Possible causes – Faulty cooling fan relay– 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
Possible causes – Faulty cooling fan relay– 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
Possible causes – Faulty cooling fan relay– 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
P1673 BUICK – Engine Hot Lamp Control Circuit
P1673 CADILLAC – Engine Hot Lamp Control Circuit
P1673 CHEVROLET – Engine Hot Lamp Control Circuit
P1673 GMC – Engine Hot Lamp Control Circuit