GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Battery Cable Junction Block

On the front left side of the engine

Engine Electrical Component Views

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Battery, LH

At the left front of the engine compartment

Engine Electrical Component Views

Engine Electrical Connector End Views

Battery, RH

At the right rear of the engine compartment

Engine Electrical Component Views

Engine Electrical Connector End Views

Clutch Pedal Position (CPP) Switch

On the top of the clutch pedal assembly near the reservoir

Engine Electrical Component Views

Engine Electrical Connector End Views

Generator

On 4.3L - On the right front of the engine

Engine Electrical Component Views

Engine Electrical Connector End Views

Generator

On 4.8L, 5.3L, 6.0L - On the left front of the engine

Engine Electrical Component Views

Engine Electrical Connector End Views

Ignition Switch

Part of the steering column

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Power and Grounding Connector End Views in Wiring Systems

Instrument Cluster

On the left side of the IP above the steering column

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

Left Bussed Electrical Center (LBEC)

On the lower left side of the IP

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Mid Bussed Electrical Center (MBEC)

Under the left side of the instrument panel near the left kick panel

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Park/Neutral Position Switch

On the left side of the transmission

Engine Controls Component Views in Engine Controls - 4.3L

Engine Controls Component Views in Engine Controls - 4.8L, 5.3L, 6.0L

Engine Controls Connector End Views in Engine Controls - 4.3L

Engine Controls Connector End Views in Engine Controls - 4.8L, 5.3L. 6.0L

Powertrain Control Module (PCM)

Near the left front inside the engine compartment

Engine Controls Component Views in Engine Controls - 4.8L, 5.3L, 6.0L

Engine Controls Connector End Views in Engine Controls - 4.8L, 5.3L. 6.0L

Starter Motor

On the lower right rear of the engine

Engine Electrical Component Views

Engine Electrical Connector End Views

Starter Motor Solenoid

On the starter motor

Engine Electrical Component Views

Engine Electrical Connector End Views

Underhood Bussed Electrical Center (UBEC)

At the left side of the engine compartment near the battery

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Vehicle Control Module (VCM)

On the left front of the engine compartment

Engine Controls Component Views in Engine Controls - 4.3L

Engine Controls Connector End Views in Engine Controls - 4.3L

C100

Under the UBEC

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G100

On the left radiator support bracket

Power and Grounding Component Views in Wiring Systems

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G102

On the right front of the engine block (4.3L)

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G102

On the left front of the engine block (4.8L, 5.3L, 6.0L)

Power and Grounding Component Views in Wiring Systems

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G103

On the right rear of the engine block

Power and Grounding Component Views in Wiring Systems

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G105

On the right front of the engine block (4.3L)

Power and Grounding Component Views in Wiring Systems

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G105

On the left front of the engine block (4.8L, 5.3L, 6.0L)

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G106

On the right front of the engine block (4.3L)

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--

G106

On the right rear of the engine block (4.8L, 5.3L, 6.0L)

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--

P100

At the left rear of the engine compartment in the front of the dash

Power and Grounding Component Views in Wiring Systems

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Splice Pack 205 (SP205)

On the left side of the IP behind the headlamp switch

Data Link Communications Component Views in Wiring Systems

Data Link Communications Connector End Views in Wiring Systems