POWER STEERING SYSTEM, Diagnostic DTC:C1515/15, C1525/17

DTC Code DTC Name
C1515/15 Torque Sensor Zero Point Adjustment is not Initialized
C1525/17 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. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition Note
C1515/15 Torque Sensor Zero Point Adjustment is not Initialized Torque sensor zero point calibration has not been performed. - On Zero point calibration occurs There is no malfunction if this DTC is not output again after performing zero point calibration.
C1525/17 Rotation Angle Sensor Initialization Undone Rotation angle sensor initialization has not been performed. - On Rotation angle sensor initialization occurs There is no malfunction if this DTC is not output again after performing rotation angle sensor initialization.

CAUTION / NOTICE / HINT

Note


  • If the steering column assembly has been replaced, perform rotation angle sensor value initialization and torque sensor zero point calibration.

    Click here

  • If the power steering ECU assembly has been replaced, perform assist map writing, 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.

      Result
      Proceed to
      NEXT

    NEXT

  2. CHECK FOR DTC


    1. Calibrate the torque sensor zero point (step 1).

      Click here


      Chassis > EMPS > Utility
      Tester Display
      Torque Sensor Adjustment

    2. Check for DTCs (step 2).

      Click here


      Chassis > EMPS > Trouble Codes

      Tech Tips

      If DTCs are output, perform steps 1 and 2 two more times.

      Result
      Result Proceed to
      DTCs are still output after performing steering zero point calibration 3 times. A
      Normal system code is output. B

    B

    END

    A

  3. REPLACE POWER STEERING ECU ASSEMBLY


    1. Replace the power steering ECU assembly.

      Click here

      Result
      Proceed to
      NEXT

    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.

      Result
      Proceed to
      NEXT

    NEXT

  5. CHECK FOR DTC


    1. Calibrate the torque sensor zero point (step 1).

      Click here


      Chassis > EMPS > Utility
      Tester Display
      Torque Sensor Adjustment

    2. Check for DTCs (step 2).

      Click here


      Chassis > EMPS > Trouble Codes

      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.

      Result
      Result 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

    A

    REPLACE STEERING COLUMN ASSEMBLY Click here

    B

    PERFORM ROTATION ANGLE SENSOR VALUE INITIALIZATION AND ZERO POINT CALIBRATION AGAIN

    C

    END