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

Center 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

Driver Temperature Control (CCP)

On the center console under the radio

HVAC Component Views

HVAC Connector End Views

Heater and A/C Control

Center on 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

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

HVAC Component Views

HVAC Connector End Views

Instrument Cluster (IPC)

Left front on the instrument panel

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console

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 (CCP)

On the center console under the radio

HVAC Component Views

HVAC Connector End Views

Powertrain Control Module (PCM)

In the left front corner of the engine compartment, under the air cleaner housing

Engine Controls Component Views in Engine Controls - 4.6L

Powertrain Control Module Connector End Views in Engine Controls - 4.6L

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

Underhood Fuse/Relay Center

In the engine compartment on the left side near the Underhood Fuse Block

Power and Grounding Component 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

C309

In the body harness, approximately 10  cm (3.94 in) from the G302 connector 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

G302

Under the left hand front seat, on the number 3 seat pan bar

Power and Grounding Component 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.

--

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.

--

S149

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

Harness Routing Views in Wiring Systems.

--

S152

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

--

--

S200

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

Harness Routing Views in Wiring Systems.

--

S211

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

Harness Routing 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.

--

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.

--

S313

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

Harness Routing Views in Wiring Systems.

--

S323

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

Harness Routing Views in Wiring Systems.

--

S344

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

--

--

S345

In the body harness, approximately 6.5 cm (2.6 in) from the rear blower motor assembly

--

--

S346

In the body harness approximately 6.5 cm (2.6 in) from the C309 inline connector breakout

--

--

S312

In the body harness approximately 6.5 cm (2.6 in) from the rear compartment fuse block breakout

--

--

S404

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

Harness Routing Views in Wiring Systems.

--

S406

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

Harness Routing Views in Wiring Systems.

--