GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Body Control Module (BCM)

Inside the dash, above the radio

Body Control System Component Views in Body Control System

Body Control System Connector End Views in Body Control System

Convenience Center

On the left of the IP fuse block by the left kick panel

Harness Routing Views in Wiring Systems

Electrical Center Identification Views in Wiring Systems

Cruise Control Module

On the center front of the dash to the left of the windshield wiper module

HVAC Component Views in HVAC Systems - Manual

Cruise Control Connector End Views in Cruise Control

Cruise Control Switch

On the turn signal stalk lever

Cruise Control Component Views in Cruise Control

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Data Link Connector (DLC)

On the lower left side of the dash

Harness Routing Views in Wiring Systems

Data Link Communications Connector End Views in Data Link Communications

Inside Rear View Mirror

In the center of the windshield

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Instrument Cluster

On the left of the dash

HVAC Component Views in HVAC Systems - Manual

Instrument Panel, Gages, and Console Connector End Views

Instrument Panel (IP) Fuse Block

On the lower left side of the dash, next to the left side kick panel

Harness Routing Views in Wiring Systems

Electrical Center Identification Views in Wiring Systems

Oil Pressure Switch and Sender

On the rear of the engine to the left rear of the distributor

Engine Controls Component Views in Engine Controls - 4.3L

Engine Controls Connector End Views in Engine Controls - 4.3L

Radio

In the center of the dash

HVAC Component Views in HVAC Systems - Manual

Entertainment Connector End Views in Entertainment

Relay Block 2

Under left side of dash in data link connector bracket facing cowl

Data Link Communications Component Views in Data Link Communications

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Vehicle Control Module (VCM)

On the left side of the engine compartment on the lower side of the battery

Engine Controls Component Views in Engine Controls - 4.3L

VCM Connector End Views in Engine Controls - 4.3L

C100

In the left side front of the dash

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C201

In the lower half of the steering column

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G105

In the thermostat housing

Power and Grounding Component Views in Wiring Systems

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G107

In the left rear of the engine block next to the knock sensor

Harness Routing Views in Wiring Systems

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G110

In the IP harness 32 cm (12.6 in) from C102 breakout next the battery

Harness Routing Views in Wiring Systems

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S117

In the engine harness 2.5 cm (1 in) from the A/C low pressure cut-off switch breakout toward the engine

Harness Routing Views in Wiring Systems

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S201

In the IP harness 20 cm (7.9 in) from the fuse block.

Harness Routing Views in Wiring Systems

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S204

In the IP harness 7 cm (2.8 in) from C100

Harness Routing Views in Wiring Systems

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S206

In the IP harness 13 cm (5.1 in) from C100

Harness Routing Views in Wiring Systems

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S211

In the IP harness 6 cm (2.4 in) from the instrument cluster breakout

Harness Routing Views in Wiring Systems

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S212

In the IP harness 28 cm (11 in) from C100.

Harness Routing Views in Wiring Systems

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S213

In the IP harness 41 cm (16.1 in) from theheadlamp switch connector.

Harness Routing Views in Wiring Systems

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S218

In the IP Harness 28.5 cm (11.2 in) from the instrument cluster connector.

Harness Routing Views in Wiring Systems

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S219

In the IP harness 4 cm (1.6 in) form the instrument cluster connector breakout toward the right side of the dash

Harness Routing Views in Wiring Systems

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S260

In the IP harness 49 cm (19.3 in) from the right kick panel connector C205

Harness Routing Views in Wiring Systems

Splice Pack #261 (SP261)

In the IP harness 20 cm (7.9 in) from relay blocks breakout toward the DLC

Data Link Communications Component Views in Data Link Communications

Data Link Communications Connector End Views in Data Link Communications