GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Ambient Light Sensor

Part of the Driver Information Center (DIC) switches, inside the top of the Driver Information Center (DIC) switches.

Instrument Panel, Gages, and Console Component Views in Instrument Panel Gauges and Console

Lighting Systems Connector End Views in Lighting Systems

Back Up Lamp Switch (MM6)

RH side of the manual transmission.

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Body Control Module (BCM)

RH footwell, mounted to the toe board, behind the carpet

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Body Control System Connector End Views in Body Control Systems

Brake Transmission Shift Interlock (BTSI) Control Solenoid

Center console, part of the shifter

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Tilt Wheel/Column Connector End Views in Steering Wheel and Column-Tilt

Center High Mounted Stop Lamp

Top center of the rear fascia

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Data Link Connector (DLC)

LH side of instrument panel, below the steering column

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Data Link Communications Connector End Views in Data Link Communications

Electronic Brake Traction Control Module (EBTCM)

Front LH side of the engine compartment, mounted on the frame rail

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Antilock Brake System Connector End Views in Antilock Brakes

Electronic Traction/Suspension Control Switch

Center console, between the shifter and storage compartment

Lighting Systems Component Views in Lighting Systems

Suspension Controls Connector End Views in Real Time Damping

Fog Lamp\Rear Compartment Lid Release Switch (Domestic)

Left of the steering column, mounted in the instrument panel

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Front and Rear Fog Lamp Switch (Export)

LH side of the steering column, mounted in the instrument panel

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Hazard Warning Switch

Top center of Instrument Panel

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Headlamp Opening Door Actuator Control Module

Front RH side below the RH headlamp assembly

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Lighting Systems Connector End Views in Lighting Systems

HVAC Control Assembly (C60)

Center of the instrument panel, under the radio

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HVAC Connector End Views in HVAC-Manual

HVAC Control Assembly (CJ2)

Center of the instrument panel, under the radio

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HVAC Connector End Views in HVAC-Automatic

Inside Rearview Mirror

Top center of the front windshield, bottom of mirror

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Lighting Systems Connector End Views in Lighting Systems

Instrument Cluster

Top LH side of instrument panel, behind the steering wheel

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

In Instrument Panel compartment, top RH side

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Instrument Panel Electrical Center

RH footwell, mounted on the toe board, behind the carpet

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LF Fog Lamp (Domestic)

Lower front LH side of the vehicle

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

LF Fog Lamp (Export)

Lower front LH side of the vehicle

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

LF Park Lamp (Domestic)

Lower front LH side of vehicle

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

LF Park Lamp (Export)

Lower front LH side of vehicle

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

LF Park/Turn Signal Lamp (Domestic)

Lower front LH side of the vehicle

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

LF Side Marker Lamp

Lower front LH side of the vehicle

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Lighting Systems Connector End Views in Lighting Systems

LF Turn Signal Lamp (Export)

Lower front LH side of the vehicle

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Lighting Systems Connector End Views in Lighting Systems

LH Door Control Module (DCM)

Behind the LH door trim panel, bottom center of the door, rear of speaker

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Power Door Systems Connector End Views in Door Systems

LH Door Switch

On the front center of the LH door trim panel

Lighting Systems Component Views in Lighting Systems

Power Door Systems Connector End Views in Door Systems

LH Headlamp Opening Door Assembly

In LH front side of the vehicle, between the LH fender and hood

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

LH Inline License Plate Lamp Fuse

Rear Body Harness, Approximately 10.0 cm (4.0 in) From Breakout For LR Backup Lamp

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LH Instrument Panel Courtesy Lamp

Mounted in the LH footwell, top LH side

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Lighting Systems Connector End Views in Lighting Systems

LH Rear Compartment Courtesy Lamp

Attached to the LH rear compartment trim panel

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LH Repeater Lamp (Export)

On LF fender behind LF wheel, side of the vehicle

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

LH Vanity Mirror Lamp

Behind the LH sunshade

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Lighting Systems Connector End Views in Lighting Systems

LR Backup Lamp (Domestic/Japan)

Attached to the LH side of the license plate opening

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

LR Backup Lamp (Europe)

Part Of LR Tail/Stop Lamp Assembly

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

LR Fog Lamp (Export)

Attached to the LH side of the license plate

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

LR License Lamp

Center of rear vehicle, above the LH side of license plate

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

LR Side Marker Lamp

LH rear quarter panel, rear of the wheel well

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Lighting Systems Connector End Views in Lighting Systems

LR Tail/Stop Lamp (Export)

Rear of the vehicle, LH side

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

LR Tail/Stop/Turn Signal Lamp (Domestic)

Rear of the vehicle, LH side

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

LR Turn Signal Lamp (Export)

Rear of the vehicle, LH side

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Multifunction Turn Signal Lever

LH stalk of the steering column

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Park/Neutral Position (PNP) and Backup Switch

LH side of the transmission

Engine Controls Component Views in Engine Controls 5.7L

Engine Controls Connector End Views in Engine Controls 5.7L

Radio

Center of Instrument Panel above the HVAC control Assembly

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Entertainment Connector End Views in Entertainment

