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

Hydraulic Brake Component Views in Hydraulic Brakes

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Ashtray Lamp (Manual Trans)

Rearward of the shifter, in the ashtray

Hydraulic Brake Component Views in Hydraulic Brakes

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Backup Lamps

Mounted in the left and right taillamp assemblies

Lighting Systems Component Views

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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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Body Control Module (BCM)

Under the right side of the IP near the blower motor

Body Control System Component Views in Body Control Systems

Body Control System Connector End Views in Body Control Systems

Center High Mounted Stop Lamp (CHMSL)

In the center of the rear spoiler

Harness Routing Views in Wiring Systems

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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

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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 the top of the IP, near the defrost grill

Entertainment Component Views in Entertainment

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Daytime Running Lamps (DRL) Module

Mounted behind the radio and the HVAC control, left of the IP compartment

Data Link Communications Component Views in Data Link Communications

Lighting Systems Connector End Views

Daytime Running Lamps (DRL) Relay

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

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Dome Lamp (Coupe)

On the inside of the roof, near the hatch

Harness Routing Views in Wiring Systems

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Door Illumination Lamp

Mounted in the door arm rest

Power Door Systems Component Views in Doors

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Fog Lamp

On the lower left and right side of the front fascia

Lighting Systems Component Views

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Fog Lamp Relay

In the under hood electrical center 1

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Fog Lamp Switch (Chevrolet)

In the center of the IP, 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 Component Views in Roof

Power Roof Systems Connector End Views in Roof

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 IP carrier

Data Link Communications Component Views in Data Link Communications

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Headlamp (Pontiac)

On the front of the vehicle

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--

Headlamp Dimmer Switch

Part of the steering column, activated by the multi-function lever

Lighting Systems Component Views

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Headlamp Door Motor

On the front of the vehicle, near each headlamp door

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--

Headlamp, High Beam (Chevrolet)

On the front of the vehicle

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Headlamp Leveling Jumper Resistor

In the IP harness, approximately 12 cm (4 in) from G202 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

Power Roof Systems Component Views in Roof

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Headlamp, Low beam (Chevrolet)

On the front of the vehicle

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Headlamp Opening Door Actuator Control Module

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

--

Lighting Systems Connector End Views

Headlamp Opening Door Module

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

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Headlamp Switch

On the left side of the IP

Lighting Systems Component Views

Lighting Systems Connector End Views

HVAC Control

In the center of the IP, above the radio

HVAC Component Views in HVAC with AC Manual

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Inflatable Restraint Steering Wheel Module Coil

On the top of the steering column

SIR Component Views in Supplemental Inflatable Restraints

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Inside Rearview Mirror

Mounted to the inside center of the windshield

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Instrument Cluster

On the left side of the IP

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

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

IP Compartment Lamp

Inside the top center of the IP compartment

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

Lighting Systems Connector End Views

IP Fuse Block

On the left end of the IP carrier

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

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LH Headlamp Leveling Actuator

Forward lamp harness to the left headlamp leveling motor harness

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License Lamp

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

Lighting Systems Component Views

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Park Brake Switch

Below the center console, at the base of the park brake lever

Hydraulic Brake Component Views in Hydraulic Brakes

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Park Neutral Position Switch

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

Tilt Wheel/Column Component Views in Steering-Tilt

Engine Electrical Connector End Views in Starter and Charging

Park/Turn Lamp, Front

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

Lighting Systems Component Views

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PRNDL Illumination Lamp

Under the console, left of the shift control lever

Hydraulic Brake Component Views in Hydraulic Brakes

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Radio

In the center of the IP, below the HVAC control

Entertainment Component Views in Entertainment

Entertainment Connector End Views in Entertainment

Rear Compartment Lid Ajar Indicator Switch

Part of the rear compartment lid latch

Body Rear End Component Views in Body Rear End

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

Rear Fog Lamp Switch (Export)

In the center of the IP, above the HVAC control

Antilock Brake System Component Views in ABS Traction Control

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Rear Fog Lamps (Export)

On the left and right side of the rear fascia

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Rear Turn Lamp

On the left and right rear exterior of the vehicle

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RH Headlamp Leveling Actuator

Forward lamp harness to the right headlamp leveling motor harness

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Side Marker Lamp, Front

On the left and right front exterior of the vehicle

Lighting Systems Component Views

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Side Marker Lamp, Rear

On the left and right rear exteriorof the vehicle

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

Cruise Control Connector End Views in Cruise Control

Stop Lamp/TCC Switch (Automatic)

