GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Ambient Light Sensor

On the front of the IP, in the defroster grille

Lighting Systems Component Views

Lighting Systems Connector End Views

Ash Tray Lamp

In the center front of the passenger compartment, in the ashtray

--

Lighting Systems Connector End Views

Backup Lamp, LH

On the left rear of the vehicle, near the taillamps

--

Lighting Systems Connector End Views

Backup Lamp, RH

On the right rear of the vehicle, near the taillamps

--

Lighting Systems Connector End Views

Blower Switch, Rear

On the rear of the center console, near the rear ash tray

--

HVAC Connector End Views in HVAC Systems with A/C - Automatic

Body Control Module (PZM)

In the left rear of the passenger compartment, behind the rear seat, on the electronics bay

Body Control System Component Views in Body Control System

Body Control System Connector End Views in Body Control System

Cigar Lighter

In the center front of the passenger compartment, in the front ash tray compartment

--

Power and Grounding Connector End Views in Wiring Systems

Cigar Lighter, Front

On the center of the IP, near the ash tray

--

Power and Grounding Connector End Views in Wiring Systems

Cigar Lighter, Rear

On the rear of the center console

--

Power and Grounding Connector End Views in Wiring Systems

Climate Control Panel (CCP)

On the center of the IP, under the radio

--

HVAC Connector End Views in HVAC Systems with A/C - Automatic

Cornering Lamp, LH

On the left front corner of the vehicle, near the headlamps

--

--

Cornering Lamp, RH

On the right front corner of the vehicle, near the headlamps

--

--

Courtesy/Reading Lamp, LH Front

In the left front of the passenger compartment, in the headliner

--

Lighting Systems Connector End Views

Courtesy/Reading Lamp Switch, LH Front

In the left front of the passenger compartment, in the headliner

--

--

Courtesy/Reading Lamp, LH Rear

In the left rear of the passenger compartment, in the headliner

--

Lighting Systems Connector End Views

Courtesy/Reading Lamp Switch, LH Rear

In the left rear of the passenger compartment, in the headliner

--

--

Courtesy/Reading Lamp, RH Front

In the right front of the passenger compartment, in the headliner

--

Lighting Systems Connector End Views

Courtesy/Reading Lamp Switch, RH Front

In the right front of the passenger compartment, in the headliner

--

--

Courtesy/Reading Lamp, RH Rear

In the right rear of the passenger compartment, in the headliner

--

Lighting Systems Connector End Views

Courtesy/Reading Lamp Switch, RH Rear

In the right rear of the passenger compartment, in the headliner

--

--

Door Lock Actuator, LH

On the rear of the left front door, on the door latch assembly

Lighting Systems Component Views

Power Door Systems Connector End Views in Doors

Door Lock Actuator, RH

On the rear of the right front door, on the door latch assembly

Lighting Systems Component Views

Power Door Systems Connector End Views in Doors

Door Lock Cylinder Switch, LH

On the rear of the left front door, in the door lock cylinder

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Power Door Systems Connector End Views in Doors

Door Lock Cylinder Switch, RH

On the rear of the right front door, in the door lock cylinder

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Power Door Systems Connector End Views in Doors

Driver Information Center (DIC) Switch

On the center of the IP, near the radio

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

Electronic PRNDL

In the center front of the passenger compartment, near the shifter assembly

--

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

Fog Lamp, LH

On the left front corner of the vehicle, below the headlamp

--

Lighting Systems Connector End Views

Fog Lamp, RH

On the right front corner of the vehicle, below the headlamp

--

Lighting Systems Connector End Views

Foot Well Courtesy Lamp, LH

Under the left side of the IP, on the sound insulator

--

Lighting Systems Connector End Views

Foot Well Courtesy Lamp, RH

Under the right side of the IP, on the sound insulator

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Lighting Systems Connector End Views

Hazard Flasher

Under the left side of the IP, to the left of the steering column base

Lighting Systems Component Views

Lighting Systems Connector End Views

Headlamp Dimmer Switch

Under the left side of the IP, on the left of the base of the steering column

Lighting Systems Component Views

Lighting Systems Connector End Views

Headlamp, LH Side

On the left front corner of the vehicle

--

--

Headlamp (Low Beam), LH Side

On the left front corner of the vehicle

--

Lighting Systems Connector End Views

Headlamp (Low Beam), RH Side

On the right front corner of the vehicle

--

Lighting Systems Connector End Views

Headlamp (High Beam), LH Side

On the left front corner of the vehicle

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Lighting Systems Connector End Views