RF Fog Lamp (Domestic)

Lower front of the vehicle, RH side

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

RF Fog Lamp (Export)

Lower front of the vehicle, RH side

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

RF Park Lamp (Export)

Lower front RH side of vehicle

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

RF Park/Turn Signal Lamp

Lower front RH side of the vehicle

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

RF Side Marker Lamp

Lower front RH side of the vehicle

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

RF Turn Signal Lamp (Export)

Lower front RH side of the vehicle

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

RH Door Control Module (DCM)

Behind the RH door trim panel, bottom center of the door, rear of speaker

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Power Door Systems Connector End Views in Door Systems

RH Door Switch

On the front center of the RH door trim panel

Lighting Systems Component Views in Lighting Systems

Power Door Systems Connector End Views in Door Systems

RH Headlamp Opening Door Assembly

In RH front side of the vehicle, between the RH fender and hood

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

RH Inline License Plate Lamp Fuse

Rear Body Harness, Approximately 10.0 cm (4.0 in) From Breakout For RR Backup Lamp

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RH Instrument Panel Courtesy Lamp

Mounted in the RH footwell, top RH side

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Lighting Systems Connector End Views in Lighting Systems

RH Rear Compartment Courtesy Lamp

Attached to the RH rear compartment trim panel

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RH Repeater Lamp (Export)

On RF fender behind RF wheel, side of the vehicle

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

RH Vanity Mirror Lamp

Behind the RH sunshade

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Lighting Systems Connector End Views in Lighting Systems

RR Backup Lamp (Domestic/Japan)

Attached to the RH side of the license plate opening

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

RR Backup Lamp (Europe)

Part Of RR Tail/Stop Lamp Assembly

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

RR Fog Lamp (Export)

Attached to the RH side of the license plate

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

RR License Lamp

Center of rear vehicle, above the RH side of license plate

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

RR Side Marker Lamp

RH rear quarter panel, rear of the wheel well

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Lighting Systems Connector End Views in Lighting Systems

RR Tail/Stop Lamp (Export)

RH side rear of the vehicle

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

RR Tail/Stop/Turn Signal Lamp (Domestic)

Rear of the vehicle, RH side

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

RR Turn Signal Lamp (Export)

Rear of the vehicle, RH side

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Star Connector #1

Instrument panel harness, serial data, LH side of the Body Control Module (BCM)

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Star Connector #2

Instrument panel harness, serial data, LH side of the Body Control Module (BCM)

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Stoplamp Switch

Mounted on the bracket in front of the brake pedal

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Throttle Actuator Control (TAC) Module

Behind the RF fender, between the wheelhouse and the dash panel, below the battery, attached to the Powertrain Control Module (PCM)

Engine Controls Component Views in Engine Controls 5.7L

Electronic Throttle Actuator Control Module Connector End Views in Engine Controls 5.7L

Underhood Electrical Center

RH side of the engine compartment, between the wheelhouse and the dash panel, front of the battery

Engine Controls Component Views in Engine Controls 5.7L

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Underhood Lamp

Attached to the RH underside of the hood

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Lighting Systems Connector End Views in Lighting Systems

C100 (8 cavities)

Forward lamp harness to forward lamp jumper harness, RH skid bar in front of the horns

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Inline Harness Connector End Views in Wiring Systems

C113 (2 cavities)

Forward lamp harness to underhood lamp jumper harness, right side of the lower radiator support.

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Inline Harness Connector End Views in Wiring Systems

C140 (10 cavities)

Transmission harness to forward lamp harness, RH side in engine compartment, below the battery

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Inline Harness Connector End Views in Wiring Systems

C146 (10 cavities)

Transmission harness to instrument panel harness, RH side rear of engine compartment, below the battery

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Inline Harness Connector End Views in Wiring Systems

C200 (6 cavities)

Instrument panel harness to RH door harness, in the rubber grommet on the RH Door

Power and Grounding Component Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C201 (6 cavities)

Instrument panel harness to LH door harness, in the rubber grommet on the LH Door

Power and Grounding Component Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C209 (23 cavities)

Instrument panel harness to steering column harness, LH side of the steering column, attached to the lower instrument panel bar - headlamp and turn signal switches.

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Inline Harness Connector End Views in Wiring Systems

C215 (10 cavities)

Instrument panel harness to hazard warning switch jumper harness, behind the hazard warning switch

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Inline Harness Connector End Views in Wiring Systems

C400 (8 cavities)

Transmission harness to rear body harness, RR wheelhouse, rear of the control arm

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Inline Harness Connector End Views in Wiring Systems

P200

Instrument panel harness, RH side of Instrument panel on dash panel

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P201

Instrument panel harness, LH side of Instrument panel in A-Pillar

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P202

Instrument panel harness, RH side of Instrument panel in A-Pillar

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P501

In front of the LH door

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P600

In front of the RH door

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S200

Instrument panel harness, approximately 22.5 cm (8.8 in) from the inside rearview mirror breakout (CKT 640)

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S202

Instrument panel harness, approximately 39.5 cm (15.5 in) from the inside rearview mirror breakout (CKT 150)

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S205

Instrument panel harness, approximately 6.5 cm (2.5 in) from the Data Link Connector (DLC) breakout (CKT 9)

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S206

Instrument panel harness, approximately 5 cm (1.9 in) from the blower motor control module connector breakout (CKT 1132)

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S212

Instrument Panel harness, approximately 22.5 cm (8.8 in) from the electronic accessory plug connector.

