POWER STEERING SYSTEM CALIBRATION


  1. ASSIST MAP WRITING

    Note

    Perform assist map writing if the following condition occurs:

    The rack and pinion power steering gear assembly has been replaced.


    1. Turn the engine switch off.

    2. Connect the GTS to the DLC3.

    3. Turn the engine switch on (IG).

    4. Turn the GTS on.

    5. Enter the following menus: Chassis / EMPS / Utility / Signal Check.


      Chassis > EMPS > Utility
      Tester Display
      Signal Check

    6. Wait for at least 5 seconds.

    7. Check for DTCs.

      Click here


      Chassis > EMPS > Trouble Codes

      Tech Tips

      After writing the assist map, if DTC C1581 is output, perform the troubleshooting procedure for DTC C1581.

      Click here

  2. TORQUE SENSOR ZERO POINT CALIBRATION

    Note

    Perform torque sensor zero point calibration if any of the following conditions occur:


    • The rack and pinion power steering gear assembly has been replaced.

    • There is a difference in steering effort between turning left and right.


    1. Align the front wheels straight ahead and center the steering wheel.

    2. Turn the engine switch off.

    3. Connect the GTS to the DLC3.

    4. Turn the engine switch on (IG).

    5. Turn the GTS on.

    6. Enter the following menus: Chassis / EMPS / Utility / Torque Sensor Adjustment.


      Chassis > EMPS > Utility
      Tester Display
      Torque Sensor Adjustment

      Note


      • During the torque sensor zero point calibration the steering wheel will shudder.

      • Do not touch the steering wheel during the torque sensor zero point calibration.

    7. Check for DTCs.

      Click here


      Chassis > EMPS > Trouble Codes

      Note


      • When performing torque sensor zero point calibration, check that the DTC is normal after calibration is completed.

      • If DTC C1515, C1516 or C1534 is output, perform troubleshooting for the corresponding DTC.

        Click here