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Home >> Lexus >> 2009 >> IS F >> Repair and Diagnosis (Single Page) >> Steering >> Manual Steering >> Power Steering (Diagnostic Codes & Symptom Tests) >> Power Steering System >> DTC C1516: Torque Sensor Zero Point Adjustment Incomplete; DTC C1526: Rotation Angle Sensor Initialization Incomplete >> Procedure

DTC C1516: Torque Sensor Zero Point Adjustment Incomplete; DTC C1526: Rotation Angle Sensor Initialization Incomplete: Procedure

  1. CLEAR DTC 

    NEXT: Go to next step 

  2. INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT 
    1. Initialize the rotation angle sensor 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

      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 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 assembly must be replaced if DTCs are still output even after initialize the rotation angle sensor and calibrate the torque sensor zero point.
      • *2: Perform the rotation angle sensor initialization and torque sensor zero point calibration again if DTCs are still output even after the initialization and calibration is performed 1 or 2 times.

    C → END 

    B → See step   9 

    A: Go to next step 

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

    NEXT: Go to next step 

  5. CLEAR DTC 

    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

      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 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 power steering gear assembly must be replaced if DTCs are still output even after initialize the rotation angle sensor and calibrate the torque sensor zero point.
      • *2: Perform the rotation angle sensor initialization and torque sensor zero point calibration again if DTCs are still output even after the initialization and calibration is performed 2 times.
      NOTE:

      If replacing the power steering gear assembly, clear the rotation angle sensor calibration value, initialize the rotation angle sensor value, and calibrate the torque sensor zero point. Refer to CALIBRATION .

    C → END 

    B → See step   9 

    A → See step   8 

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