VARIABLE GEAR RATIO STEERING SYSTEM CALIBRATION

DTC Code DTC Name
CALIBRATION

CAUTION / NOTICE / HINT

Note

Use this procedure to center the steering wheel if:


  • The steering actuator assembly has been replaced.

  • The steering control ECU has been replaced.

  • The steering column or steering intermediate shaft has been disconnected.

  • The steering wheel is still off-center after completing the steering angle sensor initialization.

PROCEDURE


  1. VGRS SYSTEM CALIBRATION PROCEDURE

    Result
    Proceed to
    WHEN USING SST CHECK WIRE
    WHEN USING INTELLIGENT TESTER

    WHEN USING INTELLIGENT TESTER

    FACE TIRES STRAIGHT AHEAD Click here

    WHEN USING SST CHECK WIRE

  2. FACE TIRES STRAIGHT AHEAD

    Note

    Drive the vehicle to confirm that the steering wheel is centered.

    Result
    Proceed to
    NEXT

    NEXT

  3. CHECK DTC


    1. Check for DTCs.

      Click here

      Result
      Result Proceed to
      DTC C1591/51 is not output A
      DTC C1591/51 is output B

    B

    GO TO STEP 5 Click here

    A

  4. PERFORM ACTUATOR ANGLE INITIALIZATION

    SST
    09843-18040

    Note

    If the procedures from *1 to *2 are not completed within 1 minute, or if errors are made during these procedures, perform the initialization again from the beginning.


    1. B001YJXE81
      *1 Front view of DLC3:

      Start the engine.

    2. Center the steering wheel.

    3. Using SST, connect terminals 12 (TS) and 4 (CG), and 13 (TC) and 4 (CG) of the DLC3.*1

    4. Disconnect SST from terminal 12 (TS) of the DLC3, and turn the steering wheel to the left 180° or more.

    5. Connect SST to terminal 12 (TS) of the DLC3.

    6. Disconnect SST from terminal 13 (TC) of the DLC3, and turn the steering wheel to the right 180° or more.

    7. Connect SST to terminal 13 (TC) of the DLC3.*2

      Tech Tips

      If the master warning light comes on, DTC C1591/51 is stored.

    8. Disconnect SST from the DLC3.

    9. Turn the engine switch off.

      Result
      Proceed to
      NEXT

    NEXT

  5. FACE TIRES STRAIGHT AHEAD


    1. Confirm that the steering wheel is centered when facing the tires straight ahead.

      Note

      Drive the vehicle to confirm that the steering wheel is centered.

      Result
      Result Proceed to
      Steering wheel is off-center A
      Steering wheel is centered B

    B

    GO TO STEP 9 Click here

    A

  6. UNLOCK STEERING ACTUATOR

    Note

    Make sure the engine is not running.


    1. Turn the engine switch off.

    2. Disconnect the cable from the negative (-) battery terminal.

    3. A01X7T5E04
      *a Rear view of wire harness connector: (to Steering Actuator )
      *b 7 (LV+)

      Disconnect the E80 connector from the steering actuator.

    4. Connect a jumper wire from terminal 7 (LV+) of the steering actuator to the positive (+) 12 V battery terminal and another jumper wire from terminal 16 (LG+) of the steering actuator to the negative (-) 12 V battery terminal.

      Note

      Do not apply voltage for more than 3 minutes.

      Result
      Proceed to
      NEXT

    NEXT

  7. STEERING CENTER ADJUSTMENT


    1. Center the steering wheel.

      Note

      If the centering of the spiral cable was not confirmed when the steering wheel was installed, confirm the centering of the spiral cable.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  8. LOCK STEERING ACTUATOR


    1. Disconnect the positive (+) and negative (-) 12 V battery jumper wires from the steering actuator.

    2. Connect the E80 connector to the steering actuator.

    3. Connect the cable to the negative (-) battery terminal.

    4. Turn the steering wheel approximately 3° to the left and right. Confirm that the reaction force can be felt.

      Note


      • If the above procedures are not followed correctly, a DTC will be stored. If a DTC is stored, perform the above procedures again and then check for DTCs.

