C0231 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C0231 – Engine Control Module Failure


C0231 Possible Symptoms


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


C0231 Possible Causes


Faulty Engine Control Module (ECM),Engine Control Module (ECM) harness is open or shorted,Engine Control Module (ECM) circuit poor electrical connection


C0231 Description


The Anti-Lock Brake System (ABS) Module monitors the Engine Control Module (ECM) signal. The ABS Module sets the OBDII code when the ECM signal is not to factory specifications.