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

Lighting Systems Component Views

Lighting Systems Connector End Views

Auxiliary Heater-A/C Control (Auxiliary Blower Switch) (4 Door)

Part of the left rear armrest

HVAC Component Views

HVAC Connector End Views

Auxiliary Heater-A/C Control (Temperature Control) (4 Door)

Part of the left rear armrest

HVAC Component Views

HVAC Connector End Views

Auxiliary Heater-A/C Control (Auxiliary Blower Switch) (5 Door)

Part of the rear roof console, behind the driver seat

HVAC Component Views

HVAC Connector End Views

Auxiliary Heater-A/C Control (Temperature Control) (5 Door)

Part of the rear roof console, behind the driver seat

HVAC Component Views

HVAC Connector End Views

Backup Lamps

Part of the taillamps

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Backup Lamp Relay

Right side of steering column, behind IP

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Lighting Systems Connector End Views

Body Control Module (BCM)

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

Body Control System Component Views

Body Control System Connector End Views

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

Theft Deterrent System Component Views

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

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Engine Oil Pressure Indicator Switch

Front of the engine, above the starter

Engine Controls Component Views

Engine Controls Connector End Views

Fog Lamps

On the front of the vehicle

Lighting Systems Component Views

Lighting Systems Connector End Views

Front Park/Turn Lamps

In front of the vehicle, next to the headlamps

Lighting Systems Component Views

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Front Roof Rail Reading Lamps

On both sides of the headliner between the B and C-pillars

Lighting Systems Component Views

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Front Side Marker Lamps

Front of the vehicle, on both sides

Lighting Systems Component Views

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Hazard Lamp Flasher (Export)

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

Lighting Systems Component Views

Lighting Systems Connector End Views

Hazard Lamp/Turn Signal Flasher

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

Lighting Systems Component Views

Lighting Systems Connector End Views

Headlamps

Front side of the vehicle

Lighting Systems Component Views

Lighting Systems Connector End Views

Headlamp Dimmer Switch

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

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Lighting Systems Connector End Views

Headlamp and IP Lamp Dimmer Switch

Left of the instrument cluster

Lighting Systems Component Views

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Headlamp Position Lamp (Export)

Front of the vehicle

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Heater-A/C Control

Center of the IP, below the radio

HVAC Component Views

HVAC Connector End Views

Instrument Cluster

Left side of the IP

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Interior Lamp and Multi-function Switch

Center in front of the roof headliner

Lighting Systems Component Views

Lighting Systems Connector End Views

Interior Lamp and Multi-function Switch (Interior Lamps Override Switch)

Part of the interior lamp and multi-function switch

Lighting Systems Component Views

Lighting Systems Connector End Views

Interior Lamp and Multi-function Switch (Power Sliding Door On/Off Switch)

Part of the interior lamp and multi-function switch

Lighting Systems Component Views

Power Door Systems Connector End Views

Interior Lamp and Multi-function Switch (Power Sliding Door Open/Close Switch)

Part of the interior lamp and multi-function switch

Lighting Systems Component Views

Power Door Systems Connector End Views

Interior Lamp and Multi-function Switch (Rear Quarter Window Switch)

Part of the interior lamp and multi-function switch

Lighting Systems Component Views

Power Door Systems Connector End Views

IP Compartment Lamp Switch

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

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 Turn Lamp

Part of the left taillamp

Lighting Systems Component Views

Lighting Systems Connector End Views

License Lamps

Rear of the vehicle, above the license plate

Lighting Systems Component Views

Lighting Systems Connector End Views

Park Brake Indicator Switch

Lower left A-pillar, part of the park brake assembly

Hydraulic Brake Component Views

Hydraulic Brake Connector End Views

Radio Rear Seat Audio Control (4 Door)

Part of the left rear armrest

HVAC Component Views

Entertainment Connector End Views

Radio Rear Seat Audio Control (5 Door)

Part of the rear roof console, above the driver seat

HVAC Component Views

Entertainment Connector End Views

Radio Rear Seat Audio Control (WU3)

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

HVAC Component Views

Entertainment Connector End Views

Rear Fog Lamp Module (Export)

Below Ip left side of steering colum

Lighting Systems Component Views

Lighting Systems Connector End Views

Rear Fog Lamp 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

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Rear Fog Lamps

On the rear of the vehicle

Lighting Systems Component Views

Lighting Systems Connector End Views

Rear Roof Rail Reading Lamps

On both sides of the roof headliner, behind the left C-pillar and the left D-pillars

Lighting Systems Component Views

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Rear Window Wiper/Washer and Multi-function Switch

