C12E4 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C12E4 – ABS Sensor Reference Output Circuit


C12E4 Possible Symptoms


Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)


C12E4 Possible Causes


Faulty ABS Sensor Reference,ABS Sensor Reference harness is open or shorted,ABS Sensor Reference circuit poor electrical connection


C12E4 Description


The Electronic Brake Control Module (EBCM) monitors the ABS Sensor Reference. The EBCM sets the OBDII code when the ABS Sensor Reference is not to factory specifications.