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 assembly outputs these DTCs when it determines that rotation angle sensor 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 power steering ECU assembly has been replaced with a new one, perform rotation angle sensor initialization and torque sensor zero point calibration Click here.

  • If the electric power steering column sub-assembly or power steering motor assembly has been replaced, perform rotation angle sensor initialization and torque sensor zero point calibration Click here.

PROCEDURE


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


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

      Tech Tips


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

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


    B

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

    C

    END

    A

  3. REPLACE POWER STEERING ECU ASSEMBLY


    1. Replace the power steering ECU assembly Click here.


    NEXT

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


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


    NEXT

  5. CHECK FOR DTC


    1. Check for DTCs Click here.

      Result
      Condition Proceed to
      DTC C1515 are still output after performing rotation angle sensor initialization and steering zero point calibration 3 times*1. A
      DTC C1525 are still output after performing rotation angle sensor initialization and steering zero point calibration 3 times*2. B
      DTCs are still output even after performing rotation angle sensor initialization and steering zero point calibration twice*3. C
      Normal system code is output. D

      Tech Tips


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

      • *2: The electric power steering column sub-assembly must be replaced if DTC C1525 is still output even after the rotation angle sensor initialization and torque sensor zero point calibration is performed 3 times.

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


    B

    REPLACE POWER STEERING MOTOR ASSEMBLY Click here

    C

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

    D

    END

    A

    REPLACE ELECTRIC POWER STEERING COLUMN SUB-ASSEMBLY Click here