Window Defogger System How To Proceed With Troubleshooting

  1. VEHICLE BROUGHT TO WORKSHOP

  2. INSPECT BATTERY VOLTAGE

  3. CHECK LIN COMMUNICATION SYSTEM*

  4. PROBLEM SYMPTOMS TABLE

  5. OVERALL ANALYSIS AND TROUBLESHOOTING*

  6. REPAIR OR REPLACE

  7. CONFIRMATION TEST

Window Defogger System -- How To Proceed With Troubleshooting


HINT:
  1. Use these procedures to troubleshoot the window defogger system.
  2. *: 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 LIN COMMUNICATION SYSTEM*

    1. Check if the LIN communication system is functioning normally.

      OK:
      LIN DTC is not output.


    		NG.
    Go to LIN COMMUNICATION SYSTEM (LandCruiser RM000001RSO0BWX.html)
    OK


    4.PROBLEM SYMPTOMS TABLE

    1. Refer to the Problem Symptoms Table (LandCruiser RM000002ZCA04ZX.html).

      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 6
    A


    5.OVERALL ANALYSIS AND TROUBLESHOOTING*

    1. Terminals of ECU (LandCruiser RM000000WPS0D4X.html).

    2. Data List / Active Test (LandCruiser RM000002ZCD04KX.html).


    NEXT


    6.REPAIR OR REPLACE

      NEXT


      7.CONFIRMATION TEST

        NEXT

        END