Center of the IP, below the radio

Wiper/Washer Component Views

Wiper/Washer Connector End Views

Relay Center

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

Power and Grounding Component Views

Power and Grounding Connector End Views

Right IP Courtesy Lamp

Below the right side of the IP

Lighting Systems Component Views

Lighting Systems Connector End Views

Right Rear Turn Lamp

Part of the right taillamp

Lighting Systems Component Views

Lighting Systems Connector End Views

Right Sunshade Lighted Vanity Mirror

Part of the right sunshade

Lighting Systems Component Views

Lighting Systems Connector End Views

Right Taillamp

Rear of the vehicle, right side

Lighting Systems Component Views

Lighting Systems Connector End Views

Right Tail/Stop Lamp

Rear of the vehicle, inside the right taillamp

Lighting Systems Component Views

Lighting Systems Connector End Views

Second Seat Audio (SSA) Control

Overhead console, right side of video screen

HVAC Component Views

Entertainment Connector End Views

Security Indicator Lamp

Center of the IP, mounted to the trim plate, near the windshield defrost vent

Theft Deterrent System Component Views

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Stop Lamp Switch

Mounted to the brake pedal support

Cruise Control Component Views

Lighting Systems Connector End Views

Sunshade Lighted Vanity Mirrors

Part of both sunshades

Lighting Systems Component Views

Lighting Systems Connector End Views

Taillamp

Rear of the vehicle, on both sides

Lighting Systems Component Views

Lighting Systems Connector End Views

Tail/Stop Lamps

Rear of the vehicle, inside both taillamps

Lighting Systems Component Views

Lighting Systems Connector End Views

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

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Third Seat Audio (TSA) Control

Right quarter trim panel, next to the third row right seat

Entertainment Component Views

Entertainment Connector End Views

Trailer Wiring Harness

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

Lighting Systems Component Views

Lighting Systems Connector End Views

Transaxle Range Switch

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

Engine Controls Component Views

Automatic Transmission Related Connector End Views

Turn Signal Lever (Cruise Control Switch)

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

Lighting Systems Component Views

Lighting Systems Connector End Views

Turn Signal and Headlamp Dimmer Switch and Windshield Wiper and Windshield Washer Switch

Inside the steering column

Lighting Systems Component Views

Lighting Systems Connector End Views

Underhood Accessory Wiring Junction Block

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

Power and Grounding Component Views

Power and Grounding Connector End Views

Windshield Header Courtesy/Reading Lamps

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

Inline Harness Connector End Views

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

Inline Harness Connector End Views

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

Inline Harness Connector End Views

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

Inline Harness Connector End Views

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

Inline Harness Connector End Views

C302 (16 cavities)

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

Harness Routing Views

Inline Harness Connector End Views

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

Inline Harness Connector End Views

C308 (23 cavities)

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

Harness Routing Views

Inline Harness Connector End Views

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

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Inline Harness Connector End Views

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

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Inline Harness Connector End Views

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

Inline Harness Connector End Views

C407 Domestic(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

Inline Harness Connector End Views

C407 Export(8 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

Inline Harness Connector End Views

G101

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

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G102

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

Harness Routing Views

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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

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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

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G302

Secured near the base of the right B-pillar

Harness Routing Views

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G401

Secured to the lower left D-pillar

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P100

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

Harness Routing Views

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P101

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

Harness Routing Views

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P400

Behind the right taillamp

Harness Routing Views

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P401

Behind the left taillamp

Harness Routing Views

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P403

Behind the left wheelhouse

Harness Routing Views

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P406

Between the right side of the liftgate and the roof

Harness Routing Views

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P500

Between the left A-pillar and the left front door

Harness Routing Views

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P600

Between the right A-pillar and the right front door

Harness Routing Views

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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 15 cm (6 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 72 cm (28 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

Video entertainment harness behind right side of hush panel

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S230

IP harness, right side of the IP approximately 4 cm (2 in) from the rear window wiper/washer and multi-function switch breakout

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S232

IP harness, right side of the IP approximately 17 cm (7 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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S235

IP harness, left side of the IP approximately 21 cm (8 in) from P101

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S236

Below left side of IP, near park brake

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S237

IP harness, right side of the IP approximately 4 cm (2 in) from the C203 breakout

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S238

IP harness, center of the IP approximately 80 cm (31 in) from the cigar lighter connector

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S239

IP harness, right side of the IP approximately 8 cm (3 in) from the C203 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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S243

IP harness, center of the IP approximately 37 cm (15 in) from the radio and 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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S261

IP harness, right side of the IP at the electric air inlet actuator 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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S270

IP harness, right side of the IP approximately 6  (2 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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S282

IP harness, left side of the IP approximately 4 cm (2 in) from the cigar lighter 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 he power sliding door open/close switch (right B-pillar) 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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S409

Body harness, left rear of the body approximately 7 cm (3 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 liftgate 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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