GM Service Manual Online
For 1990-2009 cars only

Component

Location

Locator View

Connector End View

Automatic Transaxle

On the lower rear of the engine

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Automatic Transmission Inline Harness Connector End View in Transmission Transaxle

Camshaft Position (CMP) Sensor

On the top front of the engine

Engine Controls Component Views

Engine Controls Connector End Views

Cooling Fan Motor

In the front of the engine compartment

Engine Controls Component Views

Engine Controls Connector End Views

Crankshaft Position (CKP) Sensor

In the lower front of the engine

Engine Controls Component Views

Engine Controls Connector End Views

Cruise Control Brake Switch

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

Cruise Control Component Views in Cruise Control

Cruise Control Connector End Views in Cruise Control

Cruise Control Module

In the back center of the engine compartment

Engine Controls Component Views

Engine Controls Connector End Views

Data Link Connector (DLC)

On the left side of the IP

Data Link Communications Component Views in Data Link Communications

Data Link Communications Connector End Views in Data Link Communications

Engine Coolant Level Switch

The right side of the engine compartment in the surge tank

Engine Controls Component Views

Engine Controls Connector End Views

Engine Coolant Temperature (ECT) Sensor

On the top rear of the engine

Engine Controls Component Views

Engine Controls Connector End Views

Engine Oil Pressure Sensor

On the top rear of the engine

Engine Controls Component Views

Engine Controls Connector End Views

Evaporative Emission Canister Purge Valve

On the lower front of the engine

Engine Controls Component Views

Engine Controls Connector End Views

Evaporative Emission Canister Vent Solenoid

Under the rear of the vehicle

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Engine Controls Connector End Views

Fuel Injectors

On the top front of the engine

Engine Controls Component Views

Engine Controls Connector End Views

Fuel Pump Relay

In the Underhood Fuse/Relay Center

Electrical Center Identification Views in Wiring Systems

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Fuel Tank Module

Under the rear of the vehicle

Engine Controls Component Views

Engine Controls Connector End Views

Fuel Tank Pressure Sensor

Under the rear of the vehicle

Engine Controls Component Views

Engine Controls Connector End Views

Fuse Block

On the LH end of IP

Electrical Center Identification Views in Wiring Systems

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Generator

On the lower front of the engine

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Engine Controls Connector End Views

Idle Air Control (IAC) Valve

On the top of the engine on the throttle body

Engine Controls Component Views

Engine Controls Connector End Views

Ignition Coils

On the center of engine under cover plate

Engine Controls Component Views

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Ignition Control Module

On the top of the engine under cover plate

Engine Controls Component Views

Engine Controls Connector End Views

Instrument Cluster

On the left side of the 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

On the top left side of the engine compartment in the air induction tube

Engine Controls Component Views

Engine Controls Connector End Views

Knock Sensor

On the lower left side of the engine

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Engine Controls Connector End Views

Manifold Absolute Pressure (MAP) Sensor

On the top front of the engine near the throttle body

Engine Controls Component Views

Engine Controls Connector End Views

Post Converter Heated Oxygen Sensor (HO2S  2)

In exhaust stream, after catalyst

Engine Controls Component Views

Engine Controls Connector End Views

Powertrain Control Module (PCM)

Inside of the RF fender, behind fascia

Engine Controls Component Views

Powertrain Control Module Connector End Views

Pre Converter Oxygen Sensor (O2S 1)

In the exhaust manifold

Engine Controls Component Views

Engine Controls Connector End Views

Throttle Position (TP) Sensor

On the top front of the engine, on throttle body

Engine Controls Component Views

Engine Controls Connector End Views

Park/Neutral Position Switch

On the top of the transaxle

Engine Controls Component Views

Engine Controls Connector End Views

Underhood Fuse/Relay Center

In the left side of the engine compartment

Electrical Center Identification Views in Wiring Systems

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Vehicle Speed Sensor (VSS)

At the RH rear of the engine/transaxle

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Engine Controls Connector End Views

C100

On the left rear side of the engine compartment

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C200 (18 cavity)

Below the left side of the IP, near the BCM

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C313 (16 cavity)

Under the rear of the vehicle

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G102

In the LH front of the engine compartment under battery tray

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G103

In the LH front of the engine compartment under battery tray

Harness Routing Views in Wiring Systems

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G201

On the steering column support bracket

Harness Routing Views in Wiring Systems

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G301

(Convertable Only)

On the left side of the passenger compartment

Harness Routing Views in Wiring Systems

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P100

In the LH rear of the engine compartment

Harness Routing Views in Wiring Systems

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P200

In the LH rear of the engine compartment

Harness Routing Views in Wiring Systems

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S101

In the injector harness, approximately 16 cm (6.3 in) from C130, towards the injectors

Harness Routing Views in Wiring Systems

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S102

In the engine harness, approximately 15 cm (5.9 in) from P100, towards the PCM

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S103

In the engine harness, approximately 15 cm (5.9 in) from P100, towards the PCM

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S104

In the engine harness, approximately 15 cm (5.9 in) from P100, towards the PCM

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S105

In the engine harness, approximately 15 cm (5.9 in) from P100, towards the PCM

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