GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Ashtray Lamp (Auto Trans)

In the lighting tube from the PRNDL lamp

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Ashtray Lamp (Manual Trans)

Rearward of the shifter, in the ashtray

Harness Routing Views in Wiring Systems

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Backup Lamp Switch (M49) (V6 VIN K)

In the middle of the manual transmission, on the left side

Lighting Systems Component Views

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Backup Lamp Switch (MM6) (V8 VIN G)

In the middle of the manual transmission, on the right side

Lighting Systems Component Views

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Backup Lamp, LH

Mounted in the taillamp assembly

Lighting Systems Component Views

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Backup Lamp, RH

Mounted in the taillamp assembly

Lighting Systems Component Views

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Body Control Module (BCM)

Under the right side of the instrument panel near the blower motor

Body Control System Component Views in Body Control System

Body Control System Connector End Views in Body Control System

Center High Mounted Stop Lamp (CHMSL)

In the rear center of the spoiler

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Courtesy Lamp, Left Rear (Convertible)

Mounted in the left sail panel

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Courtesy Lamp, Rear Compartment (Convertible)

In the center of the rear compartment, near the rear compartment lid release actuator

Power Roof Systems Component Views in Roof

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Courtesy Lamp, Right Rear (Convertible)

Mounted in the right sail panel

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Daytime Running Lamps (DRL) Ambient Light Sensor

Mounted in top of instrument panel, near defrost grill

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

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Daytime Running Lamps (DRL) Module (Headlamp Auto Control Module)

Mounted behind the radio and the HVAC control, left of the instrument panel compartment

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

Lighting Systems Connector End Views

Daytime Running Lights (DRL) Relay

Approximately 31 cm (12 in) back from the windshield wiper motor

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Dome Lamp (Coupe)

On the roof, near the hatch

Harness Routing Views in Wiring Systems

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Door Illumination Lamp

Mounted in the left and right door trim panel, above the armrest switches

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Door Jamb Switch, LH

Near base of left A-pillar

Harness Routing Views in Wiring Systems

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Door Jamb Switch, RH

Near base of right A-pillar

Harness Routing Views in Wiring Systems

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Fog Lamp, Right Front

Lower right side of front fascia

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Fog Lamp, Left Front

On the lower left side of the front fascia

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Fog Lamp Relay

In the underhood electrical center 1

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Fog Lamp Switch (Chevrolet)

In the center of the instrument panel, above the HVAC control

Lighting Systems Component Views

Lighting Systems Connector End Views

Fog Lamp Switch (Pontiac)

On the left steering column, below the headlamp switch

Lighting Systems Component Views

Lighting Systems Connector End Views

Folding Top Switch

On the left side of the upper console

Power Roof Systems Connector End Views in Roof

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Front Side Door Lock

Inside the rear of the door

Power Door Systems Component Views in Doors

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Fusible Links

Forward of the left front wheelhouse, behind the underhood electrical center 2

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Hazard Lamp Flasher

Left of the steering column, mounted to the instrument panel carrier

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

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Headlamp (Pontiac)

On the front of the vehicle

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Headlamp Dimmer Switch

Part of steering column, activated by multifunction lever

Harness Routing Views in Wiring

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Headlamp Door Motor

In the front of the vehicle, near each headlamp door

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Headlamp Leveling Actuator Motor, LH

Forward lamp harness to the left headlamp leveling motor harness

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Headlamp Leveling Actuator Motor, RH

Forward lamp harness to the right headlamp leveling motor harness

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Headlamp Leveling Jumper Resistor

In the IP harness, approximately 12 cm (4 in) fromG202 breakout, in inflatable restraint sensing and diagnostic module (SDM) breakout

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Headlamp Leveling Switch (Export)

On the left side of the upper console

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Headlamp Opening Door Actuator Control Module

On the front left side of the engine compartment, beside the underhood electrical center 2

Power and Grounding Component Views in Power and Grounding

Lighting Systems Connector End Views

Headlamp Switch

On the left side of the instrument panel

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

Lighting Systems Connector End Views

Headlamp, Low Beam (Chevrolet)

On the front of the vehicle

Power and Grounding Component Views in Power and Grounding

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Headlamp, High Beam (Chevrolet)

On the front of the vehicle

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HVAC Control

In the center of the instrument panel, above the radio

HVAC Component Views in HVAC

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Inflatable Restraint Steering Wheel Module Coil

On the top of the steering column

SIR Component Views in SIR

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Inside Rearview Mirror

Mounted to inside center of windshield

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Instrument Cluster

On the left side of the instrument panel

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 Compartment Lamp

Inside the top center of the instrument panel compartment

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

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IP Dimmer Switch

Left of the steering wheel, part of the headlamp switch

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

Lighting Systems Connector End Views

IP Fuse Block

On the left end of the instrument panel carrier

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

License Lamp

In the center of the rear fascia, above the license plate

Lighting Systems Component Views

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Park Brake Switch

In the console, at the base of the park brake lever

Tilt Wheel/Column Component Views in Steering Wheel and Column - Tilt

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Park Neutral Position Switch

