GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

A/C Compressor Control Module

Below the right side of the IP, attached to the evaporator case

HVAC Component Views in HVAC

HVAC Connector End Views in HVAC

A/C Condenser Fan Motor

The right side of the grille, in front of the A/C condenser

HVAC Component Views in HVAC

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A/C Refrigerant (Dual) Pressure Switch

The right rear side of the engine compartment, near the strut tower

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A/C Switch

The center of the IP, above the radio

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HVAC Connector End Views in HVAC

Audio Alarm Module

The left side of the lower IP, to the left of the steering column

Audible Warnings Component Views in Instrument Panel, Gauges and Console

Audible Warnings Connector End Views in Instrument Panel, Gauges and Console

Backup Lamp Switch (Manual Transaxle)

The left side of the engine compartment, the top of the transaxle

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Battery

The left side of the engine compartment

Power and Grounding Component Views

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Blower Motor

Behind the right side of the IP

HVAC Component Views in HVAC

HVAC Connector End Views in HVAC

Blower Speed Selector Switch

The center of the IP, above the radio

HVAC Component Views in HVAC

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Brake Fluid Level Switch

In the brake-fluid reservoir

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Hydraulic Brake Connector End Views

Camshaft Position Sensor (VIN 2)

The cylinder head, near the ignition coil 2

Engine Controls Component Views in Engine Controls

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Center High-Mounted Stoplamp (CHMSL)

The bottom of the rear window

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Lighting Systems Connector End Views in Lighting Systems

Cigar Lighter

The center of the IP, below the radio

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Power and Grounding Connector End Views

Clutch Pedal Position (CPP) Switch (Manual Transaxle)

Mounted above the clutch pedal

Engine Electrical Component Views in Engine Electrical

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Data Link Connector (DLC) OBD 2

Below the left side of the IP, near the center console

Data Link Communications Component Views in Data Link Communications

Data Link Communications Connector End Views in Data Link Communications

Daytime Running Lamps (DRL) Control Module

Behind the left side of the IP

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Duty Check Data Link Connector

The passenger compartment, taped to the harness behind the IP compartment

Data Link Communications Component Views in Data Link Communications

Data Link Communications Connector End Views in Data Link Communications

Early Fuel Evaporation (EFE) Heater (VIN 6)

Mounted between the intake manifold and the throttle body

Engine Controls Component Views in Engine Controls

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Electronic Brake Control Module (EBCM) (With ABS)

Behind the left IP, above the junction block

Antilock Brake System Component Views in Antilock Brake System

Antilock Brake System Connector End Views in Antilock Brake System

Engine Cooling Fan Motor

The left front side of the engine compartment, behind the radiator

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Cooling System Connector End Views in Engine Cooling

Front Washer Pump

The left front side of the engine compartment, under the washer fluid reservoir

Wiper/Washer Component Views in Wipers/Washer Systems

Wiper/Washer Connector End Views in Wipers/Washer Systems

Front Wiper Motor

The right rear side of the engine compartment, against the bulkhead

Wiper/Washer Component Views in Wipers/Washer Systems

Wiper/Washer Connector End Views in Wipers/Washer Systems

Fuel Sender Assembly

In the fuel tank

Engine Controls Component Views in Engine Controls

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

Fuse Box

The left side of the engine compartment, mounted on the left inner side of the fender, behind the relay box

Power and Grounding Component Views

Power and Grounding Connector End Views

Generator

The right rear side of the engine compartment, mounted to the engine

Engine Electrical Component Views in Engine Electrical

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Heated Oxygen Sensor 1 (HO2S1)

The front of the engine in the exhaust manifold

Engine Controls Component Views in Engine Controls

Engine Controls Connector End Views in Engine Controls

Heated Oxygen Sensor 2 (HO2S2)

Below the vehicle after a three-way catalytic converter (TWC)

Engine Controls Component Views in Engine Controls

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Horn

The left front side of the engine compartment, behind the grille

Horn Component Views in Horns

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Idle Air Control (IAC) Valve (VIN 2)

The top of the engine, mounted to the throttle body

Engine Controls Component Views in Engine Controls

Engine Controls Connector End Views in Engine Controls

Idle Speed Control (ISC) Motor (VIN 6)

