Ford B1321 OBD-II Trouble Code Definition: B1321 Driver Door Ajar Circuit Short To Battery B1321 Ford OBD-II Trouble CodeDescription: OBD Trouble Code B1321 Driver door ajar circuit short to battery Sorry no other information,Please help us to improve,Any information is appreciated.Thanks. OBD Trouble Code B1321 A/C Low Side Temperature Sensor Fault Sorry no other information,Please help […]