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Home >> Lexus >> 2021 >> RC F Base >> Repair and Diagnosis (Single Page) >> Suspension >> Suspension Control Systems >> Adaptive Variable Suspension System - Diagnostics - Introduction >> Adaptive Variable Suspension System >> How To Proceed With Troubleshooting [08/2016 - 01/2023] >> Procedure

How To Proceed With Troubleshooting [08/2016 - 01/2023]: Procedure

  1. VEHICLE BROUGHT TO WORKSHOP 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  2

  2. PROBLEM SYMPTOM CONFIRMATION 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  3

  3. INSPECT BATTERY VOLTAGE 
    1. Measure the voltage of the battery.

      Standard Voltage

      11 to 14 V

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

      Result

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      NEXT

    Result: 

    NEXT 

    See step  4

  4. CHECK ECUS CONNECTED TO CAN BUS* 
    1. Check the ECUs connected to the CAN bus.

      Refer to DIAGNOSIS SYSTEM [08/2016 - 11/2017] , or refer to DIAGNOSIS SYSTEM [11/2017 - 03/2019] , or refer to DIAGNOSIS SYSTEM [03/2019 - 09/2020] , or refer to DIAGNOSIS SYSTEM [09/2020 - 01/2023]

      Result

      Result Proceed to
      No malfunction appears A
      Malfunction appears B

    Result: 

    GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING). Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 11/2017]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2017 - 03/2019]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2019 - 01/2023] 

    Result: 

    See step  5

  5. CHECK DTC AND FREEZE FRAME DATA* 
    1. Check for and write down any DTCs and Freeze Frame Data.

      for DTC Check / Clear: Refer to DTC CHECK / CLEAR [08/2016 - 01/2023] 

      for Freeze Frame Data: Refer to FREEZE FRAME DATA [08/2016 - ] 

      Chassis > Air suspension > Trouble Codes 

    2. Clear the DTCs and Freeze Frame Data.

      for DTC Check / Clear: Refer to DTC CHECK / CLEAR [08/2016 - 01/2023] 

      for Freeze Frame Data: Refer to FREEZE FRAME DATA [08/2016 - ] 

      Chassis > Air suspension > Clear DTCs 

    3. Recheck for DTCs.

      Chassis > Air suspension > Trouble Codes 

      Result

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

    Result: 

    GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2016 - 03/2019]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [03/2019 - 01/2023]  

    Result: 

    See step  6

  6. PROBLEM SYMPTOMS TABLE 

    Result

    Result Proceed to
    Fault is not listed in Problem Symptoms Table A
    Fault is listed in Problem Symptoms Table B

    Result: 

    See step  9

    Result: 

    See step  7

  7. OVERALL ANALYSIS AND TROUBLESHOOTING* 
    1. Data List / Active Test

      Refer to DATA LIST / ACTIVE TEST [08/2016 - 03/2019] , or refer to DATA LIST / ACTIVE TEST [03/2019 - 01/2023] 

    2. Terminals of ECU

      Refer to TERMINALS OF ECU [08/2016 - 03/2019] , or refer to TERMINALS OF ECU [03/2019 - ] 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  8

  8. REPAIR OR REPLACE 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  9

  9. CONFIRMATION TEST 

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    END