      • Perform these procedures with the engine switch off.

      Result
      Proceed to
      NEXT

    NEXT

  9. ADJUST ACTUATOR ANGLE

    Tech Tips

    Activating and ending test mode will complete actuator angle adjustment.


    1. Make sure the engine switch is off.

      Note

      Do not touch the steering wheel during these procedures.

    2. B001YJXE80
      *1 Front view of DLC3:

      Using SST, connect terminals 12 (TS) and 4 (CG) of the DLC3.

      SST
      09843-18040

    3. Turn the engine switch on (IG).

    4. Confirm that "VGRS Test Mode" is displayed on the multi-information display when test mode is activated.

      Tech Tips

      Wait approximately 5 seconds.

    5. Turn the engine switch off.

    6. Disconnect SST from terminals 12 (TS) and 4 (CG) of the DLC3.

    7. Turn the engine switch on (IG) again.

      Result
      Proceed to
      NEXT

    NEXT

  10. CHECK MASTER WARNING LIGHT


    1. Confirm that the master warning light is off.

    2. Turn the engine switch off, then on (IG).

    3. Confirm that the master warning light is operating normally.

      Result
      Proceed to
      NEXT

    NEXT

  11. CHECK STEERING WHEEL OPERATION


    1. Start the engine.

    2. Perform the steering angle sensor initialization.

      Click here

    3. Turn the steering wheel from lock to lock and check that it rotates approximately 2.7 turns.

    4. Drive the vehicle and confirm that the steering wheel is centered.

      Result
      Proceed to
      NEXT

    NEXT

    END

  12. FACE TIRES STRAIGHT AHEAD

    Note

    Drive the vehicle to confirm that the steering wheel is centered.

    Result
    Proceed to
    NEXT

    NEXT

  13. PERFORM VGRS SYSTEM CALIBRATION


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the tester on.

    4. Enter the following menus: Chassis / VGRS / Utility / Steering Angle Adjust. Then, press "Next".

    5. Follow the instructions on the tester, and press "Next".

      Note

      Press the "Next" key even if DTC C15B4/71 is output.

    6. Follow the instructions on the tester, and press "Next".

    7. Follow the instructions on the tester, and press "Next".

      Note

      Ensure that the engine switch is off.

    8. Follow the instructions on the tester, and press "Next".

    9. Follow the instructions on the tester, and press "Next".

      Note

      If the centering of the spiral cable was not confirmed when the steering wheel was installed, confirm the centering of the spiral cable.

      Click here

    10. Follow the instructions on the tester, and press "Next".

      Note

      Do not touch the steering wheel during these procedures.

    11. Follow the instructions on the tester, and press "Next".

    12. Follow the instructions on the tester, and press "Next".

      Note

      Do not touch the steering wheel during these procedures.

    13. "NOW CALIBRATING" is displayed and the display switches automatically to the next screen.

      Note

      Do not touch the steering wheel during these procedures.

    14. "Steering Angle Adjust is complete." is displayed. Then, check that the VGRS system calibration is completed normally.

    15. Select "Exit" to return the display to the "MENU" screen.

      Result
      Proceed to
      NEXT

    NEXT

  14. CHECK MASTER WARNING LIGHT


    1. Confirm that the master warning light is off.

    2. Turn the engine switch off.

    3. Disconnect the intelligent tester from the DLC3.

    4. Turn the engine switch on (IG).

    5. Confirm that the master warning light is operating normally.

      Result
      Proceed to
      NEXT

    NEXT

  15. CHECK STEERING WHEEL OPERATION


    1. Start the engine.

    2. Perform the steering angle sensor initialization.

      Click here

    3. Turn the steering wheel from lock to lock and check that it rotates approximately 2.7 turns.

    4. Drive the vehicle and confirm that the steering wheel is centered.

      Result
      Proceed to
      NEXT

    NEXT

    END