Headlamp (High Beam), RH Side

On the right front corner of the vehicle

--

Lighting Systems Connector End Views

Headlamp, RH Side

On the right front corner of the vehicle

--

--

Headlamp Switch

On the left side of the IP, to the left of the steering column

Lighting Systems Component Views

Lighting Systems Connector End Views

Heated Seat Switch, Left Side

In the front center of the passenger compartment, on the top of the center console

Power Seat Component Views in Seats

Power Seat Connector End Views in Seats

Heated Seat Switch, Right Side

In the center front of the passenger compartment, on the top of the center console

Power Seat Component Views in Seats

Power Seat Connector End Views in Seats

High Mount Stop Lamp

in the center rear of the passenger compartment, on the package shelf

--

Lighting Systems Connector End Views

Inadvertent Power Relay

On the left side of the engine compartment, above the engine compartment micro relay center

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Inflatable Restraint Steering Wheel Module Coil

At top of steering column, behind the steering wheel

--

--

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

IP Compartment Lamp

On the right side of the IP, in the IP compartment

--

Lighting Systems Connector End Views

License Lamp

On the left rear of the vehicle, near the license plate

--

Lighting Systems Connector End Views

Park/Turn Lamp, LH Front

On the left front of the vehicle, near the headlamp

--

Lighting Systems Connector End Views

Park/Turn Lamp, RH Front

On the right front of the vehicle, near the headlamp

--

Lighting Systems Connector End Views

Passenger Climate Control

In the right front of the passenger compartment, on the Climate Control Panel

--

HVAC Connector End Views in HVAC Systems with A/C - Automatic

Power Door Lock Switch, Left

In the left front of the passenger compartment, on the left door

--

Power Door Systems Connector End Views in Doors

Power Door Lock Switch, Right

In the right front of the passenger compartment, on the right door

--

Power Door Systems Connector End Views in Doors

Power Window Switch, Left

In the left front of the passenger compartment, on the left door

--

Power Door Systems Connector End Views in Doors

Power Window Switch, Right

In the right front of the passenger compartment, on the right door

--

Power Door Systems Connector End Views in Doors

Radio (IRC)

On the center of the IP, above the climate control panel

--

Entertainment Connector End Views in Entertainment

Radio Amplifier

In the center rear of the passenger compartment, behind the rear seat, on the electronics bay

Body Control System Component Views in Body Control System

Entertainment Connector End Views in Entertainment

Rear Compartment Fuse Block

In the left front of the rear compartment, on the electronics bay

Body Control System Component Views in Body Control System

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Rear Compartment Lamp

In the center front of the rear compartment, on the bottom of the package shelf

--

--

Rear Compartment Lid Latch Switch

On the center rear of the rear compartment lid, on the rear compartment lid latch

Body Rear End Component Views in Body Rear End

Body Rear End Connector End Views in Body Rear End

Rear Compartment Relay Center 1

In the left rear of the passenger compartment, behind the rear seat, on the electronics bay

Body Control System Component Views in Body Control System

Power and Grounding Connector End Views in Wiring Systems

Rear Compartment Relay Center 2

In the left rear of the passenger compartment, behind the rear seat, on the electronics bay

Body Control System Component Views in Body Control System

Power and Grounding Connector End Views in Wiring Systems

Rear Compartment Relay Center 3

In the left rear of the passenger compartment, behind the rear seat on, the electronics bay

Body Control System Component Views in Body Control System

Power and Grounding Connector End Views in Wiring Systems

Rear Compartment Relay Center 4

In the right rear of the passenger compartment, behind the rear seat, on the electronics bay

Body Control System Component Views in Body Control System

Power and Grounding Connector End Views in Wiring Systems

Side Marker Lamp, LH Front

On the left front of the vehicle, near the headlamp

--

Lighting Systems Connector End Views

Side Marker Lamp, LH Rear

On the left rear of the vehicle, near the tail lamp assembly

--

Lighting Systems Connector End Views

Side Marker Lamp, RH Front

On the right front of the vehicle, near the headlamp

--

Lighting Systems Connector End Views

Side Marker Lamp, RH Rear

On the right rear of the vehicle, near the tail lamp assembly

--

Lighting Systems Connector End Views

Steering Column Fuse Holder

Under the left side of the IP, near the base of the steering column

--

--

Steering Column Lock Cylinder

In the left front of the passenger compartment, in the right of the steering column

