C1231 Code: Meaning, Causes, and Symptoms | OBD2 Codes
C1231 – Steering Angle Sensor Circuit Malfunction
C1231 Possible Symptoms
Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)
C1231 Possible Causes
Faulty Steering Angle Sensor,Steering Angle Sensor harness is open or shorted,Steering Angle Sensor circuit poor electrical connection,Faulty Skid Control ECU
The Skid Control ECU inputs the steering sensor signal through the CAN communication. The Skid Control ECU sets the OBDII code when a malfunction occurs in the communication line with the steering sensor.