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Calibration [09/2014 - ]: Procedure

  1. VGRS SYSTEM CALIBRATION PROCEDURE 

    Result

    Proceed to
    WHEN USING SST CHECK WIRE
    WHEN USING TECHSTREAM

    Result: 

    WHEN USING TECHSTREAM 

    See step  12

    Result: 

    WHEN USING SST CHECK WIRE 

    See step  2

  2. FACE TIRES STRAIGHT AHEAD 
    NOTE:

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

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  3

  3. CHECK DTC 
    1. Check for DTCs (Refer to DTC CHECK / CLEAR [09/2014 - ] ).

      Result

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

    Result: 

    B 

    See step  5

    Result: 

    A 

    See step  4

  4. PERFORM ACTUATOR ANGLE INITIALIZATION 
    NOTE:

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

    1. Turn the engine switch off.
    2. Using SST, connect terminals 12 (TS) and 4 (CG) of the DLC3.*1
      GTY530507Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of DLC3
      • SST: 09843-18040 
    3. Start the engine.
    4. Center the steering wheel.
    5. Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.
    6. Disconnect SST from terminal 12 (TS) of the DLC3 and turn the steering wheel to the left 180° or more.
    7. Connect SST to terminal 12 (TS) of the DLC3.
    8. Disconnect SST from terminal 13 (TC) of the DLC3 and turn the steering wheel to the right 180° or more.
    9. Connect SST to terminal 13 (TC) of the DLC3.*2

      HINT: 

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

    10. Disconnect SST from the DLC3.
    11. Turn the engine switch off.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  5

  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

    Result: 

    B 

    See step  9

    Result: 

    A 

    See step  6

  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. Disconnect the steering actuator assembly connector.
      GTY667624Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to Steering Actuator Assembly)
    4. Connect a jumper wire from terminal 7 (LV+) of the steering actuator assembly to the positive (+) 12 V battery terminal and another jumper wire from terminal 16 (LG+) of the steering actuator assembly to the negative (-) 12 V battery terminal.
      NOTE:

      Do not apply voltage for more than 3 minutes.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  7

  7. STEERING CENTER ADJUSTMENT 
    1. Center the steering wheel.
      NOTE:

      If the centering of the spiral cable sub-assembly was not confirmed when the steering wheel was installed, confirm the centering of the spiral cable (Refer to INSTALLATION [09/2014 - 10/2015] , or refer to INSTALLATION [10/2015 - 09/2017] , or refer to INSTALLATION [09/2017 - ] ).

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  8

  8. LOCK STEERING ACTUATOR 
    1. Disconnect the positive (+) and negative (-) 12 V battery jumper wires from the steering actuator assembly.
    2. Connect the connector to the steering actuator assembly.
    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:

      Perform these procedures with the engine switch off.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  9

  9. ADJUST ACTUATOR ANGLE 

    HINT: 

    Activating and ending test mode completes the actuator angle adjustment.

    1. Make sure the engine switch is off.
      NOTE:

      Do not touch the steering wheel during these procedures.

    2. Using SST, connect terminals 12 (TS) and 4 (CG) of the DLC3.
      GTY531421Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of 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.

      HINT: 

      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

    Result: 

    NEXT 

    See step  10

  10. CHECK MASTER WARNING LIGHT 
    1. Confirm that the master warning light is off.
    2. Turn the engine switch off, and then on (IG).
    3. Confirm that the master warning light is operating normally.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  11

  11. CHECK STEERING WHEEL OPERATION 
    1. Start the engine.
    2. Perform the steering sensor initialization (Refer to INITIALIZATION [09/2014 - ] ).
    3. Drive the vehicle and confirm that the steering wheel is centered.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    END 

  12. FACE TIRES STRAIGHT AHEAD 
    NOTE:

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

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  13

  13. PERFORM VGRS SYSTEM CALIBRATION 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Chassis / VGRS / Utility / Steering Angle Adjust.
    5. According to the display on the Techstream, perform calibration.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  14

  14. CHECK MASTER WARNING LIGHT 
    1. Confirm that the master warning light is off.
    2. Turn the engine switch off.
    3. Disconnect the Techstream from the DLC3.
    4. Turn the engine switch on (IG).
    5. Confirm that the master warning light is operating normally.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  15

  15. CHECK STEERING WHEEL OPERATION 
    1. Start the engine.
    2. Perform the steering sensor initialization (Refer to INITIALIZATION [09/2014 - ] ).
    3. Drive the vehicle and confirm that the steering wheel is centered.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    END 

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