GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

A/C Clutch

Right lower front of the engine, on the A/C compressor

HVAC Component Views

HVAC Connector End Views

A/C Clutch Diode

Right front of the engine, near the A/C compressor in the harness

HVAC Component Views

HVAC Connector End Views

A/C High Pressure Switch

Right lower front of the engine, near the A/C compressor

HVAC Component Views

HVAC Connector End Views

A/C High Side Temperature Sensor

Center rear of the engine compartment, near the blower motor

HVAC Component Views

HVAC Connector End Views

A/C Low Pressure Switch

Right rear of the engine compartment, near the right strut tower

HVAC Component Views

HVAC Connector End Views

A/C Low Side Temperature Sensor

Right rear of the engine compartment, near the right strut tower

HVAC Component Views

HVAC Connector End Views

Ambient Temperature Sensor

Center front of the vehicle, below the hood latch

HVAC Component Views

HVAC Connector End Views

Blower Motor

Right rear of the engine compartment

HVAC Component Views

HVAC Connector End Views

Data Link Connector

Under the left side of the instrument panel, on the hood release bracket

Data Link Communications Component Views in Wiring Systems

Data Link Communications Connector End Views in Wiring Systems

Driver Air Mix Actuator

Lower right side of the instrument panel, behind the instrument panel compartment

HVAC Component Views

HVAC Connector End Views

Heater and A/C control

Center of the instrument panel, below the radio

HVAC Component Views

HVAC Connector End Views

Heater and A/C Programmer

Right rear of the instrument panel, behind the instrument panel compartment

HVAC Component Views

HVAC Connector End Views

Inside Air Temperature Sensor (Eldorado)

Center top of the instrument panel, under the instrument panel top pad

HVAC Component Views

HVAC Connector End Views

Inside Air Temperature Sensor (Deville)

In the left knee bolster

HVAC Component Views

HVAC Connector End Views

LH Underhood Fuse Block

Left side of the engine compartment

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Passenger Air Mix Actuator

Under the right side of the instrument panel, on the HVAC module

HVAC Component Views

HVAC Connector End Views

Passenger Temperature Control (without D55)

Passenger door panel

HVAC Component Views

HVAC Connector End Views

Rear Blower Motor

Under the front center of the console

HVAC Component Views

HVAC Connector End Views

Rear Blower Motor Resistor Module

Under the front center of the console, near the rear blower motor

HVAC Component Views

HVAC Connector End Views

Rear Blower Switch

Rear of the center console, above the ashtray

HVAC Component Views

HVAC Connector End Views

Rear Compartment Fuse Block

Left front of the rear compartment, on the electronics bay

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Sunload Temperature Sensor

Center top of the instrument panel, in the defroster grille

HVAC Component Views

HVAC Connector End Views

Underhood Fuse Block

Left front of the engine compartment, near the strut tower

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Vacuum and Electric Solenoid

Right rear of the instrument panel, behind the instrument panel compartment, on the heater and A/C programmer

HVAC Component Views

HVAC Connector End Views

C203

Body harness to the instrument panel harness, under the right side of the instrument panel, near the instrument panel compartment

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C205

Body harness to engine harness, under the right side of the instrument panel, behind the instrument panel compartment

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C307

Body harness to the body harness, taped in the body harness approximately 15 cm (5.9 in.) from the cross car breakout

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G107

Left front of engine, below the thermostat housing

Power and Grounding Component Views in Wiring Systems

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G201

Right front of the passenger compartment, under the kick panel trim plate

Power and Grounding Component Views in Wiring Systems

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G204

Left front of the passenger compartment, under the kick panel trim plate

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G205

Right front of the passenger compartment, under the kick panel trim plate

Power and Grounding Component Views in Wiring Systems

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P100

Right rear of the engine compartment, near the strut tower

Power and Grounding Component Views in Wiring Systems

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P101

Left rear of the engine compartment, near the strut tower

Power and Grounding Component Views in Wiring Systems

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P600

Front of the right front door jam, near the hinges

Power and Grounding Component Views in Wiring Systems

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S105

In the body harness, approximately 4 cm (1.6 in) from the C101 connector breakout

Harness Routing Views in Wiring Systems

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S130

In the engine harness, approximately 90 cm (35.4 in) from the right cooling fan motor connector

Harness Routing Views in Wiring Systems

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S149

In the body harness, approximately 10 cm (3.9 in) from the C101 connector breakout

Harness Routing Views in Wiring Systems

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S152

In the engine harness, approximately 7.5 cm (3 in) from the A/C compressor clutch connector

Harness Routing Views in Wiring Systems

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S200

In the body harness, approximately 8 cm (3.1 in) from P500

Harness Routing Views in Wiring Systems

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S211

In the body harness, approximately 20 cm (7.8 in) from C203

Harness Routing Views in Wiring Systems

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S212

In the body harness, approximately 6.5 cm (2.6 in) from the C205 connector breakout

Harness Routing Views in Wiring Systems

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S217

In the instrument panel harness, approximately 12.5 cm (4.9 in) from the sunload sensor connector breakout

Harness Routing Views in Wiring Systems

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S313

In the body harness, approximately 6.5 cm (2.6 in) from the G302 connector breakout

Harness Routing Views in Wiring Systems

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S323 (Deville)

In the body harness, approximately 28 cm (11 in) from the radio connector breakout

Harness Routing Views in Wiring Systems

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S323 (Eldorado)

In the body harness, approximately 30 cm (11.8 in) from the P600 pass-through breakout

Harness Routing Views in Wiring Systems

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S344

In the console harness, approximately 4 cm (1.6 in) from the cigar lighter breakout

Harness Routing Views in Wiring Systems

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S404

In the body harness, approximately 21 cm (8.3 in) into the cross car breakout

Harness Routing Views in Wiring Systems

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S406 (Deville)

In the body harness, approximately 27.5 cm (10.8 in) into the cross car breakout

Harness Routing Views in Wiring Systems

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S406 (Eldorado)

In the body harness, approximately 6.5 cm (2.6 in) from the P700 pass-through breakout

Harness Routing Views in Wiring Systems

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