GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Convenience Center

Under the left side of the IP, on the bulkhead

Transfer Case Control Component Views

Power and Grounding Connector End Views in Wiring Systems

Front Axle Actuator

On the RH side of the front differential

Transfer Case Control Component Views

Transfer Case Control Connector End Views

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

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

Transfer Case Mode Selector Illumination Lamp

In Transfer Case Shift Lever housing

Transfer Case Control Component Views

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Timer Logic and Relay Module

RR of Engine Compartment, near center of Bulkhead

Transfer Case Control Component Views

Transfer Case Control Connector End Views

Transfer Case Shift Lever

LH side of floor console

Transfer Case Control Component Views

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Transfer Case Switch

Left side of transfer case, behind input shaft, facing toward engine

Transfer Case Control Component Views

Transfer Case Control Connector End Views

Tranfer Case Synchronizer

Rear of the Transfer Case

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 in Engine Controls

4WD Indicator Lamp

In Transfer Case Shift Lever Housing

Transfer Case Control Component Views

Transfer Case Control Connector End Views

C100

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

Transfer Case Control Component Views

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

C210

At the convenience center

Harness Routing Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

C298

Behind the left side of the IP, near the convenience center

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

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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G202

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

Harness Routing Views in Wiring Systems

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P101

In the right rear side of the engine compartment, at the bulkhead

Harness Routing Views in Wiring Systems

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S111 (7.4L)

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

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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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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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S217

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

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S235

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

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S259

Crossbody harness, approx. 7 cm (2.5 in) into seat belt switch harness, toward C212

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S302

Transfer case harness, approx. 10 cm (4 in) from the transfer case timer logic and relay module breakout, toward the Front Axle Switch

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S314

Transfer case harness, approx. 5 cm (2 in) from transfer case timer logic and relay module breakout, toward front axle switch

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