GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Auxiliary Battery (Diesel)

In the left front side of the engine compartment

Power and Grounding Component Views in Wiring Systems

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Battery, LH (w/Dual Battery Option)

In the left front of the engine compartment

Power and Grounding Component Views in Wiring Systems

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Battery, RH

In the right front of the engine compartment

Power and Grounding Component Views in Wiring Systems

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Clutch Pedal Position Switch

At the top of the clutch pedal

Engine Electrical Component Views

Engine Electrical Connector End Views

Fusible Link

Molded into the battery positive connector

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Generator

At the LF of the engine

Engine Electrical Component Views

Engine Electrical Connector End Views

Ignition Switch

On the steering column, under the lock cylinder

Standard Wheel/Column Component Views in Steering Systems

Standard Wheel/Column Connector End Views in Steering Systems

Instrument Cluster

On the upper left end of the IP, above the steering column

Instrument Panel, Gages, and Console Component Views in Instrument Cluster

Instrument Panel, Gages, and Console Connector End Views in Instrument Cluster

IP Fuse Block

To the left of the IP, near the left front door jamb switch

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Mega Fuse Block

In the RF of the vehicle

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Remote Battery Stud

Part of the underhood fuse-relay center, in the left rear side of the engine compartment, on the fender

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Starter Motor

At the lower RR of the engine

Engine Electrical Component Views

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Starter Motor Solenoid

On the starter motor, to the rear of the engine

Engine Electrical Component Views

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Starter Relay

In the underhood fuse-relay center, at the LR of the engine compartment, on the fender

Engine Electrical Component Views

Engine Electrical Connector End Views

Transmission Range Switch

On the LH of the transmission

Engine Electrical Component Views

Engine Electrical Connector End Views

Underhood Fuse Block

At the LR of the engine compartment, on the fender

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

C100

Part of the engine harness to IP harness, in the left rear side of the engine compartment, at the bulkhead

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C115 (Diesel)

Inline from Engine harness to Alternator Jumper harness

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C266

Part of the IP harness to steering column harness, to the left side of the steering column, near the bulkhead

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G101

On the sheet metal, at the RF wheelhousing

Power and Grounding Component Views in Wiring Systems

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G102 (Diesel)

At the LF of the intake manifold

Power and Grounding Component Views in Wiring Systems

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G105 (Gas)

At the RF of the engine block, near the damper pulley

Power and Grounding Component Views in Wiring Systems

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G105 (Diesel)

Right rear of the cylinder head, cylinder #7 intake bolt

Power and Grounding Component Views in Wiring Systems

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S107 (5.0L, 5.7L)

Engine harness, approx. 20 cm (8 in) from EGR valve breakout, toward taillamp harness breakout

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S107 (6.5L-HD)

Engine harness, approx. 40 cm (15 in) from EBCM breakout, toward Transmission harness breakout

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S107 (7.4L)

Engine harness, approx. 18 cm (7 in) from EBCM breakout, toward the EGR harness breakout

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S125 (Dual Generator)

Alternator Jumper harness, approx. 18 cm (7 in) from the RH Generator

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S147 (Gas)

Engine harness, approx. 5 cm (2 in) from EGR valve breakout, toward taillamp harness breakout

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S147 (Diesel)

Engine harness, approx. 4 cm (1.5 in) from starter motor solenoid breakout

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S213

IP harness, approx. 4 cm (1.5 in) from steering column harness breakout, towards the DLC

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