DYNAMIC REAR STEERING SYSTEM CALIBRATION

Note


  • When replacing the DRS ECU (rear steering control ECU), perform neutral position memorization and motor rotation angle sensor calibration.

  • If the rear steering link assembly or rear suspension is removed and installed, replaced, or adjusted, after performing actuator calibration value initialization, perform neutral position memorization and motor rotation angle sensor calibration.


  1. PERFORM ACTUATOR CALIBRATION VALUE INITIALIZATION

    Note


    • When actuator calibration value initialization is performed, the actuator is forcibly activated. Therefore, raise the vehicle so that the rear wheels can be turned without any load.

    • When actuator calibration value initialization is performed, DTCs are also cleared.

    • If any VGRS system DTCs are stored, actuator calibration value initialization cannot be performed.


    1. Raise the vehicle and position the tires straight ahead.

    2. Turn the power switch off.

    3. Connect the GTS to the DLC3.

    4. Turn the power switch on (IG).

    5. Turn the GTS on.

    6. Enter the following menus: Chassis / DRS / Utility / DRS Off-center Correction.


      Chassis > DRS > Utility
      Tester Display
      DRS Off-center Correction

    7. Follow the GTS display and perform actuator calibration value initialization.

  2. PERFORM NEUTRAL POSITION MEMORIZATION AND MOTOR ROTATION ANGLE SENSOR CALIBRATION

    Note


    • When neutral position memorization and motor rotation angle sensor calibration is performed, the actuator is forcibly activated. Therefore, raise the vehicle so that the rear wheels can be turned without any load.

    • If DTCs other than C1B01 and C1B04 are stored, neutral position memorization and motor rotation angle sensor calibration cannot be performed.

    • If any VGRS system DTCs are stored, neutral position memorization and motor rotation angle sensor calibration cannot be performed.

    • Do not perform any other procedures during DRS neutral memorization and motor speed angle sensor calibration. Otherwise, external force may be applied to the rear wheels.


    1. After raising the vehicle, position the tires straight ahead and center the steering wheel.

    2. Change the shift state to park (P).

    3. Turn the power switch off.

    4. Connect the GTS to the DLC3.

    5. Turn the power switch on (IG).

    6. Turn the GTS on.

    7. Enter the following menus: Chassis / DRS / Utility / DRS Neutral Memorization.


      Chassis > DRS > Utility
      Tester Display
      DRS Neutral Memorization

    8. Follow the GTS display and perform neutral position memorization and motor rotation angle sensor calibration.