Possible causes – Fuel Pump Control Module (FPCM) harness is open or shorted– Fuel Pump Control Module (FPCM) circuit poor electrical connection– Faulty dropping resistor– Faulty Fuel Pump Control Module (FPCM) When is the code detected? An improper voltage signal
Possible causes – Fuel Pump Control Module (FPCM) harness is open or shorted– Fuel Pump Control Module (FPCM) circuit poor electrical connection– Faulty dropping resistor– Faulty Fuel Pump Control Module (FPCM) When is the code detected? An improper voltage signal
Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1220 Information for specific makes P1220 BUICKP1220 CADILLACP1220 CHEVROLETP1220 FORDP1220 GMCP1220 NISSANP1220 INFINITI
BUICK Technical Service Bulletins for P1220 code 2004 BUICK RAINIER ELECTRICAL SYSTEM
CHEVROLET Technical Service Bulletins for P1220 code 2002 CHEVROLET TRAILBLAZER ELECTRICAL SYSTEM 2003 CHEVROLET TRAILBLAZER ELECTRICAL SYSTEM 2004 CHEVROLET TRAILBLAZER ELECTRICAL SYSTEM
GMC Technical Service Bulletins for P1220 code 2002 GMC ENVOY ELECTRICAL SYSTEM 2003 GMC ENVOY ELECTRICAL SYSTEM 2004 GMC ENVOY ELECTRICAL SYSTEM
P1220 CADILLAC – Throttle Position Sensor 2 Circuit
P1220 FORD – Series Throttle Control Fault