WINDOW DEFOGGER SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


  • Use the following procedure to troubleshoot the defogger system.

  • Using 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. PROBLEM SYMPTOMS TABLE

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

    B

    Go to STEP 5
    A

  4. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Terminals of ECU Click here.

    2. Data List/Active Test Click here.

    3. On-vehicle inspection Click here.


      NEXT

  5. REPAIR OR REPLACE


    NEXT

  6. CONFIRMATION TEST


    NEXT
    END