GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Antenna

On top of the right front fender on the cowl

Entertainment Component Views

Entertainment Connector End Views

Body Control Module (BCM)

On the lower left side of the IP below the steering column

Body Control System Component Views in Body Control System

Body Control System Connector End Views in Body Control System

Body Wiring Harness Junction Block

Under the left side of the instrument panel near the left kick panel

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Cruise Control Module

On the left rear of the engine compartment

Cruise Control Component Views in Cruise Control

Cruise Control Connector End Views in Cruise Control

Door Speaker, LF

On the left front door trim panel

Entertainment Component Views

Entertainment Connector End Views

Door Speaker, RF

On the right front door trim panel

Entertainment Component Views

Entertainment Connector End Views

Door Speaker, LR

On the left rear door trim panel

Entertainment Component Views

Entertainment Connector End Views

Door Speaker, RR

On the right rear door trim panel

Entertainment Component Views

Entertainment Connector End Views

Door Speaker, LF, Tweeter

On the left front door trim panel

Entertainment Component Views

Entertainment Connector End Views

Door Speaker, RF, Tweeter

On the right front door trim panel

Entertainment Component Views

Entertainment Connector End Views

Engine Wiring Harness Junction Block

At the left side of the engine compartment near the battery

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Fuse Block

On the lower left side of the IP

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Ignition Switch

Part of the steering column assembly

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Power and Grounding Connector End Views in Wiring Systems

Instrument Cluster

On the left side of the IP above the steering column

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

I/P Wiring Harness Junction Block

On the lower right side of the IP

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Powertrain Control Module (PCM)

Near the left front inside the engine compartment

Engine Controls Component Views in Engine Controls-4.8L, 5.3-L, and 6.0L

Engine Controls Connector End Views in Engine Controls-4.8L, 5.3-L, and 6.0L

Radio

In the center of the IP

Entertainment Component Views

Entertainment Connector End Views

Radio Amplifier

To the right of the IP behind the compartment box

Entertainment Component Views

Entertainment Connector End Views

Rear Seat Audio (RSA)

In the rear of the front floor console

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Entertainment Connector End Views

Rear Speaker, LH

At the left rear of the passenger compartment

Entertainment Component Views

Entertainment Connector End Views

Rear Speaker, RH (Regular Cab)

At the right rear of the passenger compartment

Entertainment Component Views

Entertainment Connector End Views

Rear Speaker, RH (Extended Cab)

In the right rear door

Entertainment Component Views

Entertainment Connector End Views

Rear Speaker, LR, (D Pillar)

Located in the rear of vehicle on the "D" pillar

Entertainment Component Views

Entertainment Connector End Views

Rear Speaker, RR, (D Pillar)

Located in the rear of vehicle on the "D" pillar

Entertainment Component Views

Entertainment Connector End Views

Remote CD Player

In the rear of vehicle

--

Entertainment Connector End Views

Retained Accessory Power (RAP) Relay

In the Fuse Block

Electrical Center Identification Views in Wiring Systems

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Subwoofer Speaker

In the right rear of vehicle on the side panel

Entertainment Component Views

Entertainment Connector End Views

Suspension Control Module

In the right rear of vehicle near the wheel well

Suspension Controls Component Views in Real Time Damping (RTD)

Suspension Controls Connector End Views in Real Time Damping (RTD)

Vehicle Control Module (VCM)

On the left front of the engine compartment

Engine Controls Component Views in Engine Controls-4.3L

Engine Controls Connector End Views in Engine Controls-4.3L

Vehicle Interface Unit (VIU)

In the right side of IP above the compartment box

Cellular Communication Component Views in Cellular Communications

Cellular Communication Connector End Views in Cellular Communications

C100

Under the Engine Wiring Harness Junction Block

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C200

At the left kick panel next to the A pillar

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C201

At the steering column under the IP

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C204

At the left A pillar near the kick panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C207

To the right of I/P above the compartment box

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Inline Harness Connector End Views in Wiring Systems

C208

To the right of I/P behind kick panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C253

In the middle of IP near the radio

Entertainment Component Views

Inline Harness Connector End Views in Wiring Systems

C297

On the lower right side of the IP (Base only)

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Inline Harness Connector End Views in Wiring Systems

C297b

On the lower right side of the IP (Base only)

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Inline Harness Connector End Views in Wiring Systems

C298

At the right side of the IP at the kick panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C299

At the right side of the IP near the kick panel

--

Inline Harness Connector End Views in Wiring Systems

C307

Under the floor console

Entertainment Component Views

Inline Harness Connector End Views in Wiring Systems

C310b

Between the left rear door and the body

Harness Routing Views

Inline Harness Connector End Views

C396

Between the right rear door and the body

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G203

On the left upper IP at the A pillar

Power and Grounding Component Views in Wiring Systems

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P100

At the left rear of the engine compartment in the front of the dash

Power and Grounding Component Views

in Wiring Systems

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P500

Between the left front door and the body

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--

P600

Between the right front door and the body

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--

P700

Between the left rear door and the body

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--

P800

Between the right rear door and the body

--

--

Splice Pack 203 (SP203)

On the top left side of the IP near the A pillar

Power and Grounding Component Views in Wiring Systems

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S235

In the console harness

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--

S267

In the console harness

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--

S268

In the console harness

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--

S272

In the console harness

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