GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Automatic Transaxle Shift Interlock (BTSI) Control Solenoid (w/ RPO D55)

In the center console

Power and Grounding Component Views in Wiring Systems

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Automatic Transaxle Shift Interlock (BTSI) Control Solenoid (w/o RPO D55)

On the steering column

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Backup Lamps (2-Door)

In the rear lamp assembly on the fender

Lighting Systems Component Views in Lighting Systems

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Backup Lamps (4-Door)

Center rear of the vehicle on the rear compartment lid

Lighting Systems Component Views in Lighting Systems

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Backup Lamp Relay

Part of the RH instrument panel fuse block

Power and Grounding Component Views in Wiring Systems

Lighting Systems Connector End Views in Lighting Systems

Battery Rundown Protection Relay

Part of the RH instrument panel fuse block

Power and Grounding Component Views in Wiring Systems

Lighting Systems Connector End Views in Lighting Systems

Body Control Module (BCM)

LH side of the instrument panel, above parking brake

Body Control System Component Views

Body Control System Connector End Views

Bottom Underhood Accessory Wiring Junction Block

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

Power and Grounding Component Views in Wiring Systems

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Data Link Connector (DLC)

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

Data Link Communications Component Views in Data Link Communications

Data Link Communications Connector End Views in Data Link Communications

Daytime Running Lamp (DRL) Ambient Light Sensor

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

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Daytime Running Lamp (DRL) Relay

Part of the Engine Wiring Harness Junction Block (Top)

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Dome Lamp

Center of the underside of the roof

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Door Lock Cylinder Switch (RPO UA6 Only)

Part of door lock actuator, rear edge of front door

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Door Lock, Front (Actuator), C2

Rear edge of the front door

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Door Lock, Front (Ajar Switch), C1

Rear edge of the front door

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Door Lock, Rear (Actuator)

Rear edge of the rear door

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Door Lock, Rear (Ajar Switch)

Rear edge of the rear door

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Driver Information Display

In the front center of the roof lining

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

Electronic Brake Control Module (EBCM)

In the LR side of engine compartment, mounted on the ABS hydraulic modulator

Antilock Brake System Component Views in Antilock Brake System

Antilock Brake System Connector End Views in Antilock Brake System

Electronic Traction Control Switch (2-Door)

On the center console

Antilock Brake System Component Views in Antilock Brake System

Antilock Brake System Connector End Views in Antilock Brake System

Electronic Traction Control Switch (4-Door)

LH of the instrument panel

Antilock Brake System Component Views in Antilock Brake System

Antilock Brake System Connector End Views in Antilock Brake System

Emergency Vehicle Rear Window Lid Lamp

Mounted to the inside of the rear compartment lid

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Fog Lamps

On the front of the vehicle

Lighting Systems Component Views in Lighting System

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Fog Lamp Relay

In the Engine Wiring Harness Junction Block (Top)

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Fog Lamp Switch

In the LH side of instrument panel, next to the headlamp switch

Lighting Systems Component Views in Lighting System

Lighting Systems Connector End Views in Lighting Systems

Footwell Lamps

Mounted below the instrument panel, on the instrument panel knee bolster

Lighting Systems Component Views in Lighting System

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Headlamp Relay

Inside the LH instrument panel fuse block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Headlamp Dimmer Switch

Mounted to the steering column

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Headlamp Switch

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

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Headlamps

Front of the vehicle

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Heated Seat Switch, Driver (2-Door)

Mounted on the center console

Power Seat Component Views in Seats

Power Seat Connector End Views in Seats

Heated Seat Switch, Driver (4-Door)

On the LH side of the seat

Power Seat Component Views in Seats

Power Seat Connector End Views in Seats

Heater-A/C Control

Center of the instrument panel

HVAC Component Views in HVAC Systems - Manual

HVAC Connector End Views in HVAC Systems - Manual

Horn Relay

inside top underhood accessory wiring junction block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Ignition Key Alarm Switch

Part of the ignition key lock cylinder, on the instrument panel

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Inside Rearview Mirror

Center of the windshield header

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Instrument Cluster

LH 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

Instrument Panel Compartment Lamp

Top right of the instrument panel compartment opening

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

LH IP Accessory Wiring Junction Block

LH side of the instrument panel, in the left front door opening

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Park Brake Indicator Switch

Mounted to parking brake, lower left side of the drivers footwell

Hydraulic Brake Component Views in Hydraulic Brakes

Lighting Systems Connector End Views in Lighting Systems

Park Lamp Relay

Inside RH instrument panel fuse block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Passlockā„¢ Sensor

Part of the ignition switch assembly

Theft Deterrent System Component Views in Theft Deterrent

Theft Deterrent System Connector End Views in Theft Deterrent

Powertrain Control Module (PCM) (VIN E)

LH side of the engine compartment, forward of the strut tower, inside air box

Engine Controls Component Views in Engine Controls -- 3.4L

Engine Controls Connector End Views in Engine Controls -- 3.4L

Powertrain Control Module (PCM) (VIN K)

LH side of the engine compartment, forward of the strut tower, inside air box

Engine Controls Component Views in Engine Controls -- 3.8L

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

Radio

Center of the instrument panel

Entertainment Component Views in Entertainment

Entertainment Connector End Views in Entertainment

Retained Accessory Time Power (RAP) Relay

Located in the LH instrument panel fuse block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Rear Compartment Courtesy Lamp

Center of the rear compartment, under the rear package shelf

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Rear Compartment Lid Ajar Indicator Switch

Center of the rear compartment lid

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Body Rear End Connector End Views in Body Rear End

