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Home >> Scion >> 2012 >> xB Standard Trans >> Repair and Diagnosis (Single Page) >> Steering >> Power Steering >> Power Steering System (Diagnostic Codes & Symptom Tests) >> Power Steering System >> DTC C1515: Torque Sensor Zero Point Adjustment Undone; DTC C1525: Rotation Angle Sensor Initialization Undone >> Procedure

DTC C1515: Torque Sensor Zero Point Adjustment Undone; DTC C1525: Rotation Angle Sensor Initialization Undone: Procedure

  1. INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT 
    1. Initialize the rotation angle sensor value and calibrate the torque sensor zero point. Refer to CALIBRATION .

    NEXT: Go to next step 

  2. RECONFIRM DTC 
    1. Check for DTCs. Refer to DTC CHECK / CLEAR .
      RESULT

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

    B → END 

    A: Go to next step 

  3. INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT 
    1. Initialize the rotation angle sensor value and calibrate the torque sensor zero point again. Refer to CALIBRATION .

    NEXT: Go to next step 

  4. RECONFIRM DTC 
    1. Check for DTCs. Refer to DTC CHECK / CLEAR .
      RESULT

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

    B → END 

    A: Go to next step 

  5. INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT 
    1. Initialize the rotation angle sensor value and calibrate the torque sensor zero point again. Refer to CALIBRATION .

    NEXT: Go to next step 

  6. RECONFIRM DTC 
    1. Check for DTCs. Refer to DTC CHECK / CLEAR .
      RESULT

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

      HINT: 

      Replace the power steering ECU if DTCs are still output after performing rotation angle sensor value initialization and steering zero point calibration 3 times.

    B → END 

    A: Go to next step 

  7. REPLACE POWER STEERING ECU 
    1. Replace the power steering ECU. Refer to REMOVAL .

    NEXT: Go to next step 

  8. INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT 
    1. Initialize the rotation angle sensor value and calibrate the torque sensor zero point. Refer to CALIBRATION .

    NEXT: Go to next step 

  9. RECONFIRM DTC 
    1. Check for DTCs. Refer to DTC CHECK / CLEAR .
      RESULT

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

    B → END 

    A: Go to next step 

  10. INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT 
    1. Initialize the rotation angle sensor value and calibrate the torque sensor zero point again. Refer to CALIBRATION .

    NEXT: Go to next step 

  11. RECONFIRM DTC 
    1. Check for DTCs. Refer to DTC CHECK / CLEAR .
      RESULT

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

    B → END 

    A: Go to next step 

  12. INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT 
    1. Initialize the rotation angle sensor value and calibrate the torque sensor zero point again. Refer to CALIBRATION .

    NEXT: Go to next step 

  13. RECONFIRM DTC 
    1. Check for DTCs. Refer to DTC CHECK / CLEAR .
      RESULT

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

      HINT: 

      Replace the steering column assembly if DTCs are still output after performing rotation angle sensor value initialization and steering zero point calibration 3 times.

      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. Refer to CALIBRATION .

    B → END 

    A → See step   14 

  14. REPLACE STEERING COLUMN ASSEMBLY. Refer to  REMOVAL 
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