Possible causes – Faulty Cooling Fan Relay– Cooling Fan Relay harness is open or shorted– Cooling Fan Relay circuit poor electrical component Symptoms – Engine Light ON (or Service Engine Soon Warning Light) – Cooling Fan not working P1641 BUICK
Possible causes – Faulty Cooling Fan Relay– Cooling Fan Relay harness is open or shorted– Cooling Fan Relay circuit poor electrical component Symptoms – Engine Light ON (or Service Engine Soon Warning Light) – Cooling Fan not working P1641 CHEVROLET
Possible causes – Faulty Cooling Fan Relay– Cooling Fan Relay harness is open or shorted– Cooling Fan Relay circuit poor electrical component Symptoms – Engine Light ON (or Service Engine Soon Warning Light) – Cooling Fan not working P1641 CADILLAC
Possible causes – Faulty Cooling Fan Relay– Cooling Fan Relay harness is open or shorted– Cooling Fan Relay circuit poor electrical component Symptoms – Engine Light ON (or Service Engine Soon Warning Light) – Cooling Fan not working P1641 SATURN
Possible causes – Faulty Cooling Fan Relay– Cooling Fan Relay harness is open or shorted– Cooling Fan Relay circuit poor electrical component Symptoms – Engine Light ON (or Service Engine Soon Warning Light) – Cooling Fan not working P1641 PONTIAC
Possible causes – Faulty Cooling Fan Relay– Cooling Fan Relay harness is open or shorted– Cooling Fan Relay circuit poor electrical component Symptoms – Engine Light ON (or Service Engine Soon Warning Light) – Cooling Fan not working P1641 GMC
Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1641 Information for specific makes P1641 BUICKP1641 DODGEP1641 FORDP1641 HONDAP1641 HYUNDAIP1641 CHEVROLETP1641 CADILLACP1641 GMCP1641 PONTIACP1641 SATURN
P1641 DODGE – A/D Perf
P1641 FORD – Fuel Pump Primary Circuit Failure
P1641 HONDA – ACTTRQ Motor Torque Signal Circuit High Input
P1641 HYUNDAI – VI Motor Open/Short Coil2