GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

A/C Compressor Clutch

On the right lower front of the engine, on the A/C compressor

HVAC Component Views

HVAC Connector End Views

A/C Compressor Diode

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

HVAC Component Views

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A/C High Pressure Switch

In the right front of the engine compartment, on the A/C compressor hose assembly

HVAC Component Views

HVAC Connector End Views

A/C High Temperature Sensor

In the right front of the engine compartment, near the A/C accumulator

HVAC Component Views

HVAC Connector End Views

A/C Low Pressure Switch

In the center rear of the vehicle, on the A/C evaporative tube

HVAC Component Views

HVAC Connector End Views

A/C Low Temperature Sensor

In the right front of the engine compartment, near the bottom of the A/C accumulator

HVAC Component Views

HVAC Connector End Views

A/C Mode Actuator

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

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HVAC Connector End Views

A/C Pressure Sensor

In the right front of the engine compartment, on the A/C compressor hose assembly

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HVAC Connector End Views

Air Inlet Actuator

Under the right side of the instrument panel, on the HVAC case above the blower motor

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HVAC Connector End Views

Ambient Air Temperature Sensor

Top of the instrument panel, in the defroster grille

HVAC Component Views

HVAC Connector End Views

Blower Control Module

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

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HVAC Connector End Views

Blower Motor

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

HVAC Component Views

HVAC Connector End Views

Data Link Connector

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 Actuator

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

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HVAC Connector End Views

Engine Compartment Junction Block

In the right front of the engine compartment, near the A/C accumulator

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Heater and A/C Control (Buick)

In the center of the instrument panel, near the radio

HVAC Component Views

HVAC Connector End Views

Heater and A/C Control (Oldsmobile)

In the center of the instrument panel, near the radio

HVAC Component Views

HVAC Connector End Views

Heater and A/C Programmer C1

Under the instrument panel, near the rear of the instrument panel compartment

HVAC Component Views

HVAC Connector End Views

Heater and A/C Programmer C2

Under the instrument panel, near the rear of the instrument panel compartment

HVAC Component Views

HVAC Connector End Views

Heater / Defroster Actuator

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

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HVAC Connector End Views

Inside Air Temperature Sensor

In the left knee bolster, to the right of the steering column

HVAC Component Views

HVAC Connector End Views

Instrument Panel Fuse Block

In the left side of the passenger compartment, attached to the door hinge pillar

Power and Grounding Component Views in Wiring Systems

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LH Solar Sensor

Left side of the instrument panel, near the defroster outlet

HVAC Component Views

HVAC Connector End Views

Passenger Actuator

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

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HVAC Connector End Views

Passenger Climate Control

In the right front door, mounted on the door trim panel

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HVAC Connector End Views

Powertrain Control Module (PCM)

Under the right side of the instrument panel, near the rear of the instrument panel compartment

Engine Controls Component Views in Engine Controls

Engine Controls Connector End Views in Engine Controls

RH Rear Fuse Block

Right side rear of the passenger compartment, under the rear seat cushion

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

RH Solar Sensor

Right side of the instrument panel, near the defroster outlet

HVAC Component Views in HVAC

HVAC Connector End Views

C101 (78 cavities)

Body harness to the engine harness, center rear of the engine compartment

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C205 (2 cavities)

Body harness, under the right side of the instrument panel, near the blower motor

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C207 (16 cavities)

Body harness to the HVAC harness, under the right side of the instrument panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C219 (8 cavities)

Instrument panel harness to the defroster grill harness, under the left side of the defroster grill

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G101

Right rear of the engine, near the right axle shaft

Power and Grounding Component Views in Wiring Systems

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G103

Right side of the engine compartment, on the lower rail near the upper engine mount

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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G202