The top of the engine, mounted to the throttle body

Engine Controls Component Views in Engine Controls

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Ignition Control Module (VIN 6)

The left engine compartment on the bulkhead near the strut tower

Engine Controls Component Views in Engine Controls

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Ignition Coil (VIN 6)

The left side of the engine compartment, on the bulkhead

Engine Controls Component Views in Engine Controls

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Ignition Coil 1 (VIN 2)

On the cylinder head, over spark plug 4

Engine Controls Component Views in Engine Controls

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Ignition Coil 2 (VIN 2)

On the cylinder head, over spark plug 2

Engine Controls Component Views in Engine Controls

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Ignition Key Warning Switch

The right side of the steering column, on the ignition-switch cylinder

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Ignition Switch

The right side of the steering column

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Illumination Controller

In the IP, to the left of the steering column

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Lighting Systems Connector End Views in Lighting Systems

Inflatable Restraint Forward Discriminating Sensor

The front center of the grille, behind the hood latch assembly

SIR Component Views in SIR

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Inflatable Restraint Sensing and Diagnostic Module (SDM)

The center of the console, in front of the manual selector

SIR Component Views in SIR

SIR Connector End Views in SIR

Instrument Panel Cluster Assembly

The left side of the IP

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

Junction Block

Behind the left side of the IP

Power and Grounding Component Views

Power and Grounding Connector End Views

Lamp Driver Relay (With ABS)

Behind the left side of the IP, to the left of the steering column, near the electronic brake control module (EBCM)

Antilock Brake System Component Views in Antilock Brake System

Antilock Brake System Connector End Views in Antilock Brake System

LH Power Door Lock Switch (4-Door With Power Door Locks)

The trim panel of the left front door

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Luggage Compartment Lamp (4-Door)

The center of the luggage compartment, under the rear-window shelf

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Noise Suppressor Filter (VIN 6)

The left rear engine compartment, taped to the harness, below the ignition control module

Engine Controls Component Views in Engine Controls

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Power Door Lock Control Module (4-Door with Power Door Locks)

The left side of the IP, mounted to the A-pillar, above the left kick panel

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Powertrain Control Module (PCM)

Behind the right side of the IP, near the glove box

Engine Controls Component Views in Engine Controls

Powertrain Control Module Connector End Views in Engine Controls

Radio

Center of the IP

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Entertainment Connector End Views in Entertainment

Rear Defogger

In the rear window

Stationary Windows Component Views in Stationary Glass

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Rear Defogger Switch

In the IP, to the left of the steering column

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Stationary Windows Connector End Views in Stationary Glass

Rear Washer Pump (2-Door LSi)

The left front side of the engine compartment under the washer fluid reservoir

Wiper/Washer Component Views in Wipers/Washer Systems

Wiper/Washer Connector End Views in Wipers/Washer Systems

Rear Wiper Motor (2-Door LSi)

The center of the liftgate

Wiper/Washer Component Views in Wipers/Washer Systems

Wiper/Washer Connector End Views in Wipers/Washer Systems

Rear Wiper/Washer Switch (2-Door LSi)

In the IP, to the left of the steering column

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Wiper/Washer Connector End Views in Wipers/Washer Systems

Relay Box

The left front engine compartment, near the battery

Power and Grounding Component Views

Power and Grounding Connector End Views

RH Power Door Lock Switch (4-Door With Power Door Locks)

In the trim panel of the right front door

Power Door Systems Component Views

Power Door Systems Connector End Views

Seat Belt Switch

In the left seat belt buckle

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Audible Warnings Connector End Views in Antilock Brake Systems

Shift Lock Solenoid (Automatic Transaxle)

Near the base of the manual selector

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Starter Solenoid

The center rear of the engine, at the top of the starter motor

Engine Electrical Component Views in Engine Electrical

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Stoplamp Switch

The top of the brake pedal

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Supplemental Inflator Restraint Data Link Connector (SIR DLC)

Behind the left lP, near the junction block

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Data Link Communications Connector End Views in Data Link Communications

Transaxle Range Switch (Automatic Transaxle)

The left side of the engine compartment, mounted to the top of the transaxle

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Automatic Transmission Connector End Views in Automatic Transmission

Turn Signal/Combination Switch

On the steering column

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Lighting Systems Connector End Views in Lighting Systems

