GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Air Conditioning (A/C) Blower Motor Front

Behind the coolant recovery reservoir, on the right front fender

HVAC Component Views

Heater Blower Controls Connector End Views in Heater and Ventilation (Non-A/C)

A/C Blower Motor Rear

On the left rear of the vehicle, near the D pillar

HVAC Component Views

HVAC Connector End Views

A/C Compressor

On the left front of the engine

Harness Routing Views in Wiring Systems

HVAC Connector End Views

A/C Compressor Clutch

In the front of the A/C compressor

Harness Routing Views in Wiring Systems

HVAC Connector End Views

A/C Compressor Clutch Diode (D101)

In the underhood fuse-relay center

Harness Routing Views in Wiring Systems

Electrical Center Identification Views in Wiring Systems

A/C Enable Relay

In the underhood fuse-relay center

Harness Routing Views in Wiring Systems

Electrical Center Identification Views in Wiring Systems

A/C High Pressure Cut-Off-Switch

In the rear of the A/C compressor

Harness Routing Views in Wiring Systems

HVAC Connector End Views

A/C Low Pressure Cut-Off Switch

On the top of the A/C receiver dryer

HVAC Component Views

HVAC Connector End Views

A/C Relay (Rear A/C - Heat)

In the underhood fuse-relay center

Harness Routing Views in Wiring Systems

Electrical Center Identification Views in Wiring Systems

A/C Resistor Pack Rear

Above the rear blower motor, in the blower motor duct

HVAC Component Views

HVAC Connector End Views

A/C Switch Rear

In the center of the dash, on the right side of the radio

HVAC Component Views

HVAC Connector End Views

Blower Motor Front

Behind the coolant recovery reservoir, on the right front fender

HVAC Component Views

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Blower Motor Resistor and Relay Pack

Mounted between the evaporator and the front blower motor, on the right side of the dash

Lighting Systems Component Views in Lighting Systems

HVAC Connector End Views

Convenience Center

On the lower left side of the dash next to the left side kick panel

Harness Routing Views in Wiring Systems

Electrical Center Identification Views in Wiring Systems

Heater and A/C Control Valve Solenoid

On the lower left side of the evaporative housing, behind the receiver dryer

HVAC Component Views

HVAC Connector End Views

Heater Blower Motor Rear

On the left side of the vehicle, behind the B pillar

Heater Blower Controls Component Views in Heater and Ventilation (Non-A/C)

HVAC Connector End Views

Heater Resistor Pack Rear

On the top of the rear heater core assembly

Heater Blower Controls Component Views in Heater and Ventilation (Non-A/C)

HVAC Connector End Views

Heater Switch Rear

In the center of the dash, on the right side of the radio

HVAC Component Views

HVAC Connector End Views

HVAC Control Module (with A/C)

In the center of the dash

HVAC Component Views

HVAC Connector End Views

Instrument Panel (IP) Fuse Block

On the lower left side of the dash next to the left side kick panel

Harness Routing Views in Wiring Systems

Electrical Center Identification Views in Wiring Systems

Temperature Control Motor

On the lower right side of the dash, on the left side of the main air duct

HVAC Component Views

HVAC Connector End Views

Underhood Fuse-Relay Center (RWD)

On the left side front of the dash near the battery

Harness Routing Views in Wiring Systems

Electrical Center Identification Views in Wiring Systems

Underhood Fuse-Relay Center (F4WD)

On the left side front of the dash near the battery

Harness Routing Views in Wiring Systems

Electrical Center Identification Views in Wiring Systems

Vehicle Control Module (VCM)

On the left side of the engine compartment on the lower side of the battery

Engine Controls Component Views in Engine Controls

VCM Connector End Views in Engine Controls

C100

In the left side front of the dash

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C101

In the left bulkhead, on the left side front of the dash

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C105

In the left side front of the dash, under the UH fuse-relay center

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C212

In the left side kick panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C213

In the left side kick panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C218

In the convenience center

Electrical Center Identification Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C219

In the convenience center

Electrical Center Identification Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

D101

In the underhood fuse-relay center

Electrical Center Identification Views in Wiring Systems

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G100

In the right front of the radiator support next to the engine coolant reservoir

Harness Routing Views in Wiring Systems

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G104

In the right side of the front of the dash above the blower motor

Harness Routing Views in Wiring Systems

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G200

In the right front of the A pillar above the right front door jamb switch

Harness Routing Views in Wiring Systems

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G301

Above the rear heater, toward the rear of the vehicle

Power and Grounding Component Views in Wiring Systems

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G404

Below the rear A/C blower toward the front of the vehicle

Power and Grounding Component Views in Wiring Systems

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P100

In the left side front of the dash to the left of the bulkhead

Harness Routing Views in Wiring Systems

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S100

In the forward lamp harness 8 cm (3.2 in) from the right side headlamp breakout toward the left side of the vehicle

Harness Routing Views in Wiring Systems

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S111

In the engine harness, 17 cm (6.7 in) from the underhood fuse-relay center breakout, toward the underhood

Harness Routing Views in Wiring Systems

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S124

In the engine harness 13 cm (5.1 in) from the oil pressure switch breakout toward C100

Harness Routing Views in Wiring Systems

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S224

In the IP harness, 17 cm (6.7 in) from the headlamp switch connector breakout, toward the right side of the dash

Harness Routing Views in Wiring Systems

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S229

In the IP harness 4 cm (1.6 in) from the temperature control motor connector breakout toward the right side of the dash

Harness Routing Views in Wiring Systems

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S238

In the IP harness, 1.5 cm (0.6 in) from the C201 connector breakout, toward C100

Harness Routing Views in Wiring Systems

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