Ford C1223 OBD-II Trouble Code Definition: C1223 Lamp Brake Warning Output Circuit Failure C1223 Ford OBD-II Trouble CodeDescription: OBD Trouble Code C1223 Brake lamp warning output circuit failure Sorry no other information,Please help us to improve,Any information is appreciated.Thanks. OBD Trouble Code C1223 Left Rear Wheel Speed Sensor Input Signal is 0 Sorry no other information,Please […]