Lighting Systems Component Views

--

Steering Wheel Controls

In the left front of the passenger compartment, on the steering wheel

--

--

Stoplamp/AT Shift Lock Control Switch

Under the left side of the IP, near the top of the brake pedal

--

--

Tail/Stop/Turn Lamp, LH

On the left rear of the vehicle, in the tail lamp assembly

--

Lighting Systems Connector End Views

Tail/Stop/Turn Lamp, RH

On the right rear of the vehicle, in the tail lamp assembly

--

Lighting Systems Connector End Views

Turn/Hazard Switch

In the left front of the passenger compartment, in the top of the steering column

Lighting Systems Component Views

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Turn Signal Flasher

Under the left side of the IP, near the steering column

Lighting Systems Component Views

Lighting Systems Connector End Views in Lighting Systems

Underhood Fuse Block

On the left side of the engine compartment, near the front strut tower

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Underhood Fuse Block, Left Side

On the left side of the engine compartment, near the underhood fuse block

Power and Grounding Component Views in Wiring Systems

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Underhood Fuse Block, Right Side

On the left side of the engine compartment, near the underhood fuse block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Underhood Lamp

In the rear of the engine compartment, on the hood

--

Lighting Systems Connector End Views

Underhood Relay Center

On the left side of the engine compartment, near the underhood fuse block

Power and Grounding Component Views in Wiring Systems

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Vanity Mirror, LH

In the left front of the passenger compartment, in the sunshade

--

Lighting Systems Connector End Views

Vanity Mirror, RH

In the right front of the passenger compartment, in the sunshade

--

Lighting Systems Connector End Views

C103 (7 cavities)

Body harness to the right front lamp harness, near the right front lamp assembly

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C104 (7 cavities)

Body harness to the left front lamp harness, near the left front lamp assembly

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C201 (16 cavities)

Body harness to the IP harness, under the left side of the IP, near the steering column

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C202 (47 cavities)

Body harness to the steering column harness, under the left side of the IP, near the steering column

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C203 (16 cavities)

Body harness to the IP harness, under the right side of the IP, near the IP compartment

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C205 (23 cavities)

Body harness to the engine harness, under the right side of the IP, near the IP compartment

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C210 (2 cavities)

Body harness to the upfitter harness, under the center of the IP, near the radio

--

Inline Harness Connector End Views in Wiring Systems

C301 (8 cavities)

Body harness to the console harness, under the center console compartment

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C307 (4 cavities)

Body harness to the body harness, tapped in the body harness, approximately 15 cm (5.9 in) from the cross car breakout

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C308 (10 cavities)

Body harness to the center console harness, under the center console compartment

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C309 (6 cavities)

Body harness to the center console harness, under the center console compartment

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C315 (10 cavities)

Body harness to the headliner harness, in the left rear of the passenger compartment, near the headliner

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C408 (4 cavities)

Body harness to the license plate lamp harness, on the left side of the rear compartment lid, near the left hinge

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C420 (6 cavities)

Body harness to the left tail lamp harness, in the left rear of the rear compartment, near the tail lamp

--

Inline Harness Connector End Views in Wiring Systems

C422 (6 cavities)

Body harness to the right tail lamp harness, in the right rear of the rear compartment, near the tail lamp

