GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

A/C Compressor Control Module

Below right side of the IP, attached to evaporator case

HVAC Component Views

HVAC Connector End Views

A/C Condenser Fan Motor

Right side of grille, front of A/C condenser

HVAC Component Views

--

A/C Refrigerant (Dual) Pressure Switch

Right rear side of the engine compartment, near the strut tower

--

--

A/C Switch

Center of IP, above radio

--

HVAC Connector End Views

Audio Alarm Module

Left side of the lower IP, left of Steering column

Audible Warnings Component Views

Audible Warnings Connector End Views

Backup Lamp Switch (Manual Transaxle)

Left side of the engine compartment, top of transaxle

Lighting Systems Component Views

Lighting Systems Connector End Views

Battery

Left side of engine compartment

Power and Grounding Component Views

--

Blower Motor

Behind the right side of the IP

Heater Blower Controls Component Views

Heater Blower Controls Connector End Views

Blower Speed Selector Switch

Center of IP, above radio

Heater Blower Controls Component Views

--

Brake Fluid Level Switch

In the brake fluid reservoir

--

Hydraulic Brakes Connector End Views

Camshaft Position Sensor (VIN 2)

Cylinder head, near the ignition coil 2

Engine Controls Component Views

--

Center High-Mounted Stoplamp (CHMSL)

Bottom of rear window

--

Lighting Systems Connector End Views

Cigar Lighter

Center of IP, below radio

--

Power and Grounding Connector End Views

Clutch Pedal Position (CPP) Switch (Manual Transaxle)

Mounted above the clutch pedal

Engine Electrical Component Views

--

Data Link Connector (DLC) OBD 2

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

Data Link Communications Component Views

Data Link Communications Connector End Views

Daytime Running Lamps (DRL) Control Module

Behind the left side of the IP

Lighting Systems Component Views

Lighting Systems Connector End Views

Duty Check Data Link Connector

Passenger compartment, taped to the harness behind the IP compartment

Data Link Communications Component Views

Data Link Communications Connector End Views

Early Fuel Evaporation (EFE) Heater (VIN 6)

Mounted between the intake manifold and the throttle body

Engine Controls Component Views

--

Electronic Brake Control Module (EBCM) (With ABS)

Behind the left IP, above the junction block

Antilock Brake System Component Views

Antilock Brakes System Connector End Views

Engine Cooling Fan Motor

Left front side of the engine compartment, behind the radiator

--

Cooling System Connector End Views

Front Washer Pump

Left front side of the engine compartment, under the washer fluid reservoir

Wiper/Washer Component Views

Wiper/Washer Connector End Views

Front Wiper Motor

Right rear side of the engine compartment, against the bulkhead

Wiper/Washer Component Views

Wiper/Washer Connector End Views

Fuel Sender Assembly

In the fuel tank

Engine Controls Component Views

Instrument Panel, Gages, and Console Connector End Views

Fuse Box

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

Power and Grounding Component Views

Power and Grounding Connector End Views

Generator

Right rear side of the engine compartment, mounted to the engine

Engine Electrical Component Views

--

Heated Oxygen Sensor 1 (HO2S1)

Front of the engine in the exhaust manifold

Engine Controls Component Views

Engine Controls Connector End Views

Heated Oxygen Sensor 2 (HO2S2)

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

Engine Controls Component Views

--

Horn

Left front side of the engine compartment, behind the grille

Horn Component Views

--

Idle Air Control (IAC) Valve (VIN 2)

Top of engine, mounted to the throttle body

Engine Controls Component Views

Engine Controls Connector End Views

Idle Speed Control (ISC) Motor (VIN 6)

Top of engine, mounted to the throttle body

Engine Controls Component Views

--

Ignition Control Module (VIN 6)

Left engine compartment on the bulkhead near the strut tower

Engine Controls Component Views

--

Ignition Coil (VIN 6)

Left side of the engine compartment, on the bulkhead

Engine Controls Component Views

--

Ignition Coil 1 (VIN 2)

On the cylinder head, over spark plug 4

Engine Controls Component Views

--

Ignition Coil 2 (VIN 2)

