1996 CADILLAC SEVILLE
200,000 MILES
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Heater fan doesnt work even after replacing motor has signal out of the motor on a grey wire has power into and ground out of the motor. could there be a heater switch in the coolant lines and if so where
Nov 9, 2012 at 1:56 AM
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ASEMASTER6371
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it is a ground controlled motor. that why both wires are hot. the climate control module controls the blower. have it checked for codes to narrow the area of failure

Roy
Nov 9, 2012 at 3:39 AM