Mounted on the brake pedal bracket

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Lighting Systems Connector End Views

Taillamp

On the left and right rear exterior of the vehicle

Lighting Systems Component Views

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Tail/Stop Lamp (Chevrolet)

On the left and right rear exterior of the vehicle

Lighting Systems Component Views

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Tail/Stop/Turn Lamp, Inboard (Pontiac)

On the left and right rear exterior of the vehicle

Lighting Systems Component Views

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Tail/Stop/Turn Lamp, Outboard (Pontiac)

On the left and right rear exterior of the vehicle

Lighting Systems Component Views

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Theft Deterrent Relay

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

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Traction Control Switch (Chevrolet)

In the center of the IP, above the HVAC control

Antilock Brake System Component Views in ABS Traction Control

Antilock Brake System Connector End Views in ABS Traction Control

Traction Control Switch (Pontiac)

On the left side of the upper console

Power Roof Systems Component Views in Roof

Antilock Brake System Connector End Views in ABS Traction Control

Turn/Hazard Switch Assembly

On the left side of the steering column, part of the multi-function lever

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Turn Signal Lamp Flasher

Under the instrument panel, right of the steering column

Lighting Systems Component Views

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Turn Signal Lamp Flasher (Export)

Under the instrument panel, right of the steering column

Lighting Systems Component Views

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Turn/Stop Lamp (Chevrolet)

On the left and right rear exterior of the vehicle

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Underhood Electrical Center 1

In the left front corner of the engine compartment

Harness Routing Views in Wiring Systems

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Underhood Electrical Center 2

In the left front corner of the engine compartment

Harness Routing 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 (3 cavities) (Export)

Forward lamp harness to the left headlamp leveling motor harness

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C175 (3 cavities) (Export)

Forward lamp harness to the right headlamp leveling motor harness

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C200A (17 cavities)

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

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C200B (18 cavities)

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

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C206 (4 cavities) (Chevrolet export)

Forward lamp to IP harness, under the left side of the IP, behind the knee bolster

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C216 (11 cavities)

IP to steering column harness, attached to the base of the steering column

Harness Routing Views in Wiring Systems

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C217 (4 cavities)

IP 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)

IP to engine harness, under the right side of the IP, behind the knee bolster

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C330 (2 cavities) (Coupe)

Hatch to the IP harness, center of the roof near the dome lamp

Harness Routing Views in Wiring Systems

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C400 (6 cavities)

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

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C410 (2 cavities) (Export)

IP to rear body harness, in the left side of the rear compartment

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C420 (2 cavities) (Convertible) (Chevrolet)

IP harness 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)

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

Harness Routing Views in Wiring Systems

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C420 (2 cavities) (Coupe)

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

Harness Routing Views in Wiring Systems

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C430 (2 cavities)

Rear body harness to the 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 (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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G110 (V8 VIN G)

Attached to the rear of the left cylinder head

Harness Routing Views in Wiring Systems

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G200

Near the left A-pillar, bolted to the IP 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

Harness Routing Views in Wiring Systems

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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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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 7 cm (2.3 in) from the right knock sensor breakout

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S104 (V8 VIN G)

in the engine harness, approximately 14 cm (5.5 in) from the powertrain control module (PCM) breakout

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S110 (V6 VIN K)

In the engine harness, approximately 4 cm (1.6 in) from the powertrain control module (PCM) breakout

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S110 (V8 VIN G)

In the engine harness, main branch, approximately 20 cm (7.9 in) from the powertrain control module (PCM) breakout

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S112

In the forward lamp harness, approximately 9 cm (3.5 in) from the right lamps breakout

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S113

In the forward lamp harness approximately 7 cm (2.8 in) from the electronic throttle control (ETC) module/cruise control module breakout

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S150

In the forward lamp harness, approximately 16 cm (6.3 in) from the windshield washer pump breakout

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S152

In the forward lamp harness, approximately 7 cm (2.8 in) from the C120 (left front wheel speed sensor) breakout

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S153

In the forward lam harness, approximately 13 cm (5.1 in) from the C120 (left front wheel speed sensor) breakout

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S155

In the forward lamp harness, approximately 27 cm (10.6 in) from the electronic throttle control (ETC) module/cruise control module breakout

