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 In HVAC System - Manual

HVAC Connector End Views In HVAC System - Manual

Blower Speed Selector Switch

Center of IP, above radio

Heater Blower Controls Component Views In Heating, Ventilation, and Air Conditioning

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Clutch Pedal Position (CPP) Switch (Manual Transaxle)

Mounted above the clutch pedal

Engine Electrical Component Views In Engine Electrical

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Crankshaft Position Sensor

Bottom of the engine, mounted to the engine near the crankshaft pulley

Engine Controls Component Views

Engine Controls Connector End Views

Data Link Connector (DLC) OBD 2

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

Data Link Communications Component Views In Wiring Systems

Data Link Communications Connector End Views In Wiring Systems

Diode Module

Behind the center IP, taped to the IP harness

Lighting Systems Component Views In Lighting Systems

Engine Controls Connector End ViewsIn Lighting Systems

Distributor

Left side of the engine

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Duty Check Data Link Connector

Passenger compartment, taped to the harness behind the IP compartment

Data Link Communications Component Views In Wiring Systems

Data Link Communications Connector End Views In Wiring Systems

Early Fuel Evaporation (EFE) Heater

Mounted between the intake manifold and the throttle body

Engine Controls Component Views

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Engine Coolant Temperature (ECT) Sensor

Left side of the engine, mounted in thermostat housing

Engine Controls Component Views

Engine Controls Connector End Views

Engine Cooling Fan Motor

Left front side of the engine compartment, behind the radiator

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Engine Controls Connector End Views

EVAP Canister Purge Valve

Center engine compartment, on the intake manifold

Engine Controls Component Views

Engine Controls Connector End Views

EVAP Canister Vent Solenoid (without ORVR)

Center of engine bulkhead

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Engine Controls Connector End Views

EVAP Canister Vent Solenoid (with ORVR)

Top of the fuel tank

Engine Controls Component Views

Engine Controls Connector End Views

EVAP Tank Pressure Control Solenoid Valve (Without ORVR)

On engine bulkhead, next to EVAP canister

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Engine Controls Connector End Views

EVAP Tank Pressure Control Solenoid Valve (With ORVR)

Top of the fuel tank

Engine Controls Component Views

Engine Controls Connector End Views

Exhaust Gas Recirculation Vacuum Solenoid (EGR SV) Valve

Left side of the engine, next to the intake manifold

Engine Controls Component Views

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Exhaust Gas Recirculation (EGR) Bypass Valve

Left side of the engine, next to the intake manifold

Engine Controls Component Views

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Fuel Injector

In the engine throttle body

Engine Controls Component Views

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Fuel Injector Resistor

Left rear side of the engine compartment, attached to the bulkhead

Engine Controls Component Views

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Fuel Sender Assembly

In the fuel tank

Engine Controls Component Views

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

Fuel Tank Pressure Sensor

In the fuel tank

Engine Controls Component Views

Engine Controls 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 In Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

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

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Idle Speed Control (ISC) Motor

Top of engine, mounted to the throttle body

Engine Controls Component Views

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Ignition Control Module

Left engine compartment on the bulkhead near the strut tower

Engine Controls Component Views

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Ignition Coil

Left side of the engine compartment, on the bulkhead

Engine Controls Component Views

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Ignition Switch

Right side of the steering column

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Instrument Panel Cluster Assembly

Left side of the IP

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

Intake Air Temperature (IAT) Sensor

Center engine compartment attached to air cleaner (ACL) housing

Engine Controls Component Views

Engine Controls Connector End Views

Junction Block

Behind left side of the IP

Power and Grounding Component Views In Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Manifold Absolute Pressure (MAP) Sensor

Right rear engine compartment, on the bulkhead

Engine Controls Component Views

Engine Controls Connector End Views

Noise Suppressor Filter

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

Engine Controls Component Views

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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

Rear Defogger Switch

In the IP, left of steering column

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Stationary Windows Connector End Views In Stationary Windows

Relay Box

Left front engine compartment, near the battery

Power and Grounding Component Views In Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Throttle Position (TP) Sensor

Right rear side of the engine, attached to the throttle body

Engine Controls Component Views

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Turn Signal/Combination Switch

On steering column

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Lighting Systems Connector End Views In Lighting Systems

Vehicle Speed Sensor (VSS) (Automatic Transaxle)

Left side of the engine compartment, top of the transaxle

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C112 (16 Cavities)

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

Harness Routing Views In Wiring Systems

Inline Harness Connector End Views In Wiring Systems

C113 (16 Cavities)

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

Harness Routing Views In Wiring Systems

Inline Harness Connector End Views In Wiring Systems

C200 (12 Cavities)

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

Harness Routing Views In Wiring Systems

Inline Harness Connector End Views In Wiring Systems

C201 (14 Cavities)

Main harness to the floor harness, behind the left side of the IP, near junction block

Harness Routing Views In Wiring Systems

Inline Harness Connector End Views In Wiring Systems

C203 (13 Cavities)

I/P harness to floor harness, behind left side of the IP, near junction block

Harness Routing Views In Wiring Systems

Inline Harness Connector End Views In Wiring Systems

C204 (2 Cavities) (Manual Transaxle)

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

Harness Routing Views In Wiring Systems

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C205 (12 Cavities)

IP harness to engine harness, behind the right side of the IP, near the powertrain control module (PCM)

Harness Routing Views In Wiring Systems

Inline Harness Connector End Views In Wiring Systems

C208 (8 Cavities)

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

Harness Routing Views In Wiring Systems

Inline Harness Connector End Views In Wiring Systems

C211 (6 Cavities)