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G100

On the right front corner of the engine compartment, on the radiator support

Power and Grounding Component Views in Wiring Systems

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G101

On the left front corner of the engine compartment, on the radiator support

Power and Grounding Component Views in Wiring Systems

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G201

In the right front of the passenger compartment, behind the kick panel

Power and Grounding Component Views in Wiring Systems

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G203

In the left front of the passenger compartment, behind the kick panel

Power and Grounding Component Views in Wiring Systems

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G204

In the left front of the passenger compartment, behind the kick panel

Power and Grounding Component Views in Wiring Systems

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G205

In the right front of the passenger compartment, behind the kick panel

Power and Grounding Component Views in Wiring Systems

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G302

Under the left front Seat, on seat pan bar 3

Power and Grounding Component Views in Wiring Systems

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G400

In the left rear of the passenger compartment, under the rear seat

Power and Grounding Component Views in Wiring Systems

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G401

In the right rear of the passenger compartment, under the rear seat

Power and Grounding Component Views in Wiring Systems

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G402

In the left rear of the rear compartment, near the tail lamp assembly

Power and Grounding Component Views in Wiring Systems

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P100

On the right rear of the engine compartment, near the strut tower

Harness Routing Views in Wiring Systems

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P101

On the left rear of the engine compartment, near the strut tower

Harness Routing Views in Wiring Systems

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P105

On the left rear of the engine compartment, near the strut tower

Harness Routing Views in Wiring Systems

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P106

On the right rear of the engine compartment, near the strut tower

Harness Routing Views in Wiring Systems

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P404

In the left rear of the rear compartment, near the tail lamp assembly

Harness Routing Views in Wiring Systems

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P405

On the center rear of the rear compartment lid, near the license lamp assembly

Harness Routing Views in Wiring Systems

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P406

In the left rear of the rear compartment, near the tail lamp assembly

Harness Routing Views in Wiring Systems

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P500

On the front of the left front door jamb, near the door hinges

Harness Routing Views in Wiring Systems

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P600

On the front of the right front door jamb, near the door hinges

Harness Routing Views in Wiring Systems

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S105

In the body harness, approximately 4 cm (1.57 in) from the C101 breakout

Harness Routing Views in Wiring Systems

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S106

In the body harness, approximately 6.5 cm (2.56 in) from the C104 breakout

Harness Routing Views in Wiring Systems

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S107

In the body harness, approximately 16.5 cm (6.5 in) from the C104 breakout

Harness Routing Views in Wiring Systems

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S108

In the body harness, approximately 8.5 cm (3.35 in) from the C103 breakout

Harness Routing Views in Wiring Systems

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S131

In the left forward lamp harness, approximately 26.5 cm (10.43 in) from the left cornering lamp

Harness Routing Views in Wiring Systems

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S132

In the right forward lamp harness, approximately 35 cm (13.78 in) from the right cornering lamp

Harness Routing Views in Wiring Systems

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S133

In the left forward lamp harness, approximately 35 cm (13.78 in) from the left cornering lamp

Harness Routing Views in Wiring Systems

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S134

In the right forward lamp harness, approximately 26.5 cm (10.43 in) from the right cornering lamp

Harness Routing Views in Wiring Systems

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S200

In the body harness, approximately 8 cm (3.15 in) from P500

Harness Routing Views in Wiring Systems

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S201

In the body harness, approximately 2.5 cm (0.98 in) from the G204 breakout

Harness Routing Views in Wiring Systems

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S202

In the body harness, approximately 5.5 cm (2.17 in) from the G204 breakout

Harness Routing Views in Wiring Systems

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S203

In the body harness, approximately 4.5 cm (1.77 in) from the SDM connector breakout

Harness Routing Views in Wiring Systems

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S205

In the body harness, approximately 4 cm (1.57 in) from the DLC connector breakout

Harness Routing Views in Wiring Systems

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S206

In the body harness, approximately 7 cm (2.76 in) into the instrument cluster connector breakout

Harness Routing Views in Wiring Systems

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S207

In the body harness, approximately 34.5 cm (13.58 in) into the instrument cluster connector breakout

Harness Routing Views in Wiring Systems

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S211

In the body harness, approximately 20 cm (7.87 in) from C203

Harness Routing Views in Wiring Systems

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S215

In the IP harness, approximately 21 cm (8.27 in) from C203

Harness Routing Views in Wiring Systems

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S216

In the IP harness, approximately 21 cm (8.27 in) from the valet switch connector

Harness Routing Views in Wiring Systems

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S218

In the IP harness, approximately 5 cm (1.97 in) from the sun load sensor connector breakout

Harness Routing Views in Wiring Systems

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S219

In the IP harness, approximately 4 cm (1.57 in) from the DIC switch connector breakout

Harness Routing Views in Wiring Systems

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S220

In the IP harness, approximately 26.5 cm (10.43 in) from C201

Harness Routing Views in Wiring Systems

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S223

In the engine harness, approximately 22.5 cm (8.86 in) from P100

Harness Routing Views in Wiring Systems

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S302

In the body harness, approximately 31 cm (12.2 in) from the rear seat channel breakout

Harness Routing Views in Wiring Systems

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S303

In the body harness, approximately 24.5 cm (9.65 in) from the rear seat channel breakout

