GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

A/C Compressor Clutch

Attached to the RH front of the engine block, part of the A/C compressor

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HVAC Connector End Views in HVAC - Automatic

A/C Diode

In the engine harness, at the A/C compressor clutch coil connector

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A/C Refrigerant Pressure Sensor

Attached to the A/C highside line

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Engine Controls Connector End Views in Engine Controls 5.7L

Blower Motor Control Module (CJ2)

Behind the blower module, under the RH side of the instrument panel

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HVAC Connector End Views in HVAC - Automatic

Data Link Connector (DLC)

LH side of instrument panel, below the steering column

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HVAC Control Head (CJ2)

Center of the instrument panel, under the radio

Power and Grounding Component Views in Wiring Systems

HVAC Connector End Views in HVAC - Automatic

Inside Air Temperature Sensor (CJ2)

In air outlet vent, RH side of the steering column

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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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Outside Air Temperature Sensor

RH front of engine compartment, on the radiator support

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HVAC Connector End Views in HVAC - Automatic

Powertrain Control Module (PCM)

RH side of engine compartment, between the wheelhouse and the dash panel, below the battery

Engine Controls Component Views in Engine Controls 5.7L

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Star Connector #1

Instrument panel harness, serial data

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Data Link Communications Connector End Views in Wiring Systems

Star Connector #2

Instrument panel harness, serial data

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Data Link Communications Connector End Views in Wiring Systems

Sunload Temperature Sensor

On top of the Instrument Panel, LH side of the defroster grid

Power and Grounding Component Views in Wiring Systems

HVAC Connector End Views in HVAC - Automatic

Temperature Door Motor

Mounted on the heater case

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HVAC Connector End Views in HVAC - Manual

Underhood Electrical Center

RH side of the engine compartment, between the wheelhouse and the dash panel, front of the battery

Power and Grounding Component Views in Wiring Systems

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C102 (8 cavities)

Instrument panel harness to forward lamp harness, RH side rear of engine compartment

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C150 (10 cavities)

Instrument panel harness to engine harness, RH side rear of engine compartment

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P200

Instrument panel harness, RH side of Instrument panel on dash panel

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S201 (CJ2)

Instrument panel harness, approximately 30.0 cm from the HVAC control head connector (CKT1791)

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S202

Instrument panel harness, approximately 46.5 cm right of the inside rearview mirror breakout (CKT 150)

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S208

Instrument panel harness, approximately 32.5 cm from the radio connectors (CKT 145)

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SP100 - Splice Pack #100

Forward lamp harness, attached to G102

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SP202 - Splice Pack #202

Instrument panel harness, attached to G202

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G202

Instrument panel harness, at base of RH A-Pillar. SP202 is attached

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