GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Accessory Switch (SEO)

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

Ashtray Floodlamp

Center console, below the ashtray

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Automatic transmission/transaxle Control Position Indicator Lamp

Center Console

Lighting Systems Component Views

Lighting Systems Connector End Views

Auxiliary Dome Lamp

Center of the windshield header

Lighting Systems Component Views

Lighting Systems Connector End Views

Backup Lamps

Center rear of the vehicle on the rear compartment lid

Lighting Systems Component Views

Lighting Systems Connector End Views

Center High Mounted Stop Lamp (CHMSL)

Center of the rear package shelf

Lighting Systems Component Views

Lighting Systems Connector End Views

Data Link Connector (DLC)

On the bottom of the instrument panel, to the right of the steering column

Data Link Communications Component Views

Data Link Communications Connector End Views

Daytime Running Lamp (DRL) Ambient Light Sensor

Right side of the top of the instrument panel, near the defogger air duct

Lighting Systems Component Views

Lighting Systems Connector End Views

Daytime Running Lamp (DRL) Diode (SEO)

Left side of Instrument Panel

Lighting Systems Component Views

Lighting Systems Connector End Views

Daytime Running Lamp (DRL) Control Module

Behind the left side of the instrument panel, on the electronic brake control module bracket

Lighting Systems Component Views

Lighting Systems Connector End Views

Dome Lamp

Center of the underside of the roof

Lighting Systems Component Views

Lighting Systems Connector End Views

Door Lock Switch

Center of the front door

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Engine Wiring Harness Junction Block 1

Right side of the engine compartment, forward of the strut tower

Power and Grounding Component Views in Wiring Systems

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Engine Wiring Harness Junction Block 2

Left side of the engine compartment, forward of the strut tower

Power and Grounding Component Views in Wiring Systems

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Front Side Marker Lamp

Front of the vehicle

Lighting Systems Component Views

Lighting Systems Connector End Views

Fuse Block

Right side of the instrument panel, in the right front door opening

Power and Grounding Component Views in Wiring Systems

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Hazard Lamp/Turn Signal Lamp Flasher

Behind the left side of the instrument panel, mounted in the bulkhead

Lighting Systems Component Views

Lighting Systems Connector End Views

Headlamp Dimmer Switch

Mounted to the steering column

Lighting Systems Component Views

Lighting Systems Connector End Views

Headlamp Switch

Left side of the instrument panel, to the left of the steering column

Lighting Systems Component Views

Lighting Systems Connector End Views

Headlamps

Front of the vehicle

Lighting Systems Component Views

Lighting Systems Connector End Views

Heater-A/C Control

Center of the instrument panel

HVAC Component Views in HVAC Systems with AC - Manual

HVAC Connector End Views in HVAC Systems with AC - Manual

Instrument Panel Ashtray Floodlamp

Behind the center of the instrument panel, above the ashtray

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Instrument Panel Compartment Lamp

Top center of the instrument panel compartment opening

Lighting Systems Component Views

Lighting Systems Connector End Views

Instrument Panel Compartment Lamp Switch

Behind the instrument panel compartment

Lighting Systems Component Views

Lighting Systems Connector End Views

Inflatable Restraint Steering Wheel Module Coil (SIR Coil)

Inside the steering column

SIR Component Views in SIR

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Inside Rearview Mirror

Center of the windshield header

Lighting Systems Component Views

Lighting Systems Connector End Views

Instrument Cluster

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.

License Lamp

Center rear of the vehicle

Lighting Systems Component Views

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Park Brake Indicator Switch

Lower left A pillar, part of the park brake assembly

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

Park/Neutral Position Switch

Mounted to the top of the steering column, near the gear selector

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Tilt Wheel/Column Connector End Views in Steering Wheel and Column - Tilt

Park/Turn Signal Lamp

Front of the vehicle

Lighting Systems Component Views

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Powertrain Control Module (PCM) (VIN K)

Right side of the engine compartment, forward of the strut tower

Engine Controls Component Views in Engine Controls-3.8L

Powertrain Control Module Connector End Views in Engine Controls-3.8L

Powertrain Control Module (PCM) (VIN M)

