GM Service Manual Online
For 1990-2009 cars only

Component

Location

Locator View

Connector End View

Ambient Light Sensor

On the top of the dash trim pad

Lighting Systems Component Views

Lighting Systems Connector End Views

Automatic Lamp Control (ALC) Relay

In the underhood wiring harness junction block

Power and Grounding Component Views in Wiring Systems

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Brake Switch

Below the left side of the instrument panel, near the steering column

Lighting Systems Component Views

Lighting Systems Connector End Views

Console Storage Lamp (Oldsmobile)

Under the center of the instrument panel

Lighting Systems Component Views

Lighting Systems Connector End Views

Daytime Running Lamps (DRL) Relay

In the underhood wiring harness junction block

Power and Grounding Component Views in Wiring Systems

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Dome Lamp

In the headliner

Lighting Systems Component Views

Lighting Systems Connector End Views

Dome and Rear Reading Lamps

In the headliner

Lighting Systems Component Views

Lighting Systems Connector End Views

Fog Lamp Switch

On the left side of the instrument panel

Lighting Systems Component Views

Lighting Systems Connector End Views

Fog Lamps Relay

In the right instrument panel wiring harness junction block

Power and Grounding Component Views in Wiring Systems

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Glove Box Lamp/Switch

On the top right side of the instrument panel

Lighting Systems Component Views

Lighting Systems Connector End Views

Hazard Switch

In the center of the instrument panel

Lighting Systems Component Views

Lighting Systems Connector End Views

High Mounted Stop Lamp Assembly

On the rear compartment lid

Lighting Systems Component Views

Lighting Systems Connector End Views

Inside Rear View Mirror Reading Lamps

Under the rearview mirror

Lighting Systems Component Views

Lighting Systems Connector End Views

Lamp Dimmer Module

On the left side of the instrument panel, near the brake pedal

Lighting Systems Component Views

Lighting Systems Connector End Views

Left Courtesy Lamp

On the left side of the instrument panel

Lighting Systems Component Views

Lighting Systems Connector End Views

Left Backup Lamp

Below the rear impact bar

Lighting Systems Component Views

Lighting Systems Connector End Views

Left Rear Compartment Lid Backup/Tail Lamp (Oldsmobile)

On the rear compartment lid

Lighting Systems Component Views

Lighting Systems Connector End Views

Left Fog Lamp

On the left front of the fascia (right front similar)

Lighting Systems Component Views

Lighting Systems Connector End Views

Left High Beam Headlamp

On the left front of the fascia (right front similar)

Lighting Systems Component Views

Lighting Systems Connector End Views

Left Low Beam Headlamp

On the left front of the fascia (right front similar)

Lighting Systems Component Views

Lighting Systems Connector End Views

Left Rear Lamp Assembly

Left rear of the vehicle, above the bumper

Lighting Systems Component Views

Lighting Systems Connector End Views

LF Door Dome Switch (RF similar)

In the left front door

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Lighting Systems Connector End Views

Left-Front Park/Turn Lamp

On the left front of the fascia (right front similar)

Lighting Systems Component Views

Lighting Systems Connector End Views

LF Park Lamp (Pontiac)

On the left front of the fascia

Lighting Systems Component Views

Lighting Systems Connector End Views

Left-Front Side Marker Lamp

On the left front of the fascia (right front similar)

Lighting Systems Component Views

Lighting Systems Connector End Views

Panel Dimmer Switch

On the left side of the instrument panel

Lighting Systems Component Views

Lighting Systems Connector End Views

Park Lamp Relay

In the underhood wiring harness junction block

Power and Grounding Component Views in Wiring Systems

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Rear Compartment Courtesy Lamp

In the right side of the passenger compartment, near the rear package shelf

Lighting Systems Component Views

Lighting Systems Connector End Views

Rear License Lamp

On the rear impact bar

Lighting Systems Component Views

Lighting Systems Connector End Views

Right Courtesy Lamp

Below the right side of the instrument panel

Lighting Systems Component Views

Lighting Systems Connector End Views

Right Fog Lamp

On the right front of the fascia (left front similar)

Lighting Systems Component Views

Lighting Systems Connector End Views

Right High Beam Headlamp

On the right front of the fascia (left front similar)

Lighting Systems Component Views

Lighting Systems Connector End Views

Right Low Beam Headlamp

On the right front of the fascia (left front similar)

Lighting Systems Component Views

Lighting Systems Connector End Views

Right Rear Lamp Assembly

Right rear of the vehicle, above the bumper

Lighting Systems Component Views

Lighting Systems Connector End Views

Right-Front Park/Turn Lamp

On the right front of the fascia (left front similar)

Lighting Systems Component Views

Lighting Systems Connector End Views

Right-Front Side Marker Lamp

On the right front of the fascia (left front similar)

Lighting Systems Component Views

Lighting Systems Connector End Views

Transaxle Shift Indicator Lamp

Under the center console

Lighting Systems Component Views

Lighting Systems Connector End Views

Turn/Headlamp Switch Assembly

On the left side of the instrument panel, near the steering column

Lighting Systems Component Views

Lighting Systems Connector End Views

G101

Left side of the engine compartment

Harness Routing Views in Wiring Systems

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G201

Left side of the instrument panel panel

Harness Routing Views in Wiring Systems

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G203

Right side of the instrument panel panel

Harness Routing Views in Wiring Systems

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G204

Right side of the instrument panel panel

Harness Routing Views in Wiring Systems

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G401

Left side of the passenger compartment, on the rear package shelf

Harness Routing Views in Wiring Systems

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G402

Right side of the passenger compartment, on the rear package shelf

Harness Routing Views in Wiring Systems

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P100

Rear of the engine compartment

Harness Routing Views in Wiring Systems

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P200

Rear of the engine compartment

Harness Routing Views in Wiring Systems

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P400

On the rear impact bar

Harness Routing Views in Wiring Systems

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P450

On the rear impact bar

Harness Routing Views in Wiring Systems

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