Question about 2001 Chevrolet Silverado 1500

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All the speeds on the heater blower don't work. Where do I look? 2001 Chevy silverado 1500. Thank you.

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The speed controller on the dash must have one off the selectors faulty. so use a meter to checck the input voltage which is coming in and then the selector switching voltage to the motor coil winding. If voltage ispresent in the switched output then the motor winding can be faulty.
So check under th dash and trry to see if you can test without removing the whole unit.Use a good light to probe , use a multimeter in DC range.

Posted on Aug 24, 2010

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