Right side of the engine compartment, forward of the strut tower

Engine Controls Component Views in Engine Controls-3.1L

Powertrain Control Module Connector End Views in Engine Controls-3.1L

Radio

Center of the instrument panel

Entertainment Component Views in Entertainment

Entertainment Connector End Views in Entertainment

Rear Compartment Courtesy Lamp

Center of the rear compartment, under the rear package shelf

Lighting Systems Component Views

Lighting Systems Connector End Views

Rear Compartment Lid Ajar Indicator Switch

Center of the rear compartment lid

Lighting Systems Component Views

Lighting Systems Connector End Views

Rear Side Marker Lamps

Rear of the vehicle

Lighting Systems Component Views

Lighting Systems Connector End Views

Remote Control Door Lock Receiver (RCDLR)

Below the right rear window trim panel

Keyless Entry Component Views in Keyless Entry

Keyless Entry Connector End Views in Keyless Entry

Seat Belt/Ignition Key/Lamps (Warning) Alarm

Behind the instrument panel, on the right side of the A/C module

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

SEO Switch Panel Diode

Instrument panel harness, behind the instrument cluster approximately 12 cm (5 in) from the digital speedometer module breakout

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

Steering Wheel Radio Control Switches

Left and right sides of the steering wheel inflator module

Entertainment Component Views in Entertainment

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Stop Lamp Switch

Behind the Instrument Panel, on the brake pedal support

Lighting Systems Component Views

Lighting Systems Connector End Views

Sunshade Illuminated Mirror

Side of the windshield header

Lighting Systems Component Views

Lighting Systems Connector End Views

Tail/Stop/Turn Lamps

Rear of the vehicle

Lighting Systems Component Views

Lighting Systems Connector End Views

Turn Signal Lever

Top of the left side of the steering column

Lighting Systems Component Views

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Turn Signal Switch

In the steering column

Lighting Systems Component Views

Lighting Systems Connector End Views

Window Switch, Front

In the center of the rear door panel

Power Door Systems Component Views In Doors

Power Door Systems Connector End Views In Doors

Window Switch, Rear

In the center of the rear door panel

Power Door Systems Component Views In Doors

Power Door Systems Connector End Views In Doors

C100 (36 cavities)

Engine harness to the instrument panel harness, in the right side of the dash, near the strut tower

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C200 (102 cavities)

Instrument panel harness to the crossbody harnesses, mounted behind the right hand side of the instrument panel, near the shroud

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C201 (48 cavities)

Instrument panel harness to the steering column harness, behind the instrument panel on the right side of the steering column

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C213 (4 cavities)

Instrument panel harness to the wiper harness, behind the instrument panel, on the right hand side of the brake pedal support

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C240 (4 cavities)

(With Console)

Instrument panel harness to the console/ashtray jumper harness, behind the center of the instrument panel, to the left of the radio

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C240 (4 cavities)

(Without Console)

Instrument panel harness to the console/ashtray jumper harness, behind the center of the instrument panel, to the left of the radio

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C299 (1 cavity)

Instrument panel harness to the instrument panel harness, left side of the instrument panel behind the accessory switch

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C301 (1 cavity)

Crossbody harness to the left front door harness, mounted to the left A pillar

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C302 (23 cavities)

Crossbody harness to the right front door harness, mounted to the right A pillar

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C355 (8 cavities)

Crossbody harness to the left rear door harness, mounted to the left B pillar

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C356 (8 cavities)

Crossbody harness to right rear door harness, mounted to the right sunshade

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C400 (8 cavities)

Crossbody harness to the rear body harness, below the right sill panel of the rear compartment

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C430 (4 cavities)

Center rear of the rear compartment lid

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G101

Left side of the radiator support

Harness Routing Views in Wiring Systems

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G102

Right side of the radiator support

Harness Routing Views in Wiring Systems

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G201

Behind the instrument panel, on the right side of the brake pedal bracket

Harness Routing Views in Wiring Systems

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G205

Behind the instrument panel, on the left side of the brake pedal brakes

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G302

At the base of the right B pillar

Harness Routing Views in Wiring Systems

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P100

Right A pillar

Harness Routing Views in Wiring Systems

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P103

Left rear of the engine compartment, near the strut tower

Harness Routing Views in Wiring Systems

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P400

Right rear of the rear compartment

Harness Routing Views in Wiring Systems

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P500

Left A pillar

Harness Routing Views in Wiring Systems

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P600

Right A pillar

Harness Routing Views in Wiring Systems

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P700

Left B pillar

Harness Routing Views in Wiring Systems

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P800

Right B pillar

Harness Routing Views in Wiring Systems

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S103

Forward Lamps harness, below right side of radiator approximately 13 cm (5 in) from the right headlamp breakout

