POWER BACK DOOR SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


  • Use the following procedures to troubleshoot the power back door system.

  • *: Use the intelligent tester.


  1. VEHICLE BROUGHT TO WORKSHOP


    NEXT

  2. INSPECT BATTERY VOLTAGE

    Standard voltage
    11 to 14 V

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


    NEXT

  3. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*


    1. Use the intelligent tester to check if the CAN communication system is functioning normally.

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

      B

      Go to CAN COMMUNICATION SYSTEM
      A

  4. CHECK FOR DTC*


    1. Check for DTCs Click here.

    2. Clear the DTCs Click here.

    3. Recheck for DTCs Click here.

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

      B

      Go to DIAGNOSTIC TROUBLE CODE CHART
      A

  5. PROBLEM SYMPTOMS TABLE

    Result
    Result Proceed to
    Fault is not listed on problem symptoms table A
    Fault is listed on problem symptoms table B

    B

    Go to step 7
    A

  6. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Operation check Click here

    2. Terminals of ECU Click here

    3. Data List / Active Test Click here


      NEXT

  7. REPAIR OR REPLACE


    NEXT

  8. CONFIRMATION TEST


    NEXT
    END