On the cylinder head, over spark plug 2

Engine Controls Component Views

--

Ignition Key Warning Switch

Right side of the steering column, on the ignition switch cylinder

--

--

Ignition Switch

Right side of the steering column

--

--

Illumination Controller

In the IP, left of the steering column

--

Lighting Systems Connector End Views

Inflatable Restraint Forward Discriminating Sensor

Front center of the grille, behind the hood latch assembly

SIR Component Views

--

Inflatable Restraint Sensing and Diagnostic Module (SDM)

Center of the console, in front of the manual selector

SIR Component Views

SIR Connector End Views

Instrument Panel Cluster Assembly

Left side of the IP

--

Instrument Panel, Gages, and Console Connector End Views

Junction Block

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

Antilock Brake System Component Views

Antilock Brakes System Connector End Views

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

Left front door trim panel

Power Door Systems Component Views

Power Door Systems Connector End Views

Luggage Compartment Lamp (4-Door)

Center of the luggage compartment, under rear window shelf

Lighting Systems Component Views

Lighting Systems Connector End Views

Noise Suppressor Filter (VIN 6)

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

Engine Controls Component Views

--

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

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

Power Door Systems Component Views

Power Door Systems Connector End Views

Powertrain Control Module (PCM)

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

Engine Controls Component Views

Powertrain Control Module Connector End Views in Engine Controls - 1.3L or Powertrain Control Module Connector End Views in Engine Controls - 1.0L.

Radio

Center of the IP

--

Entertainment Connector End Views

Rear Defogger

In the rear window

Stationary Windows Component Views

--

Rear Defogger Switch

In the IP, left of steering column

--

Stationary Windows Connector End Views

Rear Washer Pump (2-Door LSi)

Left front side of the engine compartment under washer fluid reservoir

Wiper/Washer Component Views

Wiper/Washer Connector End Views

Rear Wiper Motor (2-Door LSi)

Center of the liftgate

Wiper/Washer Component Views

Wiper/Washer Connector End Views

Rear Wiper/Washer Switch (2-Door LSi)

In IP, left of the steering column

--

Wiper/Washer Connector End Views

Relay Box

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 right front door trim panel

Power Door Systems Component Views

Power Door Systems Connector End Views

Seat Belt Switch

In left seat belt buckle

--

Audible Warnings Connector End Views

Shift Lock Solenoid (Automatic Transaxle)

Near base of manual selector

--

--

Starter Solenoid

Center rear of engine, top of the starter motor

Engine Electrical Component Views

--

Stoplamp Switch

Top of brake pedal

Lighting Systems Component Views

Lighting Systems Connector End Views

Supplemental Inflator Restraint Data Link Connector (SIR DLC)

Behind the left lP near the junction block

--

Data Link Communications Connector End Views

Transaxle Range Switch (Automatic Transaxle)

Left side of the engine compartment, mounted to top of the transaxle

--

Automatic Transmission Connector End Views

Turn Signal/Combination Switch

On steering column

--

Lighting Systems Connector End Views

C112 (16 Cavities)

Main harness to engine harness, right rear side of the engine compartment near bulkhead

Harness Routing Views

Inline Harness Connector End Views

C113 (16 Cavities)

Main harness to engine harness, right rear side of the engine compartment near the bulkhead

Harness Routing Views

Inline Harness Connector End Views

C200 (12 Cavities)

Main harness to the IP harness, behind the left IP, near junction block

Harness Routing Views

Inline Harness Connector End Views

C204 (2 Cavities) (Manual Transaxle)

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

Harness Routing Views

--

C207 (3 Cavities)

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

Harness Routing Views

Inline Harness Connector End Views

C208 (8 Cavities)

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)

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)

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

Harness Routing Views

--

C212 (6 Cavities) (4-Door)

Floor harness to left front door, behind the left kick panel

Harness Routing Views

Inline Harness Connector End Views

C213 (6 Cavities) (4-Door)

Floor harness to right front door, behind right kick panel

Harness Routing Views

Inline Harness Connector End Views

C300 (2 Cavities)

Floor harness to fuel tank jumper harness, under the rear passenger seat

Harness Routing Views

Inline Harness Connector End Views

C311 (3 Cavities)

Floor harness to fuel tank jumper harness, under the rear passenger seat

Harness Routing Views

Inline Harness Connector End Views

C400 (10 Cavities) (4-Door)

Floor harness to luggage compartment harness, left front side of luggage compartment near the left rear speaker

