GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

A/C Automatic Recirculating Switch

In the air conditioning (A/C) muffler hose assembly, close to the condenser.

HVAC Component Views

HVAC Connector End Views

A/C Compressor

4.8L, 5.3L, 6.0L - On the lower right front of the engine

HVAC Component Views

HVAC Connector End Views

A/C Compressor

4.3L - On the left top front of the engine

HVAC Component Views

HVAC Connector End Views

A/C Compressor Clutch

On the front of the A/C compressor

HVAC Component Views

HVAC Connector End Views

A/C Compressor Clutch Relay

In the Engine Wiring Harness Junction Block

HVAC Component Views

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A/C Compressor High Pressure Cutout Switch

In the rear of the A/C compressor

HVAC Component Views

HVAC Connector End Views

A/C Compressor Low Pressure Cycling Switch

On the right side of the A/C accumulator

HVAC Component Views

HVAC Connector End Views

Blower Motor

At the right lower IP on the HVAC module assembly

HVAC Component Views

HVAC Connector End Views

Blower Motor Resistor/Relay Assembly

At the right lower IP on the HVAC module assembly near the blower motor

HVAC Component Views

HVAC Connector End Views

Blower Motor Control

In the center of the dash below the radio

HVAC Component Views

HVAC Connector End Views

Body Wiring Harness Junction Block

Under the left side of the instrument panel near the left kick panel

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring

Engine Wiring Harness Junction Block

At the left side of the engine compartment near the battery

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Fuse Block

On the lower left side of the IP

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

HVAC Control Module

Under the radio in the center of the IP

HVAC Component Views

HVAC Connector End Views

I/P Wiring Harness Junction Block

On the lower right side of the IP

Power and Grounding Component Views

Power and Grounding Connector End Views

Mode Door Motor (HVAC)

On the left side of the HVAC module assembly

HVAC Component Views

HVAC Connector End Views

Powertrain Control Module (PCM)

Near the left front inside the engine compartment

Engine Controls Component Views in Engine Controls - 4.8L, 5.3L, 6.0L

Engine Controls Connector End Views in Engine Controls - 4.3L

Recirculation Door Motor (HVAC)

In the top center of the HVAC module assembly

HVAC Component Views

HVAC Connector End Views

Temperature Door Motor (HVAC)

Near the bottom center of the HVAC module assembly

HVAC Component Views

HVAC Connector End Views

Vehicle Control Module (VCM)

On the left front of the engine compartment

Engine Controls Component Views in Engine Controls - 4.3L

Engine Controls Connector End Views in Engine Controls - 4.3L

C296

Behind the IP compartment box

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C297

On the lower right side of the IP

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Inline Harness Connector End Views in Wiring Systems

C297A

On the lower right side of the IP

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Inline Harness Connector End Views in Wiring Systems

C297C

On the lower right side of the IP

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Inline Harness Connector End Views in Wiring Systems

G100

On the left front body mount

Power and Grounding Component Views in Wiring Systems

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G102

On the right front of the engine block (4.3L)

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G102

On the left front of the engine block (4.8L, 5.3L, 6.0L)

Power and Grounding Component Views in Wiring Systems

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G200

On the right upper IP at the "A" pillar

Power and Grounding Component Views in Wiring Systems

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G203

On the left upper IP at the A pillar

Harness Routing Views in Wiring Systems

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P100

At the left rear of the engine compartment in the front of the dash

Power and Grounding Component Views in Wiring Systems

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Splice Pack 203 (SP203)

On the top left side of the IP near the "A" pillar

Harness Routing Views in Wiring Systems

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S101

In the forward lamp harness

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S102

In the engine harness

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