HEATED WINDSHIELD DEFROSTER SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tech Tips


  • Use these procedures to troubleshoot the heated windshield defroster system.

  • *: Use the GTS.

PROCEDURE


  1. VEHICLE BROUGHT TO WORKSHOP

    Result
    Proceed to
    NEXT

    NEXT

  2. INSPECT BATTERY VOLTAGE


    1. Measure the battery voltage.

      Standard voltage
      11 to 14 V

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

      Result
      Proceed to
      NEXT

    NEXT

  3. CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*


    1. Use the GTS to check if the LIN communication system is functioning normally.

      Click here

      Result
      Proceed to
      LIN DTC is not output
      LIN DTC is output

    LIN DTC is output

    GO TO LIN COMMUNICATION SYSTEM Click here

    LIN DTC is not output

  4. CHECK AIR CONDITIONING SYSTEM


    1. Check if the air conditioning system is functioning normally

      Click here

      Result
      Result Proceed to
      Air conditioning system is functioning normally A
      Air conditioning system is not functioning normally B

    B

    GO TO AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System) Click here

    A

  5. PROBLEM SYMPTOMS TABLE


    1. Refer to the Problem Symptoms Table

      Click here

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

    B

    REPAIR OR REPLACE REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE Click here

    A

  6. REPAIR OR REPLACE

    Result
    Proceed to
    NEXT

    NEXT

  7. CONFIRMATION TEST

    Result
    Proceed to
    NEXT

    NEXT

    END