GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

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

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

Forward/Rearward Motor (Seat)

Under the seat

Power Seat Component Views

--

Front Tilt Motor (Seat)

Under the seat

Power Seat Component Views

--

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

Heated Seat Relay, Driver

In the driver seat

Electrical Center Identification Views in Wiring Systems

--

Heated Seat Relay, Passenger

In the passenger seat

Electrical Center Identification Views in Wiring Systems

--

Heated Seat Switch, Driver

In the left door trim panel

Power Seat Component Views

--

Heated/Memory Seat Switch,Driver

In the left door trim panel

--

Power Seat Connector End Views in Doors

Heated Seat Switch, Passenger

In the right door trim panel

Power Seat Component Views

--

Inflatable Restraint Sensing & Diagnostic Module

Under the driver seat

SIR Component Views in SIR

SIR Connector End Views in SIR

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

Memory Seat Switch

On the driver door trim panel

--

--

Power Seat Switch, Driver

In the left side of driver seat

Power Seat Component Views

--

Power Seat Switch, Passenger

In the right side of the passenger seat

Power Seat Component Views

--

Power Window/Door Lock Switch, LH

On the left door trim panel armrest

Power Seat Component Views

Power Seat Connector End Views in Doors

Rear Tilt Motor (Seat)

Part of the seat assembly

--

--

Recliner Motor (Seat)

Part of the seat assembly

Power Seat Component Views

--

Seat Belt Switch

In the seat belt buckle

--

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

Seat Heating Element, Driver

In the seat cushion and the seat back left seat

--

--

Seat Heating Element, Passenger

In the seat cushion and the seat back right seat

--

--

Seat Thermistor, Driver

In the seat cushion in the left seat

--

--

Seat Thermistor, Passenger

In the seat cushion in the right seat

--

--

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

C301

Under the left seat

--

Inline Harness Connector End Views in Wiring Systems

C302

At the left "A" pillar near the kick panel

--

Inline Harness Connector End Views in Wiring Systems

C303

Under the right seat

--

Inline Harness Connector End Views in Wiring Systems

C304

Near the left B pillar

--

Inline Harness Connector End Views in Wiring Systems

C305

Under the left front seat

--

Inline Harness Connector End Views in Wiring Systems

C398

Near the left kick panel at the "A" pillar

--

Inline Harness Connector End Views in Wiring Systems

C399

Under the right seat

--

Inline Harness Connector End Views in Wiring Systems

G200

On the right upper IP at the A pillar

Power and Grounding Component Views in Wiring Systems

--

G203

On the left upper IP at the "A" pillar

Power and Grounding Component Views in Wiring Systems

--

G304

Under the driver seat

Power and Grounding Component Views in Wiring Systems

--

P100

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

Power and Grounding Component Views in Wiring Systems

--

P500

Between the left front door and the body

Power and Grounding Component Views in Wiring Systems

--

P600

Between the right front door and the body

Power and Grounding Component Views in Wiring Systems

--

Splice Pack 203 (SP203)

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

Harness Routing Views in Wiring Systems

--