Harness Routing Views in Wiring Systems

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S305

In the body harness, approximately 11.5 cm (4.53 in) from the rear seat channel breakout

Harness Routing Views in Wiring Systems

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S307

In the body harness, approximately 1.5 cm (0.59 in) from the rear seat channel breakout

Harness Routing Views in Wiring Systems

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S308

In the body harness, approximately 14 cm (5.51 in) from P700

Harness Routing Views in Wiring Systems

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S313

In the body harness, approximately 6.5 cm (2.56 in) from the G302 breakout

Harness Routing Views in Wiring Systems

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S314

In the body harness, approximately 6.5 cm (2.56 in) from the G302 breakout

Harness Routing Views in Wiring Systems

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S315

In the body harness, approximately 10.5 cm (4.13 in) from the C304 breakout

Harness Routing Views in Wiring Systems

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S317

In the body harness, approximately 6.5 cm (2.56 in) from the SDM connector breakout

Harness Routing Views in Wiring Systems

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S318

In the body harness, approximately 17 cm (6.69 in) from the SDM connector breakout

Harness Routing Views in Wiring Systems

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S323

In the body harness, approximately 30 cm (11.81 in) from the P600 breakout

Harness Routing Views in Wiring Systems

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S328

In the body harness, approximately 13 cm (5.12 in) from the end of the right seat pan channel

Harness Routing Views in Wiring Systems

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S338

In the headliner harness, approximately 4 cm (1.57 in) from the left rear header lamp breakout

Harness Routing Views in Wiring Systems

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S339

In the headliner harness, approximately 11.5 cm (4.53 in) from the left rear header lamp breakout

Harness Routing Views in Wiring Systems

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S340

In the headliner harness, approximately 13 cm (5.12 in) from the left vanity mirror breakout

Harness Routing Views in Wiring Systems

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S341

In the headliner harness, approximately 43 cm (16.93 in) from the right rear header lamp

Harness Routing Views in Wiring Systems

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S342

In the headliner harness, approximately 36.5 cm (14.37 in) from the right rear header lamp

Harness Routing Views in Wiring Systems

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S343

In the console harness, approximately 5 cm (1.97 in) from the cigar lighter breakout

Harness Routing Views in Wiring Systems

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S344

In the console harness, approximately 4 cm (1.57 in) from the cigar lighter breakout

Harness Routing Views in Wiring Systems

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S347

In the console harness, approximately 2.5 cm (0.98 in) from the rear blower switch breakout

Harness Routing Views in Wiring Systems

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S402

In the body harness, approximately 29 cm (11.41 in) into the cross car breakout

Harness Routing Views in Wiring Systems

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S404

In the body harness, approximately 21 cm (8.27 in) into the cross car breakout

Harness Routing Views in Wiring Systems

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S405

In the body harness, approximately 35.5 cm (13.98 in) into the cross car breakout

Harness Routing Views in Wiring Systems

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S406

In the body harness, approximately 6.5 cm (2.56 in) from the P700 breakout

Harness Routing Views in Wiring Systems

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S407

In the body harness, approximately 77.5 cm (30.51 in) into the cross car breakout

Harness Routing Views in Wiring Systems

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S411

In the body harness, approximately 8 cm (3.15 in) from the C313 breakout

Harness Routing Views in Wiring Systems

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S412

In the body harness, approximately 13 cm (5.12 in) from C409

Harness Routing Views in Wiring Systems

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S414

In the body harness, approximately 10 cm (3.94 in) into the C407 breakout

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--

S417

In the body harness, approximately 4 cm (1.57 in) from the C420 breakout

Harness Routing Views in Wiring Systems

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S423

In the left rear lamp harness, approximately 7.5 cm (2.95 in) from P404

Harness Routing Views in Wiring Systems

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S424

In the right rear lamp harness, approximately 7.5 cm (2.95 in) from P406

Harness Routing Views in Wiring Systems

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S425

In the license lamp harness, approximately 4 cm (1.57 in) from P405

Harness Routing Views in Wiring Systems

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S429

In the license lamp harness, approximately 4 cm (1.57 in) from P405

Harness Routing Views in Wiring Systems

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S434

In the body harness, approximately 10 cm (3.94 in) into the right seat pan channel

Harness Routing Views in Wiring Systems

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S505

In the body harness, approximately 34 cm (13.39 in) from the C500 breakout

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