ELECTRIC PARKING BRAKE SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


  • Use these procedures to troubleshoot the electric parking brake system.

  • *: 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 ensure there are no malfunctions in the communication system.

      Result
      Result Proceed to
      No DTCs output A
      DTCs output B

      B
      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
    A
  9. SYMPTOM SIMULATION


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

    Result
    Result Proceed to
    No DTCs output A
    DTCs output B

    B
    A
  11. PROBLEM SYMPTOMS TABLE


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  12. DTC CHART


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  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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