C112 (16 Cavities)

The main harness to the engine harness, on the right rear side of the engine compartment near the bulkhead

Harness Routing Views

Inline Harness Connector End Views

C113 (16 Cavities)

The main harness to the engine harness, on the right rear side of the engine compartment near the bulkhead

Harness Routing Views

Inline Harness Connector End Views

C200 (12 Cavities)

The main harness to the IP harness, behind the left IP, near the junction block

Harness Routing Views

Inline Harness Connector End Views

C204 (2 Cavities) (Manual Transaxle)

The main harness to the clutch pedal position switch, behind the left side of the IP

Harness Routing Views

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C207 (3 Cavities)

The IP harness to the dome lamp harness, on the right side of the upper cowl

Harness Routing Views

Inline Harness Connector End Views

C208 (8 Cavities)

The main harness to the IP harness, behind the left IP, near the junction block

Harness Routing Views

Inline Harness Connector End Views

C210 (5 Cavities)

The supplemental inflatable restraint (SIR) harness to the IP harness, behind the left side of the IP, near the junction block

Harness Routing Views

Inline Harness Connector End Views

C211 (6 Cavities)

The IP harness to the selector switch jumper for the blower speed , behind the center of the IP

Harness Routing Views

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C212 (6 Cavities) (4-Door)

The floor harness to the left front door, behind the left kick panel

Harness Routing Views

Inline Harness Connector End Views

C213 (6 Cavities) (4-Door)

The floor harness to the right front door, behind the right kick panel

Harness Routing Views

Inline Harness Connector End Views

C300 (2 Cavities)

The floor harness to the fuel tank jumper harness, under the rear passenger seat

Harness Routing Views

Inline Harness Connector End Views

C311 (3 Cavities)

The floor harness to the fuel tank jumper harness, under the rear passenger seat

Harness Routing Views

Inline Harness Connector End Views

C400 (10 Cavities) (4-Door)

The floor harness to the luggage-compartment harness, on the left front side of the luggage compartment near the left-rear speaker

Harness Routing Views

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C402 (6 Cavities) (2-Door)

The floor harness to the liftgate harness, at the right rear corner of the vehicle

Harness Routing Views

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G100

Mounted on top of the left side of the transaxle

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G101

The left front side of the engine compartment, in front of the battery

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G102

The left front side of the engine compartment on the left-front inner fender near the battery

Harness Routing Views

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G103

The right front side of the engine compartment on the right front side of the inner fender

Harness Routing Views

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G104

The center rear side of the engine on the intake manifold

Harness Routing Views

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G105 (VIN 6)

The center rear of the engine, on the intake manifold

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G201

Behind the left side of the kick panel

Harness Routing Views

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G202

The right side of the center IP behind the radio

Harness Routing Views

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G203

The junction-block case ground, under the left side of the IP

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G204

Behind the right side of the kick panel

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G300 (4-Door)

Behind the trim panel of the right rear quarter

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G400

The rear center of the luggage compartment

Harness Routing Views

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G401 (2-Door)

The center of the liftgate, near the rear wiper motor

Harness Routing Views

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G402 (2-Door)

The left side of the liftgate behind the trim panel

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P200

the left rear engine compartment, on the bulkhead, near the brake master cylinder

Harness Routing Views

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P202

The center of the engine compartment, on the bulkhead

Harness Routing Views

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P203

Behind the right kick panel

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P300

Below the right rear passenger seat

Harness Routing Views

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P400

The left rear side of the luggage compartment

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P401

The right rear of the luggage compartment

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P402

The center rear side of the luggage compartment

Harness Routing Views

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P403 (2-Door)

The upper right side of the liftgate

Harness Routing Views

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P500

The left front door

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P600

The right front door

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S101

The main harness, approximately 11 cm (4.5 in) from the breakout of the brake fluid level switch

Harness Routing Views

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S111 (VIN 6)