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S156 (Export)

In the forward lamp harness, main branch, approximately 7 cm (2.8 in) from G106 breakout

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S157 (Export)

In the forward lamp harness, approximately 7 cm (2.8 in) from G105 breakout

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S160

In the forward lamp harness, approximately 4 cm (1.6 in) from the electronic throttle control (ETC) module/cruise control

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S172 (Export)

In the forward lamp harness, approximately 28 cm (11 in) from G105 breakout

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S202 (Export)

In the forward lamp harness, approximately 28 cm (4.3 in) from C200

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S206

In the IP harness, at the rear compartment lid release relay breakout

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S207

In the IP harness, main branch, approximately 4 cm (1.6 in) from the data link connector (DLC) breakout

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S210 (Chevrolet export)

In the forward lamp harness, main branch, approximately 8 cm (3 in) from the ignition switch breakout

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S214 (Chevrolet)

In the IP harness, approximately 8 cm (3 in) into the instrument cluster breakout

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S215

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

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S216

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

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S217

In the IP harness, main branch, approximately 14 cm (5.5 in) from the body control module (BCM) breakout

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S220

In the cross car harness, main branch, approximately 9 cm (3.5 in) from C200C breakout

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S224

In the IP harness, main branch, approximately 17 cm (6.7 in) from the instrument cluster breakout

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S226

In the IP harness, approximately 7 cm (2.8 in) into the headlamp switch breakout

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S227

In the IP harness, approximately 14 cm (5.5 in) into the headlamp switch breakout

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S241

In the IP harness, main branch, approximately 4 cm (1.6 in) from the antenna cable breakout

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S243

In the IP harness, approximately 9 cm (3.5 in) from G200 breakout

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S245 (Export)

In the IP harness, approximately 22 cm (8.7 in) from G200 breakout

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S246

In the IP harness, main branch, approximately 3 cm (1.2 in) from the antenna cable breakout

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S247

In the IP harness, approximately 16 cm (6.3 in) from G200 breakout

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S250 (Chevrolet) (Export)

In the IP harness, approximately 29 cm (11.4 in) from G200 breakout

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S251 (Chevrolet) (Export)

In the IP harness, at IP fuse block breakout

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S260

In the cross car harness, main branch, approximately 22 cm (8.7 in) from the C200C breakout

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S284

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

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S285

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

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S317 (Convertible)

In the IP harness, main branch, approximately 40 cm (15.8 in) from the left rear courtesy lamp breakout

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S400 (Chevrolet)

In the rear body harness, main branch, approximately 20 cm (7.9 in) from P400 breakout, toward the right taillamp

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S400 (Pontiac)

In the rear body harness, main branch, approximately 13 cm (5.1 in) from P400 breakout, toward the right taillamp

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S401 (Pontiac)

In the rear body harness, between P400 and C400 in breakout, approximately 16 cm (6.3 in) from P400

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S402 (Pontiac)

In the rear body harness, between P400 and C400 in breakout, approximately 13 cm (5.1 in) from P400

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S403 (Chevrolet)

In the rear body harness, between P400 and C400 in breakout, approximately 11 cm (4.3 in) from P400

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S405 (Chevrolet)

In the rear body harness, between P400 and C400 in breakout, approximately 17 cm (6.7 in) from P400

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S405 (Pontiac)

In the rear body harness, between P400 and C400 in breakout, approximately 9 cm (3.5 in) from P400

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S408 (Chevrolet) (Export)

In the rear body harness, main branch, approximately 20 cm (7.9 in) from P400

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S410

In the rear body harness, main branch, approximately 27 cm (10.3 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 (2.8 in) from P300 breakout

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S430

In the rear fascia harness, main branch, approximately 12 cm (5.7 in) from the license lamp breakout

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S430 (Export)

In the rear fascia harness, approximately 8 cm (3.2 in) from the main branch, in license lamp breakout

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S440

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

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S440 (Export)

In the rear fascia harness, main branch, approximately 7 cm (2.8 in) from license lamp breakout

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S450

CHMSL jumper harness, approximately 24 cm (9.5 in) from the bulbs

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S460

CHMSL jumper harness, approximately 30 cm (11.8 in) from the bulbs

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S470

In the IP harness, approximately 6 cm (9.5 in) from the G400 breakout

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