Harness Routing Views

--

C402 (6 Cavities) (2-Door)

Floor harness to liftgate harness, right rear corner of vehicle

Harness Routing Views

--

G100

Mounted on top of the left side of the transaxle

--

--

G101

Left front side of the engine compartment, front of the battery

--

--

G102

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

Harness Routing Views

--

G103

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

Harness Routing Views

--

G104

Center rear side of the engine on the intake manifold

Harness Routing Views

--

G105 (VIN 6)

Center rear of engine, on the intake manifold

--

--

G201

Behind the left side of the kick panel

Harness Routing Views

--

G202

Right side of the center IP behind the radio

Harness Routing Views

--

G203

Junction block case ground, under the left side of the IP

--

--

G204

Behind right side of the kick panel

--

--

G300 (4-Door)

Behind the right rear quarter trim panel

--

--

G400

Rear center of luggage compartment

--

--

G401 (2-Door)

Center of the liftgate, near rear wiper motor

Harness Routing Views

--

G402 (2-Door)

Left side of the liftgate behind trim panel

--

--

P200

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

Harness Routing Views

--

P202

Center of the engine compartment, on the bulkhead

Harness Routing Views

--

P203

Behind the right kick panel

--

--

P300

Below the right rear passenger seat

Harness Routing Views

--

P400

Left rear side of the luggage compartment

--

--

P401

Right rear of luggage compartment

--

--

P402

Center rear side of the luggage compartment

Harness Routing Views

--

P403 (2-Door)

Upper right side of the liftgate

Harness Routing Views

--

P500

Left front door

--

--

P600

Right front door

--

--

S101

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

Harness Routing Views

--

S111 (VIN 6)

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

--

--

S117

Main harness, at the G103 breakout

Harness Routing Views

--

S122

Main harness, at relay box

Harness Routing Views

--

S126

Engine harness, approximately 8 cm (3.1 in) from P202

Harness Routing Views

--

S130

Engine harness, approximately 5 cm (2 in) from starter breakout

Harness Routing Views

--

S134

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

--

--

S151

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

Harness Routing Views

--

S152

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

Harness Routing Views

--

S160 (VIN 2)

Engine Harness, approximately 20 cm (8 in) from P202

--

--

S161 (VIN 2)

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

--

--

S165 (VIN 2)

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

Harness Routing Views

--

S167

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

Harness Routing Views

--

S202

Main harness, approximately 8 cm (3.125 in) from the junction block connector C6 breakout

--

--

S207

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

--

--

S208 (With ABS)

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

--

--

S209

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

--

--

S210

Main harness, approximately 15 cm (6 in) from C208

--

--

S213

Main harness, approximately 8 cm (3.125 in) from P200

--

--

S215 (With ABS)

Main harness, approximately 4 cm (2 in) from the junction block connector C6 breakout

--

--

S222

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

Harness Routing Views

--

S224

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

Harness Routing Views

--

S235

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

Harness Routing Views

--

S236

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

Harness Routing Views

--

S237

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

Harness Routing Views

--

S238

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

Harness Routing Views

--

S239

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

Harness Routing Views

--

S240

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

Harness Routing Views

--

S241

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

Harness Routing Views

--

S242

IP harness, at the IP cluster assembly connector C3 breakout

Harness Routing Views

--

S243

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

Harness Routing Views

--

S244

Main harness, approximately 23 cm (9.06 in) from P200

--

--

S245

IP harness, approximately 12 cm (5 in) from the I/P cluster assembly connector C3 breakout

Harness Routing Views

--

S247

Main harness, approximately 18 cm (7.06 in) from P200

--

--

S254

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

Harness Routing Views

--

S256

Main harness, near the junction block connector C6 breakout

 

--

S263

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

Harness Routing Views

--

S301 (2-Door)

Floor harness, approximately 20 cm (8 in) from the center console branch breakout

Harness Routing Views

--

S314 (4-Door With Power Door Locks)

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

Harness Routing Views

--

S315

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

Harness Routing Views

--

S402 (2-Door)

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

--

--

S403 (2-Door)

Floor Harness, approximately 5 cm (2 in) from G400 breakout

--

--

S406 (4-Door)

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

--

--

S407 (4-Door)

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

--

--

S408 (4-Door)

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

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