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S104

Forward lamps harness, on the right headlamp approximately 22 cm (9 in) from C200

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S119

Forward lamp harness, in the right A pillar near the P100

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S123

Forward lamp harness, below the right headlamp approximately 8 cm (3 in) from the right headlamp breakout

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S124

Forward lamp harness, below the left headlamp approximately 8 cm (3 in) from the left headlamp breakout

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S136

Forward lamps harness, in the right A pillar approximately 19 cm (7 in) from the C200

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S137

Forward lamps harness, in the right A pillar approximately 15 cm (6 in) from the C200

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S201

Instrument panel harness, below the instrument panel compartment approximately 4 cm (2 in) from the fuse block breakout

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S203

Instrument panel harness, behind the instrument cluster approximately 4 cm (2 in) from the instrument cluster breakout

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S204

Instrument panel harness, below the center of the instrument panel approximately 9 cm (4 in) from the C240 breakout

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S205

Instrument panel harness, below the center of the instrument panel approximately 1 cm (0.5 in) from the C240 breakout

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S209

Instrument panel harness, behind the right side of the driver knee bolster approximately 5 cm (2 in) from the C201 breakout

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S211

Instrument panel harness, behind the right side of the instrument cluster approximately 4 cm (2 in) from the radio breakout

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S212

Instrument panel harness, behind the instrument cluster approximately 8 cm (3 in) from the instrument cluster breakout

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S213

Instrument panel harness, behind the right side of the driver knee bolster approximately 5 cm (2 in) from the C201 breakout

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S219

Instrument panel harness, behind the right side of the instrument cluster approximately 4 cm (2 in) from the radio breakout

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S221

Instrument panel harness, behind the right side of the instrument cluster approximately 6 cm (2 in) from the radio breakout

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S222

Instrument panel harness, behind the left side of the instrument cluster approximately 4 cm (2 in) from the headlamp switch breakout

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S233

Instrument panel harness, below the instrument panel compartment approximately 4 cm (2 in) from the compartment lamp breakout

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S289

Instrument panel harness, below the center of the instrument panel approximately 1 cm (0.5 in) from the C240 breakout

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S290

Instrument panel harness, below the instrument panel compartment approximately 21 cm (8 in) from the blower motor relay breakout

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S298

Instrument panel harness, on the left side of the instrument panel approximately 11 cm (4 in) from the accessory switch

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S299

Instrument panel harness, behind the left side of the instrument cluster approximately 13 cm (5 in) from the headlamp switch breakout

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S302

Crossbody harness, below the right front seat approximately 47 cm (19 in) from the G302 breakout

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S303

Crossbody harness, below the right front seat approximately 17 cm (7 in) from the G302 breakout

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S306

Crossbody harness, below the right front seat approximately 66 cm (26 in) from the G302 breakout

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S309

Crossbody harness, below the right front seat approximately 10 cm (4 in) from the C302 breakout

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S390 (With Sunroof)

Roof harness, approximately 4 cm (2 in) from the courtesy lamp breakout

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S390 (Without Sunroof)

Roof harness, approximately 17 cm (7 in) from the dome lamp breakout

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S391

Roof harness, approximately 4 cm (2 in) from inside the rear view mirror breakout

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S392

Roof harness, approximately 9 cm (4 in) from the inside rear view mirror breakout

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S400

Rear body harness, inside the rear compartment near the P400 approximately 20 cm (8 in) from the P400

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S402

Rear body harness, behind the center of the rear fascia approximately 13 cm (5 in) from the license lamp breakout

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S405

Backup lamp harness, in the rear compartment lid approximately 13 cm (5 in) from the right backup lamp breakout

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S406

Crossbody harness, in the rear compartment under the rear package shelf approximately 15 cm (6 in) from the left rear radio speaker breakout

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S415

Backup lamp harness, in the rear compartment lid approximately 4 cm (2 in) from the right backup lamp breakout

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S504 (2 Door)

Left front door harness, approximately 12 cm (5 in) from the window switch breakout

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S504 (4 Door)

Left front door harness, approximately 12 cm (5 in) from the window switch breakout

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S506

Left front door harness, approximately 7 cm (3 in) from the switch breakout

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S604

Right front door harness, approximately 12 cm (5 in) from the window switch breakout

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S606

Right front door harness, approximately 7 cm (3 in)

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