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S303

Front body harness, approximately 15.0 cm (5.9 in) from the RH rear speaker breakout (CKT 740)

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S402

Transmission harness, approximately 55.0 cm (21.6 in) from RR shock absorber breakout (CKT 150)

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S420 (Europe)

Rear body harness, approximately 6.5 cm (2.5 in) from the C400 breakout (CKT 122)

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S480 (Japan/Europe)

Rear body harness, approximately 3.5 cm (1.3 in) from the splice pack 400 breakout (CKT 9)

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S481 (Japan/Domestic)

Rear body harness, approximately 6.5 cm (2.5 in) from the LH backup lamp connector breakout (CKT 18)

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S482

Rear body harness, approximately 21.5 cm (8.4 in) left of the splice pack 400 breakout (CKT 24)

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S483 (Japan/Europe)

Rear body harness, approximately 6.5 cm (2.5 in) from the LH back up lamp connector breakout (CKT 9)

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S484 (Domestic)

Rear body harness, approximately 8.0 cm (3.1 in) left of the splice pack 400 breakout (CKT 24)

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S485 (Japan)

Rear body harness, approximately 5 cm (1.9 in) from LR license lamp breakout (CKT150)

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S490 (Japan/Europe)

Rear body harness, approximately 13.0 cm (5.1 in) from the C400 breakout (CKT 820)

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S492 (Domestic)

Rear body harness, approximately 6.5 cm (2.5 in) from the RH turn signal breakout (CKT 19)

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S494 (Japan/Europe)

Rear body harness, approximately 6.5 cm (2.5 in) from the RH turn signal breakout (CKT 9)

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S496 (Japan)

Rear body harness, approximately 6.5 cm (2.5 in) from the C400 breakout (CKT 19)

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S498 (Japan)

Rear body harness, at the RR backup lamp breakout (CKT 150)

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SP100 - Splice Pack 100

Forward lamp harness, grounded to G102, at the RH headlamp opening door assembly connector breakout (CKT150)

Power and Grounding Component Views in Wiring Systems

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SP101 - Splice Pack 101

Forward lamp harness, grounded to G101, at the LH headlamp opening door assembly connector breakout (CKT 150)

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SP102 - Splice Pack 102

Forward lamp jumper, taped to harness approximately 10.0 cm (3.9 in) left of C100. Grounded to G102 (CKT150)

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SP201 - Splice Pack 201

Instrument panel harness, grounded to G201 (CKT 150)

Power and Grounding Component Views in Wiring Systems

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SP202 - Splice Pack 202

Instrument panel harness, grounded to G202 (CKT 150)

Power and Grounding Component Views in Wiring Systems

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SP203 - Splice Pack 203

Instrument panel harness, grounded to G201 (CKT 351)

Power and Grounding Component Views in Wiring Systems

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SP302 - Splice Pack 302

Front body harness, approximately 83.5 cm (33.4 in) from RH power seat breakout (C302), grounded to G302 (CKT 150)

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SP400 - Splice Pack 400

Rear body harness, taped back to harness between backup lamp and tail/stop lamp breakout. Grounded to G401 (CKT 150)

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SP402 - Splice Pack 402 (Export)

Rear body harness, taped back to harness between auto fuse and RR license lamp breakout. Grounded to G401 (CKT 150)

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G101

Forward lamp harness, on frame rail between LH headlamp opening assembly and generator. part of SP101 (CKT 150)

Power and Grounding Component Views in Wiring Systems

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G102

Forward lamp harness, on the top of the RH frame rail, behind the RH headlamp assembly, ground for SP100 (CKT250)

Power and Grounding Component Views in Wiring Systems

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G201

Instrument panel harness, at base of LH A-Pillar, ground for SP201 and SP203 (CKT150 and CKT 351)

Power and Grounding Component Views in Wiring Systems

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G202

Instrument panel harness, at base of RH A-Pillar, ground for SP202 (CKT 150)

Power and Grounding Component Views in Wiring Systems

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G302

Front body harness, on the RH B-Pillar, ground for SP302 (CKT 150)

Power and Grounding Component Views in Wiring Systems

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G401 (F45)

Transmission harness, rear of the vehicle, on the inner side of the LH frame rail (CKT 150)

Power and Grounding Component Views in Wiring Systems

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G401 (W/O F45)

Transmission harness, rear of the vehicle, on the inner side of the LH frame rail (CKT 150)

Power and Grounding Component Views in Wiring Systems

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