GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

A/C Compressor Clutch

Part of the A/C compressor, attached to the RH front of the engine block

HVAC Component Views in HVAC - Manual

HVAC Connector End Views in HVAC - Manual

A/C Diode

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

HVAC Component Views in HVAC - Manual

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A/C Refrigerant Pressure Sensor

Attached to the A/C high side line

Power and Grounding Component Views in Wiring Systems

HVAC Connector End Views in HVAC - Manual

Blower Motor Control Module (CJ2)

Behind the LH side of the blower motor, under the RH side of the instrument panel

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HVAC Connector End Views

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

HVAC Control Assembly (CJ2)

Center of the instrument panel, under the radio

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HVAC Connector End Views

HVAC Control Solenoid Valve (CJ2)

RH side of the Blower Motor

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HVAC Connector End Views

Inside Air Temperature Sensor (CJ2)

In air outlet vent, RH side of the steering column

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HVAC Connector End Views

Instrument Panel Electrical Center

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

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LH Electric Actuator (CJ2)

Attached to the LH side of the HVAC module case

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HVAC Connector End Views

Outside Air Temperature Sensor

RH front of engine compartment, on the radiator support

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Powertrain Control Module (PCM)

Behind the RF fender, between the wheelhouse and the dash panel, below the battery

Engine Controls Component Views in Engine Controls 5.7L

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RH Electric Actuator (CJ2)

Attached to the RH side of the HVAC module case.

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HVAC Connector End Views

Star Connector #1

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

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Sunload Temperature Sensor

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

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HVAC Connector End Views

Underhood Electrical Center

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

Engine Controls Component Views in Engine Controls 5.7L

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C102 (20 cavities)

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

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Inline Harness Connector End Views in Wiring Systems

C150 (20 cavities)

Forward lamp harness to Engine harness, RH side rear of engine compartment, below the battery

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Inline Harness Connector End Views in Wiring Systems

P200

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

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S120

Engine harness, approximately 15.0 cm (5.9 in) from the main harness in the branch leading to the Powertrain Control Module (PCM) connectors (CKT451)

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S201 (CJ2)

Instrument panel harness, approximately 35.0 cm (13.7 in) from the HVAC control head connector (CKT1791)

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S206

Instrument panel harness, approximately 5 cm (1.9 in) from the blower motor control module connector breakout (CKT 1132)

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S215 (CJ2)

Instrument panel harness, approximately 6.5 cm (2.5 in) left of the inflatable restraint instrument panel module breakout (CKT 1798)

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SP100 - Splice Pack 100

Forward lamp harness, grounded to G102, at the RH headlamp opening door assembly connector breakout (CKT150)

Power and Grounding Component Views in Wiring Systems

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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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G102

Forward lamp harness, on the top of the RH frame rail, behind the RH headlamp assembly, ground for SP100 (CKT 250)

Power and Grounding Component Views in Wiring Systems

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G106

Engine harness, RH side of the engine, above the starter (CKT 451)

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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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