VARIABLE GEAR RATIO STEERING SYSTEM VGRS System Suspends right after Engine Start

CAUTION / NOTICE / HINT

Note

When replacing the steering actuator assembly, perform actuator angle neutral point calibration and initialization after replacement.

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PROCEDURE


  1. CHECK FOR DTC (DYNAMIC REAR STEERING SYSTEM)


    1. Check for DTCs in the dynamic rear steering system.

      Click here


      Chassis > DRS > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      DTCs are output B

    B

    GO TO DYNAMIC REAR STEERING SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) Click here

    A

  2. CHECK FOR DTC


    1. Check for DTCs.

      Click here


      Chassis > VGRS > Trouble Codes
      Result
      Result Proceed to
      DTC is not output A
      DTC is output B

    B

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    A

  3. CUSTOMER PROBLEM ANALYSIS


    1. Confirm the conditions present when the VGRS temporarily stopped.

      Tech Tips

      When the steering torque is large, the actuator easily overheats. In this situation, the system is stopped to prevent the actuator from overheating.

      Result
      Result Proceed to
      The system temporarily stopped during normal driving. A
      The system temporarily stopped under harsh conditions such as when turning the steering wheel while the vehicle is stopped. B

    B

    CHECK VGRS SYSTEM Click here

    A

  4. CHECK STEERING EFFORT


    1. Check the steering torque when the steering wheel is turned with the vehicle stopped.

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      OK
      The steering torque is normal.

      Tech Tips

      When the power steering system has failed, the system is stopped to protect the system when the load torque is large.

      Result
      Proceed to
      OK
      NG

    NG

    GO TO POWER STEERING SYSTEM (PROBLEM SYMPTOMS TABLE) Click here

    OK

  5. CUSTOMER PROBLEM ANALYSIS


    1. Check if the system stops repeatedly when steering the vehicle.

      OK
      The system does not stop repeatedly.

      Tech Tips

      After the power switch is turned on (IG) and the steering wheel is operated, an initial check of the lock is performed. When operating the steering wheel during the initial check, VGRS operation may be stopped, but operation is resumed again quickly.

      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

    REPLACE STEERING ACTUATOR ASSEMBLY Click here

  6. CHECK VGRS SYSTEM


    1. Operate the steering wheel and check that the system recovers.

      Result
      Result Proceed to
      The system recovers when the steering wheel is operated. A
      The system recovers when the steering wheel is not operated. B

    A

    END

    B

    REPLACE STEERING ACTUATOR ASSEMBLY Click here