GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Data Link Connector (DLC)

Under LH of IP, LH of Steering Column, mounted to bottom of Knee Bolster

Data Link Communications Component Views

Data Link Communications Connector End Views

Electronic Brake Control Module (EBCM)

Near Brake Master Cylinder, at LF Wheelhousing

Antilock Brake System Component Views

Antilock Brake System Connector End Views

Electronic Variable Orifice (EVO)/Passlock Module

Under the center of the IP

Theft Deterrent System Component Views

Theft Deterrent System Connector End Views

Inflatable Restraint Sensing and Diagnostic Module (SDM)

Under Carpet Beneath Drivers Seat

SIR Component Views

SIR Connector End Views

IP Fuse Block

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

Power and Grounding Component Views

Power and Grounding Connector End Views

Powertrain Control Module (PCM)

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

Engine Controls Component Views Engine Controls Component Views Engine Controls Component Views

Powertrain Control Module Connector End Views

Radio

In the center of the IP

Entertainment Component Views

Entertainment Connector End Views

Remote Control Door Lock Receiver

Under the center of the IP, to the right of the knee bolster

Keyless Entry Component Views

Keyless Entry Connector End Views

Vehicle Control Module (VCM)

Engine Compartment, near EBCM

Engine Controls Component Views Engine Controls Component Views Engine Controls Component Views

VCM Connector End Views

Transfer Case Control Module (TCCM)

Under IP, on Steering Column Support Bracket

Transfer Case Control Component Views Transfer Case Control Component Views

Transfer Case Control Connector End Views Transfer Case Control Connector End Views

Transfer Case Shift Control Module

Under LH of IP, near Convenience Center

Transfer Case Control Component Views Transfer Case Control Component Views

Transfer Case Control Connector End 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

Power and Grounding Component Views

Power and Grounding Connector End Views

C200

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

Power and Grounding Component Views

Power and Grounding Connector End Views

C231

Part of the IP harness to SIR harness

Power and Grounding Component Views

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C298

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

Power and Grounding Component Views

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G103 (Gas)

On the top front center of the engine, near the thermostat housing

Power and Grounding Component Views

Power and Grounding Connector End Views

G104 (4.3L, 5.0L/5.7L)

Back side of the right cylinder head

Power and Grounding Component Views

Power and Grounding Connector End Views

G104 (6.5L)

Top rear of the right cylinder

Power and Grounding Component Views

Power and Grounding Connector End Views

G104 (7.4L)

Backside of the engine block, below below the right cylinder head

Power and Grounding Component Views

Power and Grounding Connector End Views

G200

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

Power and Grounding Component Views

Power and Grounding Connector End Views

S150

Engine harness, approx. 13 cm (5 in) from EBCM breakout

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S204

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

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S215

IP harness, approx. 8 cm (3 in) from instrument cluster breakout, toward radio connectors breakout

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S272

IP harness, approx. 4 cm (1.5 in) from auxiliary power outlet breakout

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S280

IP harness, approx. 5 cm (2 in) from DLC breakout

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