Having problems with your 2005 Chevrolet Impala LS ?
Cooling fan 2ctrl ckt malfunction - 2005 Chevrolet Impala LS
This could be the module mounted to the fan assembly attached to the radiator, a faulty relay, or a wiring issue. I would first begin by finding the proper relay in the battery junction box located by using the vehicle service manual. Remove the relay and jump the circuit with a 14 guage 30 amp fused wire. If the fan operates then OHM the relay and replace if bad. If the fan does not operate and the relay is good then chances are the fan module/wiring is the culprit.
Repair Help & Product Troubleshooting for 2005 Chevrolet Impala LS
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