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 top of 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

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Generator

LH Front of Engine

Engine Electrical Component Views

Engine Electrical Connector End Views

Ignition Switch

IP Steering Column, under Lock Cylinder

Standard Wheel/Column Component Views in Steering Wheel and Column

Standard Wheel/Column Connector End Views in Steering Wheel and Column

Instrument Cluster

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

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

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

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

Park/Neutral Position (PNP) Switch

At LH center of Transmission

Automatic Transmission Electronic Component Views in Automatic Transmission

Automatic Transmission Internal Connector End Views in Automatic Transmission

Remote Battery Stud

Part of the Underhood Fuse Block, 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

Lower RR of Engine

Engine Electrical Component Views

Engine Electrical Connector End Views

Starter Motor Solenoid

On Starter Motor

Engine Electrical Component Views

Engine Electrical Connector End Views

Starter Relay

In Underhood Fuse Block, LR of Engine Compartment, on Fender

Engine Electrical Component Views

Engine Electrical Connector End Views

Underhood Fuse Block

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

C100

IP harness inline to the Engine 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)

Engine harness, inline to the Alternator Jumper harness, top front center of the engine

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C266

IP harness inline 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 right front wheelhousing

Power and Grounding Component Views in Wiring Systems

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G102 (Diesel)

On the left front side of the intake manifold

Power and Grounding Component Views in Wiring Systems

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G105 (Gas)

On the right front side of the engine block

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 tthe 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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