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Home >> Lexus >> 2008 >> LS 600hL >> Repair and Diagnosis >> Steering >> Manual Steering >> Power Steering >> Diagnostic Trouble Code Chart >> DTC C1516 Torque Sensor Zero Point Adjustment Incomplete; DTC C1526 Rotation Angle Sensor Initialization Incomplete >> Inspection Procedure

Inspection Procedure

  1. CLEAR DTC 
    1. Clear the DTC (see DTC CHECK / CLEAR  ).
  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 (see CALIBRATION  )
  3. RECONFIRM DTC 
    1. Check for DTCs (see DTC CHECK / CLEAR  ).

      Result 

      RESULT CHART

      Result Proceed to
      DTC is output even though rotation angle sensor value initialization and steering zero point calibration have been performed 3 times A
      DTC is not output B
      NOTE: If a DTC is output even though the rotation angle sensor value initialization and steering zero point calibration have been performed, confirm the procedure again, and perform the calibration and initialization 3 times.

      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 

  4. REPLACE POWER STEERING ECU 
    1. Replace the power steering ECU (see REMOVAL  )
  5. CLEAR DTC 
    1. Check for DTCs (see DTC CHECK / CLEAR  )
  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 (see CALIBRATION  )
  7. RECONFIRM DTC 
    1. Check for DTCs (see DTC CHECK / CLEAR  )

      Result 

      RESULT CHART

      Result Proceed to
      DTC is not output A
      DTC is output even though rotation angle sensor value initialization and steering zero point calibration have been performed 3 times B
      NOTE:
      • If a DTC is output even though the rotation angle sensor value initialization and steering zero point calibration have been performed, confirm the procedure again, and perform the calibration and initialization 3 times.
      • If replacing the power steering gear, clear the rotation angle sensor calibration value, initialize the rotation angle sensor value, and calibrate the torque sensor zero point (see CALIBRATION  ).

      HINT

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

    B: REPLACE POWER STEERING GEAR ASSEMBLY  (See REMOVAL  )

    A: END