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

Harness Routing Views In Wiring Systems

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C300 (2 Cavities)

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

Harness Routing Views In Wiring Systems

Inline Harness Connector End Views In Wiring Systems

C310 (4 Cavities)

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

Harness Routing Views In Wiring Systems

Inline Harness Connector End Views In Wiring Systems

C311 (3 Cavities)

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

Harness Routing Views In Wiring Systems

Inline Harness Connector End Views In Wiring Systems

G102

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

Harness Routing Views In Wiring Systems

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G104

Center rear side of the engine on the intake manifold

Harness Routing Views In Wiring Systems

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G105 (VIN 6)

Center rear of engine, on the intake manifold

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G203

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

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G400 (2-Door)

Rear center of luggage compartment

Harness Routing Views In Wiring Systems

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G400 (4-Door)

Rear center of luggage compartment

Harness Routing Views In Wiring Systems

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P200

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

Harness Routing Views In Wiring Systems

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P202

Center of the engine compartment, on the bulkhead

Harness Routing Views In Wiring Systems

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P300

Below the right rear passenger seat

Harness Routing Views In Wiring Systems

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S101

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

Harness Routing Views In Wiring Systems

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S110

Main harness, approximately 5 cm (2 in) from the ignition control module connector breakout

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S111 (VIN 6)

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

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S118 (VIN 6)

Main harness, approximately 28 cm (11.5 in) from the front wiper motor connector breakout

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S119

Main harness, approximately 50 cm (20 in) from the front wiper motor connector breakout

Harness Routing Views In Wiring Systems

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S120 (VIN 6)

Main harness, approximately 6 cm (2.4 in) from the ignition coil connector breakout

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S126

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

Harness Routing Views In Wiring Systems

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S127 (Manual Transaxle)

Engine harness, at the generator breakout

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S127 (Automatic Transaxle)

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

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S129 (VIN 6)

Engine harness, approximately 14 cm (5.6 in) from the TP sensor breakout

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S129 (VIN 2)

Engine harness, approximately 2 cm (1 in) from the C113 breakout

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S130

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

Harness Routing Views In Wiring Systems

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S131

Engine harness, approximately 9 cm (3.6 in) from the generator connector breakout

Harness Routing Views In Wiring Systems

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S148

Main harness, approximately 23 cm (9.2 in) from the MAP sensor connector breakout

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S151

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

Harness Routing Views In Wiring Systems

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S152

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

Harness Routing Views In Wiring Systems

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S153

Main harness, approximately 13 cm (5.125 in) from the front wiper motor connector breakout

Harness Routing Views In Wiring Systems

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S156

Engine harness, approximately 7 cm (3 in) from P202

Harness Routing Views In Wiring Systems

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S167

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

Harness Routing Views In Wiring Systems

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S168 (VIN 6)

Engine harness, approximately 4 cm (2 in) from the C113 breakout

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S169 (VIN 6)

Engine harness, approximately 4 cm (2 in) from the EGR SV valve breakout

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S170 (VIN 6)

Engine harness, approximately 11 cm (4.3 in) from P202

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S200 (VIN 6)

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

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S202

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

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S204

Main harness, approximately 8 cm (3.125 in) from the junction block connector C5 breakout

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S218

IP harness, approximately 3 cm (1.19 in) from the IP custer assembly connector C3 breakout

Harness Routing Views In Wiring Systems

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S221

IP harness, approximately 7 cm (3 in) from the IP cluster assembly connector C2 breakout

Harness Routing Views In Wiring Systems

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S222

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

Harness Routing Views In Wiring Systems

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S225

I/P harness, approximately 2 cm (1 in) from the C200 breakout

Harness Routing Views In Wiring Systems

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S226

IP harness, approximately 3 cm (1.19 in)from the IP cluster assembly connector C3 breakout

Harness Routing Views In Wiring Systems

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S231

Main harness, approximately 15 (6 in) cm from P200

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S232

IP harness, approximately 4 cm (2 in) from the C205 breakout

Harness Routing Views In Wiring Systems

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S233

IP harness, approximately 8 cm (3.125 in) from the blower motor branch breakout

Harness Routing Views In Wiring Systems

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S234

IP harness, approximately 1 cm (.375 in) from the diode module connector breakout

Harness Routing Views In Wiring Systems

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S235

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

Harness Routing Views In Wiring Systems

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S236

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

Harness Routing Views In Wiring Systems

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S237

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

Harness Routing Views In Wiring Systems

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S240

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

Harness Routing Views In Wiring Systems

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S241

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

Harness Routing Views In Wiring Systems

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S242

IP harness, at the IP cluster assembly connector C3 breakout

Harness Routing Views In Wiring Systems

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S245

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

Harness Routing Views In Wiring Systems

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S248

Engine harness, approximately 4 cm (2 in) from the powertrain control module (PCM) connector C1 breakout

Harness Routing Views In Wiring Systems

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S252

IP harness, approximately 4 cm (2 in) from the data link connector - (DLC-OBD 2) breakout

Harness Routing Views In Wiring Systems

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S256

Main harness, near the junction block connector C6 breakout

 

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S257 (VIN 6)

Engine harness, approximately 5 cm (2 in) from P202

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S261 (Manual Transaxle)

Engine harness, approximately 4 cm (2 in) from PCM connectors breakout

Harness Routing Views In Wiring Systems

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S262

Engine harness, approximately 5 cm (2 in) from P202

Harness Routing Views In Wiring Systems

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S263

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

Harness Routing Views In Wiring Systems

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S315

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

Harness Routing Views In Wiring Systems

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