gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

With Air Conditioning|Page 8335 > < With Air Conditioning|Page 8333
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Blower Motor Resistor: Service and Repair
Without Air Conditioning

Main Unit (Front)

Blower Motor Resistor

REMOVE OR DISCONNECT

1. Negative battery cable. 
2. Roll instrument panel back.
3. Plenum tray.
4. Electrical connector.
5. Screws.
6. Resistor.

INSTALL OR CONNECT

NOTE: When installing resistor to the heater case, do not let the resistor coils contact each other. Improper system operation or vehicle damage could
result.

1. Resistor.
2. Tighten Screws to 1.9 Nm (17 lb in).
3. Electrical connector.
4. Plenum tray.
5. Roll instrument panel forward.
6. Negative battery cable.

-

Check circuit operation.

Rear Unit (Auxiliary)

With Air Conditioning|Page 8335 > < With Air Conditioning|Page 8333