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

Power and Grounding Component Views in Wiring Systems

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P107

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

Harness Routing Views in Wiring Systems

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P600

Front of the right front door jamb, near the door hinges

Harness Routing Views in Wiring Systems

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S100

In the body harness, approximately 26 cm (10.2 in) from the C105 connector

Harness Routing Views in Wiring Systems

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S105 (VIN 1)

In the engine harness, approximately 18.5 cm (7.3 in) from the A/C compressor clutch

Harness Routing Views in Wiring Systems

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S106 (VIN 1)

In the engine harness, approximately 18 cm (7.1 in) from the fuel injector #4

Harness Routing Views in Wiring Systems

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S106 (VIN C)

In the engine harness, approximately 38 cm (15 in) from the C101 connector

Harness Routing Views in Wiring Systems

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S108 (VIN 1)

In the engine harness, approximately 23.5 cm (9.3 in) from the A/C compressor clutch

Harness Routing Views in Wiring Systems

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S108 (VIN C)

In the engine harness, approximately 20 cm (7.9 in) from the A/C compressor clutch

Harness Routing Views in Wiring Systems

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S115

In the body harness, approximately 32 cm (12.6 in) from the C105 connector

Harness Routing Views in Wiring Systems

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S153

In the engine harness, approximately 33 cm (13 in) from the C106 connector

Harness Routing Views in Wiring Systems

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S155

In the engine harness, approximately 19 cm (7.5 in) from the fuel injector #4

Harness Routing Views in Wiring Systems

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S209

In the body harness, approximately 37.5 cm (14.8 in) from the turn signal flasher

Harness Routing Views in Wiring Systems

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S211

In the body harness, approximately 35.5 cm (14 in) from the turn signal flasher

Harness Routing Views in Wiring Systems

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S212

In the body harness, approximately 7 cm (2.8 in) from the P600 pass-though

Harness Routing Views in Wiring Systems

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S225

In the body harness, approximately 24.5 cm (9.6 in) from the G201 ground

Harness Routing Views in Wiring Systems

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S229

In the instrument panel harness, approximately 13 cm (5.1 in) from the C200 connector

Harness Routing Views in Wiring Systems

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S231

In the body harness, approximately 54.5 cm (21.5 in) from the C200 connector

Harness Routing Views in Wiring Systems

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S259

In the body harness, approximately 160.5 cm (63 in) from the powertrain control module

Harness Routing Views in Wiring Systems

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S273

In the instrument panel harness, approximately 68 cm (26.8 in) from the C203 connector

Harness Routing Views in Wiring Systems

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S274

In the HVAC harness, approximately 51 cm (20 in) from the C207 connector breakout

Harness Routing Views in Wiring Systems

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S275

In the HVAC harness, approximately 51 cm (20 in) from the C207 connector breakout

Harness Routing Views in Wiring Systems

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S276

In the HVAC harness, approximately 51 cm (20 in) from the C207 connector breakout

Harness Routing Views in Wiring Systems

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S277

In the HVAC harness, approximately 51 cm (20 in) from the C207 connector breakout

Harness Routing Views in Wiring Systems

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S278

In the HVAC harness, approximately 51 cm (20 in) from the C207 connector breakout

Harness Routing Views in Wiring Systems

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S282

In the body harness, approximately 23.5 cm (9.3 in) from the P107 pass-through

Harness Routing Views in Wiring Systems

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S285

In the body harness, approximately 152.5 cm (62 in) from the powertrain control module

Harness Routing Views in Wiring Systems

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S288

In the instrument panel pad harness, approximately 20 cm (7.9 in) from the C219 connector

Harness Routing Views in Wiring Systems

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S290

In the body harness, approximately 73 cm (28.7 in) from the P100 pass-through

Harness Routing Views in Wiring Systems

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S298

In the body harness, approximately 82.5 cm (32.5 in) from the P100 pass-through

Harness Routing Views in Wiring Systems

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S365

In the body harness, approximately 126 cm (49.6 in) from the P800 pass-through

Harness Routing Views in Wiring Systems

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