Under the console, on the base of the shift control lever

Tilt Wheel/Column Component Views in Steering Wheel and Column - Tilt

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Park/Turn Lamp, Front

On the left and right side of the exterior of the vehicle

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PRNDL Illumination Lamp

Under the console, left of the shift control lever

Harness Routing Views in Wiring Systems

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Radio

In the center of the instrument panel, below the HVAC control

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

Entertainment Connector End Views in Entertainment

Rear Compartment Lid Ajar Indication Switch

Part of the rear compartment lid latch

Body Rear End Component Views in Body Rear End

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Rear Fog Lamp Relay (Export)

Behind the instrument panel, mounted to the right side of the inflatable restraint instrument panel module bracket

Theft Deterrent System Component Views in Theft Deterrent

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Rear Turn Lamp

On the left and right rear exterior of the vehicle

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Side Marker Lamp, Left Front

On the exterior, left front

Lighting Systems Component Views

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Side Marker Lamp, Left Rear

On the exterior, left rear

Lighting Systems Component Views

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Side Marker Lamp, Right Front

On the exterior, right front

Lighting Systems Component Views

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Side Marker Lamp, Right Rear

On the exterior, right rear

Lighting Systems Component Views

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Steering Wheel Controls

On the steering wheel

Entertainment Component Views in Entertainment

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Stop Lamp Switch

Mounted on the brake pedal bracket

Cruise Control Component Views in Cruise Control

Antilock Brake System Connector End Views in Antilock Brake System

Stop Lamp/TCC Switch (Automatic)

Mounted on the brake pedal bracket

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Lighting Systems Connector End Views

Tail/Stop Lamp, LH (Chevrolet)

On the exterior, left rear of the vehicle

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Tail/Stop Lamp, RH (Chevrolet)

On the exterior, right rear of the vehicle

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Tail/Stop/Turn Lamp, LH Inboard (Pontiac)

On the exterior, left rear of the vehicle

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Tail/Stop/Turn Lamp, LH Outboard (Pontiac)

On the exterior, left rear of the vehicle

Lighting Systems Component Views

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Tail/Stop/Turn Lamp, RH Inboard (Pontiac)

On the exterior, right rear of the vehicle

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Tail/Stop/Turn Lamp, RH Outboard (Pontiac)

On the exterior, right rear of the vehicle

Lighting Systems Component Views

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Taillamp, LH

On the exterior, left rear of the vehicle

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Taillamp, RH

On the exterior, right rear of the vehicle

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Theft Deterrent Relay

Under the instrument panel, above the floor tunnel, attached to the inflatable restraint instrument panel module bracket

Theft Deterrent System Component Views in Theft Deterrent

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Traction Control Switch (Chevrolet)

In the center of the instrument panel, above the HVAC control

Lighting Systems Component Views

Lighting Systems Connector End Views

Traction Control Switch (Pontiac)

On the left side of the upper console

Lighting Systems Component Views

Lighting Systems Connector End Views

Turn Signal Lamp Flasher

Under the instrument panel, right of the steering column

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

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Turn Signal Lamp Flasher (Export)

Under the instrument panel, right of the steering column

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Turn/Stop Lamp (Chevrolet)

On the right and left rear exterior of the vehicle

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Underhood Electrical Center 1

On the Left front corner of the engine compartment

Power and Grounding Component Views in Wiring Systems

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Underhood Electrical Center 2

On the left front corner of the engine compartment

Power and Grounding Component Views in Wiring Systems

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C105 (8 cavities)

Engine to forward lamp harness, in the engine compartment, above the right wheelhouse

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C160 (5 cavities) (Pontiac)

Left headlamp to the forward lamp harness, behind the headlamp door bracket

Harness Routing Views in Wiring Systems

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C165 (5 cavities) (Pontiac)

Right headlamp to the forward lamp harness, behind the headlamp door bracket

Harness Routing Views in Wiring Systems

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C170 (6 cavities) Pontiac (Export)

Left leveling headlamp to forward lamp harness, mounted to body, under left headlamp door

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C175 (6 cavities) Pontiac (Export)

Right leveling headlamp to forward lamp harness, mounted to body, under right headlamp door

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C200A (17 cavities)

Forward lamp to instrument panel harness, behind the left kick panel and steering column

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C200B (18 cavities)

Forward lamp to instrument panel harness, between the left kick panel and the steering column

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C200C (13 cavities)

Cross car to instrument panel harness, between the left kick panel and the steering column

