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Stanley Herrera
Stanle ... 8/4/2010
2004 Chevrolet Colorado LS 5Cyl3.5L - Body & Interior
I changed out my blower motor and resistor and it did not work, Can it possible be my fan switch? My fuses are all good,
1 Answer
  • HouseCallAuto
    HouseCallAuto 8/5/2010

    1. Verify blower motor has good battery voltage to it on the Brown wire.

    2. At the dash switch the Black wire is a ground and the fan switch will ground the Orange wire to run the blower on high speed.

    3. Add a ground to the Black wire, if now runs at all speeds, repair poor ground.
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