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There is a temperature sensor in the motor. When it gets hot enough it completes a circuit and causes a relay to close and turns the fan on. There is power to the fan all the time, the sensor and relay supply the ground for the fan Engine cools down, the sensor opens and shuts the fan off.
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What are P0480 and P0633 codes on a Chrysler Town and Country?
P0480 is Cooling Fan 1 control circuit malfunction.Possible causes.- Faulty fan control relay- Fan control relay harness is open or shorted- Fan control relay circuit poor electrical connection- Faulty cooling fan 1- Fan cooling fan harness is open or shorted- Fan cooling fan circuit poor electrical connectionP0633 is SKIM key not programmed in computer.Possible Causes.- SKIM module must be programmed into ECM- SKIM module defective
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where is my cooling fan relay controll circuit located in a 1997 Chevy lumina, 3.1 engine
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