Window Defogger System How To Proceed With Troubleshooting

Vehicle Exterior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Window Glass. Land Cruiser. Urj200, 202 Grj200 Vdj200

  1. VEHICLE BROUGHT TO WORKSHOP

  2. INSPECT BATTERY VOLTAGE

  3. CHECK VEHICLE TYPE

  4. CHECK LIN COMMUNICATION SYSTEM

  5. CHECK CAN COMMUNICATION SYSTEM

  6. PROBLEM SYMPTOMS TABLE

  7. OVERALL ANALYSIS AND TROUBLESHOOTING*

  8. REPAIR OR REPLACE

  9. 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 VEHICLE TYPE

    1. Check the vehicle type.

      Result
      Result
      		Proceed to
      w/o Navigation System
      		A
      w/ Navigation System
      		B



    		B.
    Go to step 5
    A


    4.CHECK LIN COMMUNICATION SYSTEM

    1. Check if the LIN communication system is functioning normally (Click here).

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



    		B.
    Go to step 6
    A

    Go to LIN COMMUNICATION SYSTEM (Click here)


    5.CHECK CAN COMMUNICATION SYSTEM

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

      1. for LHD with Central Gateway ECU: Click here
      2. for RHD with Central Gateway ECU: Click here
      3. for LHD without Central Gateway ECU: Click here
      4. for RHD without Central Gateway ECU: Click here
      Result
      Result
      		Proceed to
      CAN DTC is not output
      		A
      CAN DTC is output (for LHD with Central Gateway ECU)
      		B
      CAN DTC is output (for RHD without Central Gateway ECU)
      		C
      CAN DTC is output (for LHD with Central Gateway ECU)
      		D
      CAN DTC is output (for RHD without Central Gateway ECU)
      		E


    		B.
    Go to CAN COMMUNICATION SYSTEM (Click here)

    		C.
    Go to CAN COMMUNICATION SYSTEM (Click here)

    		D.
    Go to CAN COMMUNICATION SYSTEM (Click here)

    		E.
    Go to CAN COMMUNICATION SYSTEM (Click here)
    OK


    6.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.
    ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE
    A


    7.OVERALL ANALYSIS AND TROUBLESHOOTING*

    1. Terminals of ECU (Click here)

    2. Data List / Active Test (Click here)


    NEXT


    8.REPAIR OR REPLACE

      NEXT


      9.CONFIRMATION TEST

        NEXT

        END