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Home >> Toyota >> 2011 >> Matrix Base, Standard >> Repair and Diagnosis (Single Page) >> Steering >> Power Steering >> Power Steering System (Diagnostic Codes (C1511 - U0129) & Circuit Tests) >> Power Steering System >> DTC C1516: Torque Sensor Zero Point Adjustment Incomplete; DTC C1526: Rotation Angle Sensor Initialization Incomplete >> Procedure
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DTC C1516: Torque Sensor Zero Point Adjustment Incomplete; DTC C1526: Rotation Angle Sensor Initialization Incomplete: Procedure

  1. CLEAR DTC 
    1. Clear the DTCs. Refer to DTC CHECK / CLEAR .

    NEXT: Go to next step 

  2. 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 

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

      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 1 or 2 times*2. B
      Normal system code is output. C

      HINT: 

      • *1: The power steering ECU must be replaced if DTC C1516 or C1526 is still output even after rotation angle sensor value initialization and torque sensor zero point calibration are performed 3 times.
      • *2: Perform rotation angle sensor value initialization and torque sensor zero point calibration again if DTC C1516 or C1526 is still output even after the calibration is performed 1 or 2 times.

    B → See step   9 

    C → END 

    A: Go to next step 

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

    NEXT: Go to next step 

  5. CLEAR DTC 
    1. Clear the DTCs. Refer to DTC CHECK / CLEAR .

    NEXT: Go to next step 

  6. 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 

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

      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 2 times*2. B
      Normal system code is output. C

      HINT: 

      • *1: The steering column assembly must be replaced if DTC C1516 or C1526 is still output even after rotation angle sensor value initialization and torque sensor zero point calibration are performed 3 times.
      • *2: Perform rotation angle sensor value initialization and torque sensor zero point calibration again if DTC C1516 or C1526 is still output even after calibration is performed 2 times.
      NOTE:

      If the steering column is replaced, clear the rotation angle sensor calibration value, initialize the rotation angle sensor value, and calibrate the torque sensor zero point. Refer to CALIBRATION .

    B → See step   9 

    C → END 

    A → See step   8 

  8. REPLACE STEERING COLUMN. Refer to  REMOVAL 
  9. PERFORM ROTATION ANGLE SENSOR INITIALIZATION AND TORQUE SENSOR ZERO POINT CALIBRATION. Refer to  CALIBRATION