GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Backup Lamp Relay

Left of the IP, mounted on the multi-purpose bracket, near the body control module (BCM)

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Body Control Module (BCM)

Below the left side of the IP, left of the steering column

Body Control System Component Views in Body Control Systems

Body Control System Connector End Views in Body Control Systems

Fuse Block

Right side of the IP, in the right front door opening

Power and Grounding Component Views in Wiring Systems

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Heater-A/C Control (C60/CJ3)

Center of the IP

HVAC Component Views in HVAC - Manual

HVAC Connector End Views in HVAC - Manual

Heater-A/C Control (CJ2)

Center of the IP

HVAC Component Views in HVAC - Automatic

HVAC Connector End Views in HVAC - Automatic

Inside Rearview Mirror (Day-Night)

Top center of the windshield

Stationary Windows Component Views

Stationary Windows Connector End Views

Outside Rearview Mirror

Upper front of the left front or right front door panel

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Outside Rearview Mirror Day/Night

Upper front of the left front or right front door panel

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Park/Neutral Position (PNP) Switch

Left of the engine, on the transaxle

Engine Controls Component Views in Engine Controls - 3.1L or Engine Controls Component Views in Engine Controls - 3.8L

Engine Controls Connector End Views in Engine Controls - 3.1L or Engine Controls Connector End Views in Engine Controls - 3.8L

Radio Noise Suppressor Ground Wire (Filter Lead)

In the right C-pillar, near the top of the rear window trim panel

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Rear Window Defogger Grid

On the rear window

Stationary Windows Component Views

Stationary Windows Connector End Views

Rear Window Defogger Relay

Behind the IP compartment, attached to the underside of the cross-car beam

Stationary Windows Component Views

Stationary Windows Connector End Views

Underhood Accessory Wiring Junction Block

Right side of the engine compartment, mounted to the strut tower

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

C200 (56 cavities)

IP wiring harness to the body wiring harness, behind the right side of the IP

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C201 (48 cavities)

IP wiring harness to the steering column wiring harness, behind the IP, on the right side of the steering column

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C301 (16 cavities)

Body wiring harness to the left front door wiring harness, in the A-pillar

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C302 (16 cavities)

Body wiring harness to the right front door wiring harness, in the A-pillar

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C303 (10 cavities)

Body wiring harness to the left front door wiring harness, in the A-pillar

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C304 (10 cavities)

Body wiring harness to the right front door wiring harness, in the A-pillar

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C390 (8 cavities)

Body wiring harness to the quarter courtesy and reading lamp wiring harness, right rear, on top of the shelf panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C410 (8 cavities)

Body wiring harness to the rear compartment lid wiring harness, right side of the trunk, above the wheel well

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G200

Behind the right side of the IP compartment

Harness Routing Views in Wiring Systems

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G301

Inside the left door sill, forward of the left front seat

Harness Routing Views in Wiring Systems

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G401

Inside the rear compartment, below the left side of the rear window trim panel

Harness Routing Views in Wiring Systems

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G402

Inside the rear compartment, below the right side of the rear window trim panel

Harness Routing Views in Wiring Systems

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P100

Lower right side of the dash panel

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

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S230

IP wiring harness, approximately 18 cm (7 in) from the radio breakout

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S233

IP wiring harness, behind the center of the IP, approximately 4 cm (2 in) from the radio breakout

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S268

IP wiring harness, near the blower motor, approximately 7 cm (3 in) from the door lock relay breakout

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S303

Body wiring harness, on the floor, under the driver's seat, approximately 10 cm (4 in) from the C311 breakout

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S323

Body wiring harness, floor, on top of the tunnel between the front seat, approximately 10 cm (4 in) from the C250 breakout

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S325

Body wiring harness, left side floor, under the driver's seat, approximately 23 cm (9 in) from the G301 breakout

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S348

Body wiring harness, floor, under the passenger seat, approximately 16 cm (4 in) from the C312 breakout

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S350

Body wiring harness, floor, under the passenger seat, approximately 10 cm (4 in) from the C312 breakout

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S385

Quarter courtesy and reading lamp wiring harness, approximately 5 cm (2 in) from the right sunshade mirror breakout

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S414

Body wiring harness, inside the near right side of the trunk, approximately 5 cm (2 in) from the C420 breakout

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S424

Body wiring harness, left floor, under the rear seat, approximately 6 cm (2 in) from the P372 breakout

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S504

Left front door wiring harness, in the left front door, approximately 8 cm (3 in) from the window switch breakout

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S604

Right front door wiring harness, in the right front door, approximately 8 cm (3 in) from the window switch breakout

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