GM Service Manual Online
For 1990-2009 cars only

Heater Blower Controls Components for GMC Truck Yukon - 2WD 1999

Name

Location

Locator View

Connector End View

Auxiliary Blower Motor

Behind the right rear wheelhousing

HVAC Component Views in HVAC Systems with A/C - Manual

HVAC Connector End Views in HVAC Systems with A/C - Manual

Auxiliary Blower Resistor

Behind the right rear wheelhousing

HVAC Component Views in HVAC Systems with A/C - Manual

HVAC Connector End Views in HVAC Systems with A/C - Manual

Auxiliary Blower Motor Relay, High

On the top of the auxiliary HVAC plenum, near the right rear wheelhousing

HVAC Component Views in HVAC Systems with A/C - Manual

HVAC Connector End Views in HVAC Systems with A/C - Manual

Auxiliary Blower Motor Relay, Low

On the top of the auxiliary HVAC plenum, near the right rear wheelhousing

HVAC Component Views in HVAC Systems with A/C - Manual

HVAC Connector End Views in HVAC Systems with A/C - Manual

Auxiliary Blower Motor Relay, Medium

On the top of the auxiliary HVAC plenum, near the right rear wheelhousing

HVAC Component Views in HVAC Systems with A/C - Manual

HVAC Connector End Views in HVAC Systems with A/C - Manual

Auxiliary Heater Control Switch

Center of IP, left of the Steering Column

Heater Blower Controls Component Views

Heater Blower Controls Connector End Views

Blower Motor, Front

To the right of the IP, behind the IP compartment box

HVAC Component Views in HVAC Systems with A/C Manual

HVAC Connector End Views in HVAC Systems with A/C - Manual

Blower Motor Relay, High

Behind the IP compartment box, on the HVAC plenum

HVAC Component Views in HVAC Systems with A/C Manual

HVAC Connector End Views in HVAC Systems with A/C - Manual

Blower Motor Resistor

Behind the IP compartment box, on the HVAC plenum

HVAC Component Views in HVAC Systems with A/C Manual

HVAC Connector End Views in HVAC Systems with A/C - Manual

Convenience Center

Under the left side of the IP, on the bulkhead

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

HVAC Control Module

Part of the heater controls, in the center of the IP, under the radio

HVAC Component Views in HVAC Systems with A/C Manual

HVAC Connector End Views in HVAC Systems with A/C - Manual

IP Fuse Block

To the left of the IP, near the left front door jamb switch

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Underhood Fuse Block

In the left rear side of the engine compartment, on the fender

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

C100

IP harness inline to the Engine harness, in the left rear side of the engine compartment, at the bulkhead

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C205

At the convenience center

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C203

IP harness inline to the the front HVAC harness, behind the right side of the IP, near the heater motor, in foam wrap

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C230

IP harness inline to the HVAC harness, above the HVAC evaporator housing

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C300

Front to Rear Body harness inline to Auxiliary A/C switches, in the overhead console

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C400

At the right rear of the vehicle, above the auxiliary blower motor

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C401

At the right rear of the vehicle, above the auxiliary blower motor

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G200

Behind the left side of the IP, below the fuse block, on the tie bar

Power and Grounding Component Views in Wiring Systems

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G202

On the right side of the instrument panel, mounted to the HVAC plenum bracket

Power and Grounding Component Views in Wiring Systems

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G400 (Utility/Suburban)

On the right side B pillar, near the door striker

Power and Grounding Component Views in Wiring Systems

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P101

In the right rear side of the engine compartment, at the bulkhead

Harness Routing Views in Wiring Systems

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S110 (5.0L, 5.7L)

Engine harness, approx. 23 cm (9 in) from EBCM breakout, toward taillamp harness

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S110 (6.5L)

Engine harness, approx. 4 cm (1.5 in) from the EBCM breakout, towards the Taillamp harness breakout

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S110 (7.4L-A/T)

Engine harness, approx. 26 cm (10 in) from EBCM breakout, near taillamp harness breakout

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S204

IP harness, approx. 10 cm (4 in) from C100, towards Data Link Connector (DLC)

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S218

IP harness, approx. 16 cm (6 in) from inflatable restraint switch breakout

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S268

IP harness, approx. 7 cm (2.5 in) into the HVAC Control Switch harness breakout

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S244

HVAC Harness, approx. 8 cm (3 in) from recirculation door breakout, toward high blower motor relay

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S400 (w/Auxiliary Heater)

Auxiliary A/C harness, approx. 17 cm (6.5 in) from blower motor Relays, toward blower motor

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S401 (w/Auxiliary Heater)

Auxiliary HVAC harness, approx. 13 cm (5 in) from blower motor relays breakout, toward blower motor

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S403 (w/Auxiliary Heater)

Auxiliary HVAC harness, approx. 7 cm (2.5 in) from blower motor resistor breakout, toward blower motor

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S410 (2-door Utility)

Front-to-rear body harness, approx. 37 cm (14.5 in) from RR door jamb switch breakout, toward RH door speaker breakout

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S410 (4-Door Utility/Suburban)

Front-to-rear body harness, approx. 12 cm (4.5 in) from RR door speaker breakout, toward RR door jamb breakout

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