GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Battery

Right hand front of the engine compartment, near the engine coolant surge tank

Engine Electrical Component Views

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Generator

Right hand front corner of the engine, near the battery

Engine Electrical Component Views

Engine Electrical Connector End Views

Ignition Switch

Under the left hand of the instrument panel, on the base of the steering column

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Instrument Cluster

Left hand of the instrument panel, above the steering column

--

--

Park/Neutral Position (PNP) Switch

Left hand of the transaxle, below the throttle body

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Engine Controls Connector End Views

Powertrain Control Module (PCM)

Left hand front corner of the engine compartment, under the air cleaner housing

Engine Controls Component Views

Powertrain Control Module Connector End Views

RH Maxifuse® Block

Left hand of the engine compartment, near the engine compartment fuse/relay center

Engine Electrical Component Views

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Starter Enable Relay

Left hand of the engine compartment, near the right hand maxifuse® Block

Engine Electrical Component Views

Engine Electrical Connector End Views

Starter Motor

Center of engine under intake manifold

Engine Electrical Component Views

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Starter Solenoid

Center of engine under intake manifold, on starter motor

Engine Electrical Component Views

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C101 (23 cavities)

Body harness to the engine harness, left hand of the engine compartment near the engine compartment fuse/relay center

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C131 (2 cavities)

Engine harness to the starter harness, right hand rear corner of the engine

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C202 (48 cavities)

Body harness to the steering column harness, under the left hand of the instrument panel, near the steering column

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G100

Right hand front corner of the engine compartment, on the radiator support

Power and Grounding Component Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G105

Right hand front corner of the engine, near the generator

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

P101

Left hand rear of the engine compartment, near the strut tower

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

S121

In the engine harness, approx 32.5 cm from the starter enable relay

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems