GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Body Control Module (BCM)

RH footwell, mounted to the toe board, behind the carpet

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Body Control System Connector End Views in Body Control Systems

Data Link Connector (DLC)

LH side of instrument panel, below the steering column

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Data Link Communications Connector End Views in Data Link Communications

Defogger Grid

On rear window

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HVAC Control Assembly (C60)

Center of the instrument panel, under the radio

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HVAC Connector End Views in HVAC - Manual

HVAC Control Assembly (CJ2)

Center of the instrument panel, under the radio

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HVAC Connector End Views in HVAC - Automatic

Instrument Panel Electrical Center

RH footwell, mounted on the toe board, behind the carpet

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Star Connector #1

Instrument panel harness, serial data, LH side of the Body Control Module (BCM)

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C206 (3 cavities)

Instrument panel harness, blunt cut, under the electronic traction/suspension control switch.

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Inline Harness Connector End Views in Wiring Systems

S312

Front body harness, rear defogger capacitor, approximately 20.0 cm (7.8 in) from the SP302 breakout. (CKT 293 and CKT 899)

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S314

Front body harness, Rear defogger capacitor, approximately 20.0 cm (7.8 in) from the SP302 breakout. (CKT 2050 and CKT 899)

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SP202 - Splice Pack 202

Instrument panel harness, grounded to G202 (CKT 150)

Power and Grounding Component Views in Wiring Systems

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G202

Instrument panel harness, at base of RH A-Pillar, ground for SP202 (CKT 150)

Power and Grounding Component Views in Wiring Systems

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G301

Front body harness, behind the LH seat, at the antenna module (CKT 350)

Power and Grounding Component Views in Wiring Systems

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G302

Front body harness, on the RH B-Pillar, ground for SP302 (CKT 150)

Power and Grounding Component Views in Wiring Systems

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