GM Service Manual Online
For 1990-2009 cars only

Component

Location

Locator View

Connector End View

A/C Compressor Clutch

On the RH front of engine

Engine Controls Component Views

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A/C Compressor Clutch Diode

In the engine harness approximately 21 cm (8 in) from the A/C compressor clutch connector

Engine Controls Component Views

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A/C Compressor Clutch Relay

In the LH front of engine compartment

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A/C Refrigerant Pressure Sensor

In the RH front of engine compartment

Engine Controls Component Views

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Automatic Transmision

In the LH front of engine/transmission

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Automatic Transmission Inline Harness Connector End View in Transmission Transaxle

Brake Switch

On the LH lower IP below steering column

Cruise Control Component Views in Cruise Control

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Camshaft Position (CMP) Sensor

On the rear center of engine

Engine Controls Component Views

Engine Controls Connector End Views

Convenience Center

In the RH front of passenger compartment

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Coolant Fan Motor

In the front center of engine compartment

Engine Controls Component Views

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Coolant Fan Relay

In the LH front of engine compartment

Engine Controls Component Views

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Crankshaft Position (CKP) Sensor

On the rear center of engine

Engine Controls Component Views

Engine Controls Connector End Views

Cruise Control Brake Switch

On the LH lower IP below steering column

Cruise Control Component Views in Cruise Control

Cruise Control Connector End Views in Cruise Control

Cruise Control Module

In the RH rear of engine compartment

Cruise Control Component Views in Cruise Control

Cruise Control Connector End Views in Cruise Control

Data Link Connector (DLC)

On the LH lower IP tie bar

Data Link Communications Component Views in Wiring Systems

Data Link Communications Connector End Views in Wiring Systems

Underhood Fuse/Relay Center

In the LH front of engine compartment

Electrical Center Identification Views in Wiring Systems

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Engine Coolant Level Switch

In the RH side of engine compartment

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Engine Controls Connector End Views

Engine Coolant Temperature (ECT) Sensor

On the RH top of engine

Engine Controls Component Views

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Engine Oil Pressure Sensor

On the Rear center of engine

Engine Controls Component Views

Engine Controls Connector End Views

Evaporative Emission Canister Purge Valve

On the RH front of engine

Engine Controls Component Views

Engine Controls Connector End Views

Evaporative Emission Canister Vent Solenoid

Under the rear of the vehicle

Engine Controls Component Views

Engine Controls Connector End Views

Fuel Injectors

On the top front of engine

Engine Controls Component Views

Engine Controls Connector End Views

Fuel Pump Relay

In the LH front of engine compartment

Engine Controls Component Views

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Fuel Tank Module

On the lower rear of car

Engine Controls Component Views

Engine Controls Connector End Views

Fuel Tank Pressure Sensor

On the fuel tank

Engine Controls Component Views

Engine Controls Connector End Views

Fuse Block

On the LH end of IP tie bar

Electrical Center Identification Views in Wiring Systems

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Generator

On the RH front engine

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Idle Air Control (IAC) Valve

On the front of throttle body

Engine Controls Component Views

Engine Controls Connector End Views

Ignition Control (IC) Module

On the LH top of engine

Engine Controls Component Views

Engine Controls Connector End Views

Instrument Panel Cluster

On the LH IP

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

Intake Air Temperature (IAT) Sensor

In the LH front of engine compartment

Engine Controls Component Views

Engine Controls Connector End Views

Knock Sensor (KS)

On the rear center of engine

Engine Controls Component Views

Engine Controls Connector End Views

Manifold Absolute Pressure (MAP) Sensor

On the LH side of throttle body

Engine Controls Component Views

Engine Controls Connector End Views

Multi-function Alarm Module

In the RH front of passenger compartment

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Post Converter Heated Oxygen Sensor

On the catalytic converter

Engine Controls Component Views

Engine Controls Connector End Views

Powertrain Control Module (PCM)

In the RH front corner behind fascia

Engine Controls Component Views

Powertrain Control Module Connector End Views

Pre-Converter Oxygen Sensor

On the front of engine

Engine Controls Component Views

Engine Controls Connector End Views

Throttle Position (TP) Sensor

On the LH top of throttle body

Engine Controls Component Views

Engine Controls Connector End Views

Park/Neutral Position Switch

In the LH rear of engine compartment

Engine Controls Component Views

Engine Controls Connector End Views

Vehicle Speed Sensor (automatic)

On the rear of transmission

Engine Controls Component Views

Engine Controls Connector End Views

C100 (38 cavities)

In the LH rear side of engine compartment

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C200 (23 cavities)

In the LH front of passenger compartment

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C220 (6 cavities)

In the LH front of passenger compartment

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C313 (16 cavities)

On the fuel tank

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G110

On the LH engine/transmission

Harness Routing Views in Wiring Systems

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G112

On the LH engine/transmission

Harness Routing Views in Wiring Systems

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G204

On the Steering column support bracket

Harness Routing Views in Wiring Systems

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G304

In the LH front of passenger compartment

Harness Routing Views in Wiring Systems

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P201

On the LH lower IP below steering column

Harness Routing Views in Wiring Systems

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S101

In the engine harness, front of engine, approximately 33 cm (13 in) from the coolant fan connector

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S107

In the engine harness, front left side of car, approximately 34 cm (13 in) from the engine compartment fuse/relay center

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S110

In the engine harness, front of engine harness, approximately 20 cm (8 in) from the A/C compressor clutch connector

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S111

In the engine harness, front of engine, approximately 20 cm (8 in) from the A/C compressor clutch connector

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S121

In the engine harness, front of engine, approximately 27 cm (11 in) from C100

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S171

In the engine harness, approximately 54.5 cm (21.5 in) from C100

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S205

In the dash harness, approximately 51 cm (20 in) from P201, toward the instrument cluster connectors

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S209

In the dash harness, approximately 71 cm (28 in) from P201, toward the data link connector

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S214

In the dash harness, approximately 18 cm (7 in) from the electronic brake control module connector C2

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S217

In the dash harness, approximately 43 cm (17 in) from P201, toward the instrument cluster connectors

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S221

In the dash harness, approximately 59 cm (23 in) from P201, toward the passenger inflator module connector

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S242

In the dash harness, approximately 84 cm (33 in) from P201, toward the data link connector

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S277

In the dash harness, approximately 77.5 cm (30.5 in) from P201, toward the data link connector

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S330

In the body harness, approximately 143 cm (56 in) from the LH tail/stop lamp connector forward

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S331

In the body harness, approximately 113 cm (45 in) from P600 rearward

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S332

In the body harness approximately 147 cm (58 in) from P500 rearward

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