P1673 Chevrolet Cooling Fan Relay Circuit Malfunction
Possible causes
– Faulty cooling fan relay
– Cooling fan relay harness is open or shorted
– Cooling fan relay circuit poor electrical connection
– Cooling fan relay harness is open or shorted
– Cooling fan relay circuit poor electrical connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– Radiator fan inoperative
– Engine overheating
– Radiator fan inoperative
– Engine overheating