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.