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 Lamp Switch (V6 VIN K) (M49)

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

Lighting Systems Component Views

Lighting Systems Connector End Views

Backup Lamp Switch (V8 VIN G) (MM6)

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

Lighting Systems Component Views

Lighting Systems Connector End Views

Backup Lamps

Mounted in the left and right taillamp assemblies

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

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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

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

Lighting Systems Connector End Views

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 (Chevrolet:Scandinavia)

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

--

--

Diode Network (Europe)

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

--

Lighting Systems Connector End Views

Dome Lamp (Coupe)

On the inside of the roof, near the hatch

--

--

Door Illumination Lamp

Mounted in the door arm rest

Power Door Systems Component Views in Doors

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Door Lock Switch

Mounted in the door armrest

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Engine Wiring Harness Junction Block 1

In the left front corner of the engine compartment

Power and Grounding Component Views in Wiring Systems

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Engine Wiring Harness Junction Block 2

In the left front corner of the engine compartment

Power and Grounding Component Views in Wiring Systems

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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 Switch (Chevrolet)

In the center of the IP, above the radio

Antilock Brake System Component Views in ABS Traction Control

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

Fuse Holder (Export)

On the front of the vehicle, above each headlamp

--

--

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

Lighting Systems Connector End Views

Hazard Switch

Mounted on the right side of the steering column

--

Lighting Systems Connector End Views

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

--

Lighting Systems Connector End Views

Headlamp, High Beam (Chevrolet)

On the front of the vehicle

--

--

Headlamp Leveling Actuator Motor (Chevrolet:Europe, Scandinavia)

Part of the headlamp assembly

--

--

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

--

--

Headlamp Leveling Switch (Europe)

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

--

--

Headlamp Opening Door Actuator Control Module

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

Power and Grounding Component Views in Wiring Systems

Lighting Systems Connector End Views

Headlamp Opening Door Assembly (Pontiac)

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

--

Lighting Systems Connector End Views

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, below the radio

HVAC Component Views in HVAC with A/C Manual

HVAC Connector End Views in HVAC with A/C Manual

HVAC Control Lamp (Part of HVAC Control)

Part of the HVAC control

--

HVAC Connector End Views in HVAC with A/C Manual

Inflatable Restraint Steering Wheel Module Coil

On the top of the steering column

SIR Component Views in SIR

--

Inside Rearview Mirror

Mounted to the inside center of the windshield

Lighting Systems Component Views

Lighting Systems Connector End Views

Instrument Cluster

On the left side of the IP

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

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

IP Compartment Lamp

Inside the top center of the IP 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 IP

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 IP carrier

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

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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

Shift Lock Control Component Views in Automatic Transmission

Engine Controls Connector End Views in Engine Controls

Park/Turn Lamp, Front

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

Lighting Systems Component Views

--

Positioning Lamp (Chevrolet:Europe,Scandinavia)

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

--

--

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, above 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, Gauges and Console

Rear Fog Lamps (Europe)

On the left and right side of the rear fascia

Lighting Systems Component Views

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Rear Fog Lamp Relay (Europe)

Behind the IP, 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 Fog Lamp Switch (Europe)

In the center of the IP, above the HVAC control

Antilock Brake System Component Views in ABS Traction Control

Lighting Systems Connector End Views

Second Gear Start Switch (V6 VIN K) (Chevrolet w/o NW9)

In the center of the IP, above the HVAC control

Antilock Brake System Component Views in ABS Traction Control

Engine Controls Connector End Views in Engine Controls

Side Marker Lamp

On the left and right front and rear exterior of the vehicle

Lighting Systems Component Views

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Steering Wheel Controls

On the left and right side of the steering wheel

Entertainment Component Views in Entertainment

SIR Connector End Views in SIR

Stop Lamp/TCC Switch (Automatic)

Mounted on the brake pedal bracket

Cruise Control Component Views in Cruise Control

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 (Chevrolet)

On the left and right rear exterior of the vehicle

Lighting Systems Component Views

--

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

--

Theft Deterrent System Connector End Views in Theft Deterrent

Traction Control Switch (Chevrolet with NW9)

In the center of the IP, above the radio

Antilock Brake System Component Views in ABS Traction Control

Antilock Brake System Connector End Views in Antilock Brake System

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 Antilock Brake System

Turn/Hazard Switch Assembly

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

--

Lighting Systems Connector End Views

Turn Signal Lamp Flasher

Under the instrument panel, right of the steering column

Lighting Systems Component Views

Lighting Systems Connector End Views

Turn Signal Lamp Flasher (Europe)

Under the instrument panel, right of the steering column

Lighting Systems Component Views

Lighting Systems Connector End Views

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

Lighting Systems Connector End Views

C165 (5 cavities) (Pontiac)

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

Harness Routing Views in Wiring Systems

Lighting Systems Connector End Views

C170 (3 cavities) (Export)

Forward lamp harness to the left headlamp leveling motor harness

Harness Routing Views in Wiring Systems

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C175 (3 cavities) (Export)

Forward lamp harness to the right headlamp leveling motor harness

Harness Routing Views in Wiring Systems

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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

--

Inline Harness Connector End Views in Wiring Systems

C216 (11 cavities)

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

Harness Routing Views in Wiring Systems

Lighting Systems Connector End Views

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

Inline Harness Connector End Views in Wiring Systems

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

--

Inline Harness Connector End Views in Wiring Systems

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

Inline Harness Connector End Views in Wiring Systems

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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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 8 cm (3.2 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: All except Europe)

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 18 cm (6.8 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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S249 (Export)

In the IP harness, approximately 5 cm (2 in) into the diode network 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: Japan)

In the IP harness, at IP fuse block breakout

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--

S284 (Export)

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

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S285 (Export)

In the IP harness, approximately 21 cm (8.3 in) from the G202 breakout

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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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--

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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S404 (Chevrolet)

In the rear body harness, approximately 21 cm (8.3 in) from P400

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S406 (Chevrolet)

In the rear body harness, between P400 and C400 in breakout, approximately 11 cm (4.3 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 rear fascia 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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S470

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

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