind the lower trim

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C400 (2 cavities)

Body wiring harness to the liftgate wiring harness, above the right rear side of the roof headliner, near P406 and the liftgate

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C402 (8 cavities)

Body wiring harness to the liftgate wiring harness, above the right rear side of the roof headliner, near P406 and the liftgate

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C405 (10 cavities)

Body wiring harness to the auto level control wiring harness, behind the left quarter panel, behind the left rear wheelhouse

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C407 (6 cavities)

Auto level control wiring harness to the trailer rear wiring harness, beneath the vehicle, near P403, near the left rear wheelhouse

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G101

Front of the vehicle, right of the left headlamp, on the front upper crossmember

Harness Routing Views in Wiring Systems

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G102

Right side of the engine compartment, right inner fender, near the battery

Harness Routing Views in Wiring Systems

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G200

Right side of the IP, secured on the underside of the cross car beam, left of the heater-A/C vent

Harness Routing Views in Wiring Systems

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G201

Left side of the IP, secured on the underside of the cross car beam, above the park brake assembly

Harness Routing Views in Wiring Systems

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G302

Secured near the base of the right B-pillar

Harness Routing Views in Wiring Systems

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G401

Secured to the lower left D-pillar

Harness Routing Views in Wiring Systems

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P100

On the right side of the bulkhead, left of the right strut tower

Harness Routing Views in Wiring Systems

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P101

On the left side of the bulkhead, right of the left strut tower

Harness Routing Views in Wiring Systems

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P400

Behind the right taillamp

Harness Routing Views in Wiring Systems

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P401

Behind the left taillamp

Harness Routing Views in Wiring Systems

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P403

Behind the left wheelhouse

Harness Routing Views in Wiring Systems

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P406

Between the right side of the liftgate and the roof

Harness Routing Views in Wiring Systems

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P500

Between the left A-pillar and the left front door

Harness Routing Views in Wiring Systems

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P600

Between the right A-pillar and the right front door

Harness Routing Views in Wiring Systems

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S123

Forward lamp harness, right front of the vehicle approximately 10 cm (4 in) from the right fog lamp breakout

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S124

Forward lamp harness, left front of the vehicle approximately 7 cm (3 in) from the left fog lamp breakout

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S203

IP harness, right side of the IP approximately 9 cm (4 in) from the radio breakout

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S204

IP harness, right side of the IP approximately 10 cm (4 in) from the radio breakout

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S205

IP harness, left side of the IP approximately 8 cm (3 in) from the hazard lamp/turn signal flasher breakout

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S209

IP harness, center of the IP approximately 8 cm (3 in) from the security indicator lamp breakout

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S211

IP harness, left side of the IP approximately 18 cm (7 in) from the radio and the rear window wiper/washer and multi-function switch breakout

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S213

IP harness, center of IP approximately 68 cm (27 in) from the cigar lighter

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S215

IP harness, left side of IP approximately 13 cm (5 in) from headlamp switch breakout

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S219

IP harness, left side of the IP approximately 10 cm (4 in) from the radio and the rear window wiper/washer and multi-function switch breakout

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S221

IP harness, left side of the IP approximately 4 cm (2 in) from the headlamp switch breakout

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S223

IP harness, left side of the IP approximately 6 cm (2 in) from the radio and rear window wiper/washer and multi-function switch breakout

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S227

IP harness, center of the IP approximately 4 cm (2 in) from the security indicator lamp breakout

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S230

IP harness, right side of the IP approximately 4 cm (2 in) from the radio breakout

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S233

IP harness, left side of the IP approximately 4 cm (2 in) from the radio breakout

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S242

IP harness, left side of the IP approximately 14 cm (6 in) from the radio and the rear window wiper/washer and multi-function switch breakout

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S247

IP harness, center of the IP approximately 31 cm (12 in) from the radio

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S259

IP harness, right side of the IP approximately 3 cm (1 in) from the cigar lighter breakout

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S264

IP harness, right side of the IP approximately 16 cm (6 in) from the relay center breakout

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S272

IP harness, right side of the IP approximately 2 cm (1 in) from the relay center breakout

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S284

IP harness, right side of the IP approximately 6 cm (2 in) from P100

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S303

Body harness, front of the right B-pillar approximately 26 cm (10 in) from the inflatable restraint sensing and diagnostic module breakout

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S309

Body harness, forward of the right front door approximately 7 cm (3 in) from the C302 breakout

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S320

Body harness, near the base of the right B-pillar approximately 33 cm (13 in) forward of the right door lock switch plate (pillar mounted, plunger) breakout

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S325

Body harness, front of the left B-pillar approximately 7 cm (3 in) from the left sliding door jamb switch breakout

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S331

Body harness, front of the left B-pillar approximately 59 cm (23 in) from the G301 breakout

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S390

Roof harness, overhead console approximately 10 cm (4 in) from the right sunshade lighted vanity mirror breakout

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S393

Roof harness, right side of the overhead console approximately 20 cm (8 in) from the G302 breakout

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S395

Roof harness, right side of the overhead console approximately 13 cm (5 in) from the G302 breakout

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S397

Roof harness, right side of the overhead console approximately 7 cm (3 in) from the G302 breakout

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S403

Body harness, left rear of the body on top of the wheel well approximately 13 cm (5 in) from the top and rear clips

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S405

Body harness, left rear of the body approximately 4 cm (2 in) from the P401 breakout

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S406

Body harness, left rear of the body approximately 17 cm (7 in) from the P401 breakout

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S407

Body harness, left rear of the body approximately 13 cm (5 in) from the P401 breakout

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S411

Body harness, left rear of the body approximately 7 cm (3 in) from the P401 breakout

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S415

Body harness, left rear of the body approximately 11 cm (4 in) from the P401 breakout

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S419

Body harness, left rear of the body approximately 21 cm (8 in) from the P401 breakout

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S431

Body harness, left rear of the body approximately 4 cm (2 in) from the P401 breakout

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S435

Body harness, left rear of the body approximately 26 cm (10 in) from the P401 breakout

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S441

Auto level control harness, left rear of the body approximately 24 cm (9 in) from P403

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S445

Auto level control harness, left rear of the body approximately 16 cm (6 in) from P403

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S457

Liftgate harness, center of the liftgate approximately 7 cm (3 in) from the liftgate lock (door ajar switch) breakout

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S460

Liftgate harness center of the liftgate approximately 7 cm (3 in) from the door lock cylinder switch breakout

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S504

Left door harness, left door approximately 10 cm (4 in) from the left window switch breakout

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S506

Left door harness, left door approximately 35 cm (3 in) from the left window switch

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S604 (w/AB5)

Right door harness, right door approximately 10 cm (4 in) from the right window switch breakout

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S604 (w/o AB5)

Right door harness, between P600 and the right front speaker breaker

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S606

Right door harness, right door approximately 35 cm (13 in) from the right window switch

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