GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

A/C Clutch

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

HVAC Component Views

HVAC Connector End Views

A/C Clutch Diode

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

HVAC Component Views

--

A/C Pressure Sensor

Right front side of the engine, near the A/C compressor on the hose assembly

HVAC Component Views

HVAC Connector End Views

Air Inlet Actuator

Under the right side of the instrument panel, right of the blower motor

HVAC Component Views

HVAC Connector End Views

Ambient Air Temperature Sensor

Center front of the vehicle, near the hood latch

HVAC Component Views

HVAC Connector End Views

Aspirator

Center left side of the instrument panel, on the left side of the HVAC case

HVAC Component Views

--

Blower Control Module

Under the right side of the instrument panel, right of the blower motor

HVAC Component Views

HVAC Connector End Views

Blower Motor

Under the right side of the instrument panel

HVAC Component Views

HVAC Connector End Views

Data Link Connector (DLC)

Under the left side of the instrument panel, left of the steering column

Data Link Communications Component Views In Data Link Communications

Data Link Communications Connector End Views in Data Link Communications

Driver Air Mix Actuator

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

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

HVAC Programmer (HCM)

Under the instrument panel, behind the instrument panel compartment

HVAC Component Views

HVAC Connector End Views

Inside Air Temperature Sensor

Under the left side of the instrument panel, near the left center A/C discharge vent

HVAC Component Views

HVAC Connector End Views

Instrument Panel Fuse Block

Under the right side of the instrument panel, right of the blower motor

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

LH Panel Temperature Sensor

Under the left side of the instrument panel, near the left A/C discharge vent

HVAC Component Views

HVAC Connector End Views

LH Heater Temperature Sensor

Under the left side of the instrument panel, in the left sound insulator

HVAC Component Views

HVAC Connector End Views

LH Sun Load Sensor

Left top side of the instrument panel, in the defroster grille

HVAC Component Views

HVAC Connector End Views

Mode Actuator

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

HVAC Component Views

HVAC Connector End Views

Passenger Air Mix Actuator

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

HVAC Component Views

HVAC Connector End Views

Passenger Temperature Control Assembly

On the right side of the instrument panel

HVAC Component Views

HVAC Connector End Views

RH Heater Temperature Sensor

Under the right side of the instrument panel, in the right sound insulator

HVAC Component Views

HVAC Connector End Views

RH Panel Temperature Sensor

Under the right side of the instrument panel, near the right center A/C discharge vent

HVAC Component Views

HVAC Connector End Views

RH Sunload Sensor

Right top side of the instrument panel, in the defroster grille

HVAC Component Views

HVAC Connector End Views

Underhood Fuse Block

Right front side of the engine compartment

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

C200

Body harness to the instrument panel harness, under the left side of the instrument panel left of the steering column

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C203

Body harness to the instrument panel harness, under the left side of the instrument panel left of the steering column

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C204

Instrument panel harness to the knee bolster harness, under the right side of the instrument panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C205

Instrument panel harness to the HVAC harness, behind the right side of the instrument panel on the HVAC module

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C207

Instrument panel harness to the defroster grille harness, left top side of the instrument panel under the defroster grille

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G102

Center right front side of the engine, near the starter motor

Power and Grounding Component Views in Wiring Systems

--

G201

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

Power and Grounding Component Views in Wiring Systems

--

G202

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

Power and Grounding Component Views in Wiring Systems

--

S106

In the engine harness, approximately 18 cm (7.1 in) from the A/C compressor clutch

Harness Routing Views in Wiring Systems

--

S107

In the engine harness, approximately 23 cm (9.1 in) from the A/C compressor clutch

Harness Routing Views in Wiring Systems

--

S203

In the body harness, approximately 6 cm (2.4 in) from the P500 pass through break out

Harness Routing Views in Wiring Systems

--

S208

In the body harness, approximately 35 cm (13.8 in) from G201 ground

Harness Routing Views in Wiring Systems

--

S213

In the instrument panel harness, approximately 44 cm (17.3 in) from the HVAC control assembly

Harness Routing Views in Wiring Systems

--

S274

In the HVAC harness, approximately 35.5 cm (14 in) from the mode actuator

Harness Routing Views in Wiring Systems

--

S275

In the HVAC harness, approximately 50.5 cm (19.9 in) from the mode actuator

Harness Routing Views in Wiring Systems

--

S278

In the HVAC harness, approximately 29 cm (11.4 in) from the mode actuator

Harness Routing Views in Wiring Systems

--