Rear Compartment Lid Lock Release Actuator

Center of the rear compartment lid

Body Rear End Component Views in Body Rear End

Body Rear End Connector End Views in Body Rear End

Rear Compartment Lid Release Switch

Left side of the instrument panel

Body Rear End Component Views in Body Rear End

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Rear Compartment Lid Lamp Relay

Inside the top underhood accessory wiring junction block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Rear Window Defogger Relay

In the RH instrument panel accessory wiring junction block

Stationary Windows Component Views in Stationary Windows

Stationary Windows Connector End Views in Stationary Windows

Remote Control Door Lock Receiver (RCDLR)

On the upper center of the instrument panel, next to the DRL ambient light sensor

Keyless Entry Component Views in Keyless Entry

Keyless Entry Connector End Views in Keyless Entry

RH IP Accessory Wiring Junction Block

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

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

RH Temperature Electric Actuator

Right side of Heater-A/C assembly

HVAC Component Views in HVAC Systems - Manual

HVAC Connector End Views in HVAC Systems - Manual

Roof Rail Courtesy/Reading Lamps

Mounted on the roof headliner

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Splice Pack SP205

Next to the LH IP accessory wiring junction block wiring harness, taped on harness

Data Link Communications Component Views in Data Link Communications

Data Link Communications Connector End Views in Data Link Communications

Stop Lamp Switch

Behind the instrument panel, on the brake pedal support

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Lighting Systems Connector End Views in Lighting Systems

Sunshade Illuminated Mirror

Side of the windshield header

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Lighting Systems Connector End Views in Lighting Systems

Surveillance Switch

In the LH side of instrument panel

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Top Underhood Accessory Wiring Junction Block

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

Power and Grounding Component Views in Wiring Systems

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C101 (20 cavities)

Engine harness to the instrument panel harness, in the left side of the engine compartment, on the strut tower

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Inline Harness Connector End Views in Wiring Systems

C106 (24 cavities)

Instrument panel harness, front right side of engine compartment attached to frame rail

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C122 (SEO) (5 cavities)

Forward lamp harness

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C201 (40 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

C301 (40 cavity)

Body 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 (40 cavities)

Body 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

C312, 4 Door (8 cavities)

Body harness, below the passenger seat

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C315 (8 cavities)

Body harness, center of passenger compartment, behind transaxle position selector

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C355 (7 cavities)

Body 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 (7 cavities)

Body harness to right rear door harness, mounted to the right B pillar

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C373 (16 cavities)

Right side of the rear compartment package shelf

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C430 (4 cavities)

Right side 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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G201

Right of the upper steering column support attached to the I/P carrier

Harness Routing Views in Wiring Systems

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G203

Behind the instrument panel in the right side of the brake pedal bracket

Harness Routing Views in Wiring Systems

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G301

Just forward from the base of the left B pillar

Harness Routing Views in Wiring Systems

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G302

Just forward from the base of the right B pillar

Harness Routing Views in Wiring Systems

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P100

Right rear of the engine compartment, near the strut tower

Harness Routing Views in Wiring Systems

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P101

Left rear of the engine compartment, near the strut tower

Harness Routing Views in Wiring Systems

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P401

Right side of the rear compartment opening, water drainage indention

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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P900

Inside RH side of rear compartment, near top of rear compartment lid

Harness Routing Views in Wiring Systems

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S150

Forward lamp harness, near LH headlamp, approximately 17 cm (7 in) from the outside air temperature sensor

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S229

Instrument panel harness, behind the right center of IP, approximately 8.5 cm (3 in) from the ignition switch breakout

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S236

Instrument panel harness, behind right side of Instrument panel, approximately 4 cm (2 in) from the body control module breakout

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S253

Instrument panel harness, behind lower right side of instrument panel, approximately 4 cm (2 in) from the data link connector breakout

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C320 (2-Door )

Main body harness, running along the left side of passenger compartment, approximately 6.5 cm (2 in) from the inflatable restraint driver seat module breakout

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S320 (4-Door )

Body harness, left side of passenger compartment, approximately 6.5 cm (2 in) from the inflatable restraint driver seat breakout

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S322 (2-Door)

Body harness, below driver seat, approximately 10 cm (4 in) from the inflatable restraint driver seat module breakout

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S322 (4-Door)

Body harness, behind left side of passenger compartment, approximately 10 cm (4 in) from the inflatable restraint driver seat module breakout

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S378 (2-Door)

Body harness, right side near behind passenger seat, approximately 43.5 cm (17 in) from inline C302 right front door harness breakout

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S380

Body harness, inside the rear compartment, approximately 4 cm (2 in) from inline C400 to right tail lamp harness breakout

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S390 (2-Door)

Roof harness, forward right side, approximately 11.5 cm (4 in) from the dome lamp breakout

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S390 (4-Door)

Roof harness, forward right side, approximately 18 cm (7 in) from the dome lamp breakout

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S391 (2-Door)

Roof harness, forward right side, approximately 11.5 cm (6 in) from the dome lamp breakout

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S391 (4-Door)

Roof harness, forward right side, approximately 24.5 cm (9 in) from the dome lamp breakout

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S392 (2-Door)

Roof harness, forward right side, approximately 22 cm (9 in) from the dome lamp breakout

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S392 (4-Door)

Roof harness, forward right side, approximately 31 cm (12 in) from the dome lamp breakout

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S401

Rear body harness, front left side of rear compartment, approximately 26 cm (10 in) from passthrough P400

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S900 (2-Door)

Rear compartment lid, approximately 36 cm (14 in) from C901 inline to backup lamp breakout

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S900 (4-Door)

Rear deck lid harness, left side of lid, approximately 40.5 cm (16 in) from the center high mounted stop lamp breakout

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