VEHICLE STABILITY CONTROL SYSTEM (for Hydraulic Brake Booster) HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips

*: Use the intelligent tester.


  1. VEHICLE BROUGHT TO WORKSHOP


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  2. INSPECT BATTERY VOLTAGE

    Standard voltage
    11 to 14 V

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


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  3. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*


    1. Using the intelligent tester, inspect the CAN communication function to make sure there are no malfunctions in the CAN communication system (for LHD: Click here, for RHD: Click here.

      Result
      Result Proceed to
      DTC is not output A
      DTC is output B

      Tech Tips

      The skid control ECU sends the signals of each warning light via CAN communication.


      B

      GO TO CAN COMMUNICATION SYSTEM
      A

  4. CHECK DTC AND FREEZE FRAME DATA*


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  5. CLEAR DTC AND FREEZE FRAME DATA*


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  6. PROBLEM SYMPTOM CONFIRMATION


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  7. DTC CHECK AND CLEAR*


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  8. PROBLEM SYMPTOM CONFIRMATION

    Result
    Result Proceed to
    Symptom does not occur A
    Symptom occurs B

    B

    GO TO STEP 11
    A

  9. SYMPTOM SIMULATION


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  10. CHECK FOR DTC (OTHER THAN CAN COMMUNICATION SYSTEM DTC)*

    Result
    Result Proceed to
    DTC is not output A
    DTC is output B

    B

    GO TO STEP 12
    A

  11. PROBLEM SYMPTOMS TABLE


    NEXT
    GO TO STEP 14

  12. DTC CHART


    NEXT

  13. CIRCUIT INSPECTION*


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  14. IDENTIFICATION OF PROBLEM


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  15. REPAIR OR REPLACE


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  16. CONFIRMATION TEST*


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    END