POWER STEERING SYSTEM, Diagnostic DTC:C1516/16, C1526/18

DTC Code DTC Name
C1516/16 Torque Sensor Zero Point Adjustment Incomplete
C1526/18 Rotation Angle Sensor Initialization Incomplete

DESCRIPTION

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

DTC No. DTC Detection Condition Trouble Area
C1516/16 Torque sensor zero point calibration is incomplete due to the steering wheel being touched during calibration. There is no malfunction if this DTC is not output again after clearing the DTCs and torque sensor calibration value, and performing zero point calibration.
C1526/18 Rotation angle sensor value initialization is incomplete due to the steering wheel being touched during calibration. There is no malfunction if this DTC is not output again after clearing the DTCs and torque sensor calibration value, and performing rotation angle sensor value initialization.

CAUTION / NOTICE / HINT

Note


  • If the power steering ECU assembly has been replaced with a new one, perform assist map writing and rotation angle sensor value initialization torque sensor zero point calibration after performing the initialization of the torque sensor zero point value Click here.

  • If the steering column assembly has been replaced with a new one, perform rotation angle sensor value initialization torque sensor zero point calibration after performing the initialization of the torque sensor zero point value Click here.

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs (step 1) Click here.

    2. Initialize the rotation angle sensor value and calibrate the torque sensor zero point (step 2) Click here.

    3. Check for DTCs (step 3) Click here.

      Tech Tips

      If DTCs are output, perform steps 1 to 3 two more times.

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

    B

    END

    A

  2. REPLACE POWER STEERING ECU ASSEMBLY


    1. Replace the power steering ECU assembly Click here.


    NEXT

  3. CHECK FOR DTC


    1. Clear the DTCs (step 1) Click here.

    2. Initialize the rotation angle sensor value and calibrate the torque sensor zero point (step 2) Click here.

    3. Check for DTCs (step 3) Click here.

      Tech Tips

      If DTCs are output, perform steps 1 to 3 two more times.

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

    A

    REPLACE STEERING COLUMN ASSEMBLY Click here

    B

    END