GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Data Link Connector

Under the LH side of the IP, LH of the steering column, mounted on the knee bolster

Data Link Communications Component Views in Wiring Systems

Data Link Communications Connector End Views in Wiring Systems

EVO/Passlock Module

Under the center of the IP

Theft Deterrent System Component Views

Theft Deterrent System Connector End Views

Instrument Cluster

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

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

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

Passlock Sensor

Located in the steering column

Standard Wheel/Column Component Views in Steering Wheel and Column -- Standard

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

Powertrain Control Module (PCM)

Under the RH end of the IP, above the blower motor, behind the IP compartment box

    •  Engine Controls Component Views in Engine Controls 4.3L
    •  Engine Controls Component Views In Engine Controls 5.0L, 5.7L
    •  Engine Controls Component Views in Engine Controls 6.5L
    •  Engine Controls Component Views In Engine Controls 7.4L
    •  VCM Connector End Views in Engine Controls 4.3L
    •  VCM Connector End Views in Engine Controls 5.0L, 5.7L
    •  Powertrain Control Module Connector End Views in Engine Controls 6.5L
    •  VCM Connector End Views in Engine Controls 7.4L

Vehicle Control Module (VCM)

Engine compartment, near the EBCM

    •  Engine Controls Component Views in Engine Controls 4.3L
    •  Engine Controls Component Views in Engine Controls 5.0L, 5.7L
    •  Engine Controls Component Views in Engine Controls 6.5L
    •  Engine Controls Component Views in Engine Controls 7.4L
    •  VCM Connector End Views in Engine Controls 4.3L
    •  VCM Connector End Views in Engine Controls 5.0L, 5.7L
    •  Powertrain Control Module Connector End Views in Engine Controls 6.5L
    •  VCM Connector End Views in Engine Controls 7.4L

C100

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

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

C266

Part of the IP harness to the 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

S150

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

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S213

IP harness, approx. 4 cm (1.5 in) from the steering column harness breakout, towards the DLC

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S215

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

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S280

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

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G103

On the RF side of the engine, near the thermostat housing

Power and Grounding Component Views in Wiring Systems

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G104 (5.0L, 5.7L)

Backside of the right cylinder heard

Power and Grounding Component Views in Wiring Systems

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G104 (6.5L)

Top rear of the right cylinder head

Power and Grounding Component Views in Wiring Systems

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G104 (7.4L)

Backside of the engine block, below the right cylinder head

Power and Grounding Component Views in Wiring Systems

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P101

In the RR side of the engine compartment, at the bulkhead

Harness Routing Views in Wiring Systems

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