POWER STEERING SYSTEM, Diagnostic DTC:C1515, C1525

DTC Code DTC Name
C1515 Torque Sensor Zero Point Adjustment Undone
C1525 Rotation Angle Sensor Initialization Undone

DESCRIPTION

These DTCs do not indicate a malfunction. The power steering ECU outputs these DTCs when it determines that the rotation angle sensor value initialization and torque sensor zero point calibration have not been performed.

DTC No. DTC Detection Condition Trouble Area
C1515 This DTC is detected when torque sensor zero point calibration has not been performed. There is no malfunction if this DTC is not output again after performing zero point calibration.
C1525 This DTC is detected when rotation angle sensor value initialization has not been performed. There is no malfunction if this DTC is not output again after performing rotation angle sensor value initialization.

INSPECTION PROCEDURE

Note

If the steering column assembly or power steering ECU has been replaced, perform the rotation angle sensor value initialization and torque sensor zero point calibration Click here.

PROCEDURE


  1. INITIALIZE ROTATION ANGLE SENSOR VALUE AND CALIBRATE TORQUE SENSOR ZERO POINT


    1. Initialize the rotation angle sensor value and calibrate the torque sensor zero point Click here.


    NEXT

  2. CHECK FOR DTC


    1. Check for DTCs Click here.

      Result
      Condition Proceed to
      DTCs are still output after performing rotation angle sensor value initialization and steering zero point calibration 3 times*1. A
      DTCs are still output even after performing rotation angle sensor value initialization and steering zero point calibration once or twice*2. B
      Normal system code is output. C

      Tech Tips


      • *1: The power steering ECU must be replaced if DTC C1515 or C1525 is still output even after the rotation angle sensor value initialization and torque sensor zero point calibration is performed 3 times.

      • *2: Perform the rotation angle sensor value initialization and torque sensor zero point calibration again if DTC C1515 or C1525 is still output even after the rotation angle sensor value initialization and calibration is performed once or twice.


    B

    PERFORM ROTATION ANGLE SENSOR VALUE INITIALIZATION AND ZERO POINT CALIBRATION AGAIN Click here

    C

    END

    A

  3. REPLACE POWER STEERING ECU


    1. Replace the power steering ECU Click here.


    NEXT

  4. INITIALIZE ROTATION ANGLE SENSOR VALUE AND CALIBRATE TORQUE SENSOR ZERO POINT


    1. Initialize the rotation angle sensor value and calibrate the torque sensor zero point Click here.


    NEXT

  5. CHECK FOR DTC


    1. Check for DTCs Click here.

      Result
      Condition Proceed to
      DTCs are still output after performing rotation angle sensor value initialization and steering zero point calibration 3 times*1. A
      DTCs are still output even after performing rotation angle sensor value initialization and steering zero point calibration twice*2. B
      Normal system code is output. C

      Tech Tips


      • *1: The steering column assembly must be replaced if DTC C1515 or C1525 is still output even after the rotation angle sensor value initialization and torque sensor zero point calibration is performed 3 times.

      • *2: Perform the rotation angle sensor value initialization and torque sensor zero point calibration again if DTC C1515 or C1525 is still output even after the rotation angle sensor value initialization and calibration is performed twice.

      Note

      If replacing the steering column assembly, clear the rotation angle sensor calibration value, initialize the rotation angle sensor value, and calibrate the torque sensor zero point Click here.


    B

    PERFORM ROTATION ANGLE SENSOR VALUE INITIALIZATION AND ZERO POINT CALIBRATION AGAIN Click here

    C

    END

    A

    REPLACE STEERING COLUMN ASSEMBLY Click here