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Home >> Lexus >> 2017 >> IS 350 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 85 (Variable Gear Ratio Steering System - Diagnostics - Introduction) >> Variable Gear Ratio Steering System >> How To Proceed With Troubleshooting [04/2013 - 10/2016] >> Procedure

How To Proceed With Troubleshooting [04/2013 - 10/2016]: Procedure

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  1. VEHICLE BROUGHT TO WORKSHOP 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  2

  2. INSPECT BATTERY VOLTAGE 

    Standard Voltage

    11 to 14 V

    If the voltage is below 11 V, recharge or replace the battery before proceeding.

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  3

  3. CHECK CAN COMMUNICATION SYSTEM* 
    1. Use the Techstream to check if the CAN communication system is functioning normally.

      Refer to DIAGNOSIS SYSTEM [04/2013 - 06/2014] , or refer to DIAGNOSIS SYSTEM [06/2014 - 08/2015] , or refer to DIAGNOSIS SYSTEM [08/2015 - 10/2016]

      Result

      Result Proceed to
      CAN DTCs are not output. A
      CAN DTCs are output. B

    Result: 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - 10/2016] 

    Result: 

    See step  4

  4. CHECK FOR DTCs* 
    1. Check for DTCs.

      Refer to DTC CHECK / CLEAR [04/2013 - 10/2016] 

      Chassis > VGRS > Trouble Codes 

    2. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [04/2013 - 10/2016] 

      Chassis > VGRS > Clear DTCs 

    3. Recheck for DTCs.

      Refer to DTC CHECK / CLEAR [04/2013 - 10/2016] 

      Chassis > VGRS > Trouble Codes 

      1. Simulate the malfunction and check if the DTCs are output again.

        Refer to DTC CHECK / CLEAR [04/2013 - 10/2016] 

      Result

      Result Proceed to
      DTCs are not output. A
      DTCs are output. B
      DTCs are not output, and the malfunction cannot be simulated or checked C

    Result: 

    See step  9

    Result: 

    SYMPTOM SIMULATION 

    Result: 

    See step  5

  5. DTC CHART 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  6

  6. CIRCUIT INSPECTION 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  7

  7. REPAIR 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  8

  8. CONFIRMATION TEST 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    END 

  9. PROBLEM SYMPTOMS TABLE 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  10

  10. CIRCUIT INSPECTION 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  11

  11. CONFIRMATION TEST 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    END