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C200D (48 cavities)

Part of the instrument panel harness, between the left kick panel and the steering column

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C205 (8 cavities) Pontiac (Export)

Forward lamp to instrument panel harness , between left kick panel and steering column

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C206 (4 cavities) Chevrolet (Export)

Forward lamp to instrument panel harness , between left kick panel and steering column

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C216 (11 cavities)

Instrument panel to steering column harness, attached to the base of the steering column

Harness Routing Views in Wiring Systems

C217 (4 cavities)

Instrument panel to inflatable restraint steering wheel module coil harness, near the base of the steering column

Harness Routing Views in Wiring Systems

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C220 (10 cavities)

Instrument panel to engine harness, under the right side of the instrument panel, behind the knee bolster

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C230 (10 cavities)

Instrument panel to engine harness, under the right side of the instrument panel, behind the knee bolster

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C330 (2 cavities) Coupe

Hatch to instrument panel harness, center of roof near dome lamp

Harness Routing Views in Wiring Systems

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C400 (6 cavities)

Instrument panel to rear body harness, left rear cargo compartment, between rear end panel and carpet

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C410 (2 cavities) (Export)

Instrument panel to rear body harness, in the left side of the rear compartment

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C420 (2 cavities) (Coupe)

Hatch to CHMSL jumper harness, left side of the rear compartment lid, between the hatch frame and plastic panel

Harness Routing Views in Wiring Systems

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C420 (2 cavities) (Convertible) (Chevrolet)

instrument panel to CHMSL jumper harness, left underside of the rear compartment lid

Harness Routing Views in Wiring Systems

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C420 (2 cavities) (Convertible) (Pontiac)

instrument panel to CHMSL jumper harness, center underside of the rear compartment lid

Harness Routing Views in Wiring Systems

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C430 (2 cavities)

Rear body to rear fascia harness, between the rear fascia and the rear panel, on the left side

Harness Routing Views in Wiring Systems

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G105

Attached to the top right side of the radiator support

Harness Routing Views in Wiring Systems

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G106

Attached to the top left side of the radiator support

Harness Routing Views in Wiring Systems

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G110 (V8 VIN G)

Attached to the rear of the left cylinder head

Harness Routing Views in Wiring Systems

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G110 (V6 VIN K)

In the front of the engine, bolted to the pulley above the A/C clutch connector

Harness Routing Views in Wiring Systems

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G200

Near the left A-pillar, bolted to the instrument panel mounting stud behind the kick panel

Harness Routing Views in Wiring Systems

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G310

Bolted to the roof, left of the dome lamp

Harness Routing Views in Wiring Systems

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G400

Bolted to the rear compartment lid release actuator bracket in the rear compartment

Harness Routing Views in Wiring Systems

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P100

Left side in the dash panel, engine to the passenger compartment

Harness Routing Views in Wiring Systems

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P110

Right side in the dash panel, engine to the passenger compartment

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P300

In the rear center of the roof, near the dome lamp

Harness Routing Views in Wiring Systems

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P410

In the center underside of the rear compartment lid

Harness Routing Views in Wiring Systems

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P400

In the rear of the cargo compartment, left of the rear compartment lid release actuator

Harness Routing Views in Wiring Systems

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P500

Between the driver door and A-pillar

Harness Routing Views in Wiring Systems

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P600

Between the passenger door and A-pillar

Harness Routing Views in Wiring Systems

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S104 (V6 VIN K)

In the engine harness, approximately 15 cm (6 in) from the powertrain control module (PCM) breakout

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S104 (V8 VIN G)

Engine harness, approximately 14 cm (6 in) from the powertrain control module (PCM) breakout

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S110 (V8 VIN G)

In the engine harness, main branch, approximately 19 cm (7 in) from the powertrain control module (PCM) breakout

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S110 (V6 VIN K)

In the engine harness, approximately 4 cm (2 in) from the powertrain control module (PCM) breakout

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S112

In the forward lamp harness, approximately 9 cm (4 in) from the right lamps breakout

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S113

In the forward lamp harness approximately 7 cm (3 in) from the engine coolant fans/cruise control

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S150

Forward lamp harness, approximately 16 cm (6 in) from windshield washer pump breakout

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S151

Forward lamp harness, approximately 28 cm (4 in) from C200

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S152

Forward lamp harness, approximately 7 cm (3 in) from C120 (left front wheel speed sensor) breakout

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S153

Forward lamp harness, approximately 13 cm (5 in) from C120 (left front wheel speed sensor) breakout

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S155

Forward lamp harness, approximately 27 cm (10.6 in) from the engine coolant fans/cruise control module breakout

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S156 (Export)

Forward lamp harness, approximately 7 cm (3 in) from G106 breakout

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S157 (Export)

