GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

A/C Clutch

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

HVAC Component Views

HVAC Connector End Views

A/C Clutch Diode

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

HVAC Component Views

--

A/C High Pressure Switch

Right side lower front of 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 side rear of the engine compartment, near the right strut tower

HVAC Component Views

HVAC Connector End Views

A/C Low Side Temperature Sensor

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

HVAC Component Views

HVAC Connector End Views

Ambient Air Temperature Sensor

Center front of the vehicle, below the hood latch

HVAC Component Views

HVAC Connector End Views

Blower Motor

Right side 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 Data Link Communications

Data Link Communications Connector End Views in Data Link Communications

Driver Air Mix Actuator

Right side lower of the instrument panel, behind the instrument panel compartment

--

HVAC Connector End Views

Heater and A/C control

Center of the instrument panel, below the radio

--

HVAC Connector End Views

Heater and A/C Programmer

Right side 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 LH 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 Connector End Views

Passenger Temperature Control (without D55)

Passenger door panel

--

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 side 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

Sun load Temperature Sensor

Center top of the instrument panel, in the defroster grille

HVAC Component Views

HVAC Connector End Views

Underhood Fuse Block

Left side 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 side 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

Power and Grounding 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

Power and Grounding 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

Power and Grounding Connector End Views in Wiring Systems

G107

Left side front of engine, below the thermostat housing

Harness Routing Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

G201

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

Harness Routing Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

G204

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

Harness Routing Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

G205

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

Harness Routing Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

P100

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

Power and Grounding Component Views in Wiring Systems

--

P101

Left side rear of the engine compartment, near the strut tower

Power and Grounding Component Views in Wiring Systems

--

P600

Front of the right side front door jam, near the hinges

Power and Grounding Component Views in Wiring Systems

--

S105

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

Harness Routing Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

S130

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

Harness Routing Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

S149

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

Harness Routing Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

S152

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

--

Power and Grounding Connector End Views in Wiring Systems

S200

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

Harness Routing Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

S211

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

Harness Routing Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

S212

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

Harness Routing Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

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

Power and Grounding Connector End Views in Wiring Systems

S313

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

Harness Routing Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

S323 (Deville)

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

Harness Routing Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

S323 (Eldorado)

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

Harness Routing Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

S344

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

--

Power and Grounding Connector End Views in Wiring Systems

S404

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

Harness Routing Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

S406 (Deville)

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

Harness Routing Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

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

Power and Grounding Connector End Views in Wiring Systems