C1439 – Steering Angle Sensor Initialization Incomplete

C1439 Possible Symptoms

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

C1439 Possible Causes

Faulty Steering Angle Sensor,Steering Angle Sensor harness is open or shorted,Steering Angle Sensor circuit poor electrical connection,Yaw Rate and Acceleration Sensor (for separate type),Yaw Rate and Acceleration Sensor (Airbag sensor assembly) (for built-in type)

C1439 Description

The Skid Control ECU acquires the steering angle sensor zero point every time the ignition switch is turned to ON and the vehicle is driven at 50 km/h (31 mph) or more for approximately 30 seconds. The Skid Control ECU also stores previous zero points. The Skid Control ECU Module monitors the Steering Angle Sensor. The Skid Control ECU sets the OBDII code when the Steering Angle Sensor is not to factory specifications.