Forward lamp harness, approximately 8 cm (3 in) from G105 breakout

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S160

Forward lamp harness, approximately 4 cm (2 in) from the engine coolant fans/cruise control module breakout

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S172 (Export)

Forward lamp harness, approximately 28 cm (11 in) from G105

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S202

Forward lamp harness, approximately 28 cm (11 ) from C200

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S206

In the instrument panel harness, at the rear compartment lid release relay breakout

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S207

In the instrument panel harness, main branch, approximately 4 cm (2 in) from the data link connector (DLC) breakout

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S210

Forward lamp harness, main branch, approximately 8 cm (3 in) from C211/C212 breakout, toward P100

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S214 (Chevrolet)

instrument panel harness, approximately 8 cm (3 in) into instrument cluster breakout

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S215

In the instrument panel harness, main branch, approximately 11 cm (4 in) from the antenna cable breakout

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S216

In the instrument panel harness, main branch, approximately 10 cm (4 in) from the instrument cluster breakout

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S217

In the instrument panel harness, main branch, approximately 18 cm (7 in) from the body control module (BCM) breakout

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S220

In the cross car harness, main branch, approximately 9 cm from C200C breakout

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S224

In the instrument panel harness, main branch, approximately 17 cm (7 in) from the instrument cluster breakout

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S226

Instrument panel harness, approximately 7 cm (3 in) into headlamp switch breakout

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S227

Instrument panel harness, approximately 14 cm (6 in) into headlamp switch breakout

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S241

In the instrument panel harness, main branch, approximately 4 cm (2 in) from the antenna cable breakout

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S243

Instrument panel harness, approximately 9 cm (4 in) from G200 breakout

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S245

Instrument panel harness, approximately 22 cm (9 in) from G200 breakout

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S246

In the instrument panel harness, approximately 3 cm (1.2 in) from the antenna cable breakout

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S247

Instrument panel harness, approximately 16 cm (6 in) from G200 breakout

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S250 (Chevrolet) (Export)

In the instrument panel harness, approximately 29 cm (11 in) from the G200 breakout

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S251 (Chevrolet) (Export)

instrument panel harness, at instrument panel fuse block breakout

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S260

Cross car harness, main branch, approximately 22 cm (9 in) from the C200C breakout

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S284

In the instrument panel harness, approximately 11 cm (4.3 in) from the G202 breakout

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S285

In the instrument panel harness, approximately 16 cm (6.3 in) from the G202 module

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S317 (Convertible)

Instrument panel harness, main branch, approximately 40 cm (16 in) (from left rear courtesy lamp breakout

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S400 (Chevrolet)

Rear body harness, main branch, approximately 20 cm (8 in) from P400 breakout toward right taillamp

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S400 (Pontiac)

Rear body harness, main branch, approximately 13 cm (5 in) from P400 breakout toward right taillamp

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S401 (Pontiac)

Rear body harness, between P400 and C400 in breakout, approximately 16 cm (6 in) from P400

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S402 (Pontiac)

Rear body harness, between P400 and C400 in breakout, approximately 13 cm (5 in) from P400

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S403 (Chevrolet)

Rear body harness, between P400 and C400 in breakout, 11 cm (4 in) from P400

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S404

Rear body harness, main branch, approximately 20 cm (8 in) from the P400 breakout

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S405 (Chevrolet)

Rear body harness, between P400 and C400 in breakout, approximately 17 cm (7 in) from P400

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S405 (Pontiac)

Rear body harness, between P400 and C400 in breakout, approximately 9 cm (4 in from P400

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S406

In the rear body harness, approximately 10 cm (4 in) from the rear compartment lid release actuator

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S408 (Chevrolet) (Export)

Rear body harness, main branch, approximately 20 cm (8 in) from P400 breakout

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S410

In the rear body harness, main branch, approximately 27 cm (11 in) from P400 breakout, toward the right taillamp

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S415 (Export)

In the cross car harness, approximately 13 cm (5.1 in) from the license lamp breakout

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S420

In the hatch harness, main branch, approximately 7 cm (3 in) from P300 breakout

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S430

Rear fascia harness, main branch, approximately 12 cm (5 in) from the license lamp breakout

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S430 (Export)

In the rear fascia harness, approximately 8 cm (3 in) from the main branch, in license lamp breakout

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S440

Rear fascia harness, main branch, approximately 5 cm (2 in) from license lamp breakout

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S440 (Export)

Rear fascia harness, main branch, approximately 7 cm (3 in from license lamp breakout

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S450

CHMSL jumper harness, approximately 24 cm (9 in) from the bulbs

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S460

CHMSL jumper harness, approximately 30 cm (12 in) from the bulbs

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S470

In the instrument panel harness, approximately 24 cm (9 in) from the rear compartment lid release actuator

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