GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Auxiliary Blower Motor

LH rear corner of interior cabin, behind rear wheel house.

Heater Blower Controls Component Views

Heater Blower Controls Connector End Views

Auxiliary Blower Motor Relay, High

LH rear corner of interior cabin, behind rear wheel house.

Heater Blower Controls Component Views

Heater Blower Controls Connector End Views

Auxiliary Blower Motor Relay, Low

LH rear corner of interior cabin, behind rear wheel house.

Heater Blower Controls Component Views

Heater Blower Controls Connector End Views

Auxiliary Blower Motor Relay, Medium

LH rear corner of interior cabin, behind rear wheel house.

Heater Blower Controls Component Views

Heater Blower Controls Connector End Views

Auxiliary Blower Resistor

LH rear corner of interior cabin, behind rear wheel house.

Heater Blower Controls Component Views

Heater Blower Controls Connector End Views

Auxiliary Blower Switch

On the IP, to the right of the steering column.

Heater Blower Controls Component Views

Heater Blower Controls Connector End Views

Blower Motor

RH rear of engine compartment, on the cowl.

Heater Blower Controls Component Views

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Blower Motor Resistor/Relay

At HVAC control panel.

Heater Blower Controls Component Views

Heater Blower Controls Connector End Views

Convenience Center

Under IP, LH side.

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Heater and A/C Controller

Center of Instrument panel.

Heater Blower Controls Component Views

Heater Blower Controls Connector End Views

IP Fuse Block

LH lower kick panel.

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Underhood Fuse-Relay Center

Engine compartment, left fender.

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

C100

LH rear of engine compartment at bulkhead.

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C202

LH body harness under LH side of IP near brake pedal at convenience center.

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C213

IP harness behind RH side of IP near center of vehicle.

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C219

LH body harness under LH side of IP.

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C407

LH rear corner of interior cabin, behind rear wheel house.

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C408

LH rear corner of interior cabin, behind rear wheel house.

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G103 (Gasoline)

Engine harness rear of RH cylinder head.

Power and Grounding Component Views in Wiring Systems

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G103 (Diesel)

LH front of Engine harness, near A/C compressor.

Power and Grounding Component Views in Wiring Systems

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G400

LH rear corner of interior cabin, behind rear wheel house.

Power and Grounding Component Views in Wiring Systems

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P101

Under RH side of Instrument panel.

Harness Routing Views in Wiring Systems

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S101 (6.5L)

Engine harness, approx 11 cm (4.3 in) into C101 breakout

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--

S103 (7.4L)

Engine harness, approx 8 cm (3.1 in) from ECT sensor breakout toward G101 breakout

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S152 (4.3L)

Engine harness, approx 16 cm (6.3 in) from fuel injector breakout toward G103 breakout

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S152 (5.0L, 5.7L)

Engine harness, approx 4 cm (1.6 in) from fuel injector breakout toward G103 breakout

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S152 (7.4L)

Engine harness, approx 15 cm (5.9 in) from heated oxygen sensor (bank 2 sensor 1) breakout toward P101

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S215

IP harness, approx 4 cm (1.6 in) from radio breakout toward power antenna assembly breakout

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S249

LH body harness, approx 20 cm (7.9 in) from convenience center connector C202

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S400

LH body harness, approx 7 cm (2.8 in) from connector C404 breakout toward CHMSL connector C419 breakout

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S400 (Upfitter Provisions)

LH body harness, approx 7 cm (2.8 in) from connector C407 breakout toward connector C404 breakout

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S405

Rear A/C harness, approx 37 cm (14.6 in) from blower motor breakout toward blower motor relay breakout

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S412

Rear A/C harness, approx 30 cm (11.8 in) from blower motor relay breakout toward blower motor breakout

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S413

Rear A/C harness, approx 67 cm (26.4 in) from blower motor resistor connector toward blower motor breakout

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