The main harness, approximately 7 cm (2.8 in) from the ignition coil breakout

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S117

The main harness, at the G103 breakout

Harness Routing Views

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S122

The main harness, at the relay box

Harness Routing Views

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S126

The engine harness, approximately 8 cm (3.1 in) from P202

Harness Routing Views

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S130

The engine harness, approximately 5 cm (2 in) from the starter breakout

Harness Routing Views

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S134

The A/C jumper harness, approximately 15 cm (6 in) from the G103 breakout

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S151

The main harness, approximately 5 cm (2 in) from the relay box

Harness Routing Views

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S152

The main harness, approximately 19 cm (7.4 in) from the C113 breakout

Harness Routing Views

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S160 (VIN 2)

The engine Harness, approximately 20 cm (8 in) from P202

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S161 (VIN 2)

The engine harness, approximately 4 cm (2 in) from the generator breakout

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S165 (VIN 2)

The engine harness, approximately 5 cm (2 in) from the starter breakout

Harness Routing Views

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S167

The engine harness, approximately 14 cm (6 in) from the C113 breakout

Harness Routing Views

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S202

The main harness, approximately 8 cm (3.125 in) from the breakout of the junction-block connector C6

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S207

The main harness, approximately 12 cm (5 in) from the G201 breakout

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S208 (With ABS)

The main harness, approximately 12 (5 in) cm from the G201 breakout

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S209

The main harness, approximately 2 cm (1 in) from the G201 breakout

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S210

The main harness, approximately 15 cm (6 in) from C208

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S213

The main harness, approximately 8 cm (3.125 in) from P200

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S215 (With ABS)

The main harness, approximately 4 cm (2 in) from the breakout of the junction-block connector C6

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S222

The IP harness, approximately 6 cm (2.375 in) from the data link connector - (DLC -OBD2) breakout

Harness Routing Views

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S224

The IP harness, approximately 5 cm (2 in) from the data link connector - (DLC -OBD2) breakout

Harness Routing Views

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S235

The IP harness, approximately 5 cm (2 in) from the C200 breakout

Harness Routing Views

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S236

The IP harness, approximately 8 cm (3.125 in) from the breakout of the IP cluster assembly connector C3

Harness Routing Views

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S237

The IP harness, approximately 10 cm (4 in) from the radio connector breakout

Harness Routing Views

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S238

The IP harness, approximately 3 cm (1.19 in) from the blower motor connector breakout

Harness Routing Views

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S239

The IP harness, approximately 11 cm (4.313 in) from the breakout of the IP cluster assembly connector C3

Harness Routing Views

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S240

The IP harness, approximately 6 cm (2.375 in) from the data link connector - (DLC-OBD 2) breakout

Harness Routing Views

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S241

The IP harness, approximately 5 cm (2 in) from the breakout of the IP cluster assembly connector C3

Harness Routing Views

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S242

The IP harness, at the breakout of the IP cluster assembly connector C3

Harness Routing Views

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S243

The IP harness, approximately 5 cm (2 in) from the cigar-lighter connector breakout

Harness Routing Views

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S244

The main harness, approximately 23 cm (9.06 in) from P200

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S245

The IP harness, approximately 12 cm (5 in) from the breakout of the IP cluster assembly connector C3

Harness Routing Views

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S247

The main harness, approximately 18 cm (7.06 in) from P200

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S254

The IP harness, approximately 6 cm (2.375 in) from the C215 breakout

Harness Routing Views

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S256

The main harness, near the breakout of the junction-block connector C6

 

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S263

The engine harness, approximately 3 cm (1.9 in) from the C205 breakout

Harness Routing Views

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S301 (2-Door)

The floor harness, approximately 20 cm (8 in) from the center-console branch breakout

Harness Routing Views

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S314 (4-Door With Power Door Locks)

The floor harness, approximately 25 cm (10 in) from the C201 breakout

Harness Routing Views

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S315

The fuel tank jumper harness, approximately 10 cm (4 in) from P300

Harness Routing Views

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S402 (2-Door)

The floor harness, approximately 5 cm (2 in) from the connector breakout of the left rear combination lamp

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S403 (2-Door)

The floor harness, approximately 5 cm (2 in) from the G400 breakout

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S406 (4-Door)

The floor harness, approximately 10 cm (4 in) from the connector breakout of the left rear combination lamp

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S407 (4-Door)

The floor harness, approximately 20 cm (8 in) from the connector breakout of the left rear combination lamp

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S408 (4-Door)

The floor harness, approximately 5 cm (2 in) from the C400 breakout

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