GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Cruise Control Module (CCM)

LR of Engine Compartment, on Bulkhead

Cruise Control Component Views in Cruise Control

Cruise Control Connector End Views in Cruise Control

Electronic Variable Orifice (EVO)/Passlock Module

Under the center of the IP

Theft Deterrent System Component Views in Theft Deterrent

Theft Deterrent System Connector End Views in Theft Deterrent

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

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

Powertrain Control Module (PCM) (Diesel)

Under RH end of IP, above Blower Motor, behind IP Compartment Box

Engine Controls Component Views in Engine Controls

Powertrain Control Module Connector End Views in Engine Controls

Radio, Connector C1

In the center of the IP

Entertainment Component Views in Entertainment

Entertainment Connector End Views in Entertainment

Radio, Connector C2

In the center of the IP

Entertainment Component Views in Entertainment

Entertainment Connector End Views in Entertainment

Radio, Connector C3

In the center of the IP, jumper from the radio to the cassestte player

Entertainment Component Views in Entertainment

Entertainment Connector End Views in Entertainment

Stoplamp Switch

On the top of the brake pedal

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Tranfer Case Encoder

LH Center of Transfer Case

Transfer Case Control Component Views

Transfer Case Control Connector End Views

Tranfer Case Encoder Motor

LH Center of Transfer Case

Transfer Case Control Component Views

Transfer Case Control Connector End Views

Transfer Case Select Switch

Center of IP, RH of Steering Column Shift Lever

Transfer Case Control Component Views

Transfer Case Control Connector End Views

Transfer Case Shift Control Module, Connector C1 (Auto 4WD)

Under LH of IP, near Convenience Center

Transfer Case Control Component Views

Transfer Case Control Connector End Views

Transfer Case Shift Control Module, Connector C2 (Auto 4WD)

Under LH of IP, near Convenience Center

Transfer Case Control Component Views

Transfer Case Control Connector End Views

Vehicle Control Module (VCM) (Gas)

Engine Compartment, near EBCM

Engine Controls Component Views in Engine Controls

VCM Connector End Views

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

C120

Part of the engine harness to front axle actuator, in the rear of the engine, near the transmission

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C200

Behind the right side of the IP, near the heater motor, in foam wrap

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C223

At the convenience center

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C224

In the left rear side of the engine compartment, under the EBCM

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C225

In the left rear side of the engine compartment, under the EBCM

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G200

Behind the left side of the IP, below the fuse block, on the tie bar

Power and Grounding Component Views in Wiring Systems

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P100

In the left rear side of the engine compartment, at the bulkhead, above C100

Harness Routing Views in Wiring Systems

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S111 (5.0L, 5.7L)

Engine harness, approx. 10 cm (4 in) from EBCM breakout, toward taillamp harness breakout

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S111 (6.5L)

Engine harness approx. 11 cm (4 in) from EBCM breakout, toward glow plugs

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S111 (7.4L)

Engine harness, approx. 7 cm (2.5 in) from EBCM breakout

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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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S162 (5.0L, 5.7L )

Engine harness, approx. 17 cm (6.5 in) from starter solenoid breakout, toward LH oxygen sensor breakout

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S162 (7.4L)

Engine harness, approx. 15 cm (6 in) from RH bank oxygen sensor breakout, toward starter solenoid breakout

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S204

IP harness, approx. 10 cm (4 in) from C100, towards Data Link Connector (DLC)

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S212

IP harness, approx. 8 cm (3 in) from inflatable restraint switch 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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S217

IP harness, approx. 16 cm (6 in) from instrument cluster harness breakout, toward radio connectors breakout

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S221

IP harness, approx. 40 cm (15.5 in) from instrument cluster breakout

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S235

IP harness, approx. 4 cm (1.5 in) from steering column harness breakout, C100

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S298

IP harness, approx. 24 cm (9.5 in) from instrument cluster breakout, toward radio breakout

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S302

Selectable 4WD harness, approx. 10 cm (4 in) from the Tranfer Case Relay breakout, toward the Front Axle Switch

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