Power Window Control System How To Proceed With Troubleshooting

  1. VEHICLE BROUGHT TO WORKSHOP

  2. CUSTOMER PROBLEM ANALYSIS

  3. INSPECT BATTERY VOLTAGE

  4. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

  5. CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

  6. CHECK FOR DTC*

  7. PROBLEM SYMPTOMS TABLE

  8. OVERALL ANALYSIS AND TROUBLESHOOTING*

  9. ADJUST, REPAIR OR REPLACE

  10. INITIALIZE POWER WINDOW CONTROL SYSTEM

  11. CONFIRMATION TEST

Power Window Control System -- How To Proceed With Troubleshooting


HINT:
  1. Use these procedures to troubleshoot the power window control system.
  2. *: Use the GTS.


1.VEHICLE BROUGHT TO WORKSHOP

    NEXT


    2.CUSTOMER PROBLEM ANALYSIS
      HINT:
      1. In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
      2. Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
      3. The following 5 items are important points for problem analysis:

      What
      		Vehicle model, system name
      When
      		Date, time, occurrence frequency
      Where
      		Road conditions
      Under what conditions?
      		Driving conditions, weather conditions
      How did it happen?
      		Problem symptoms

    NEXT


    3.INSPECT BATTERY VOLTAGE

    1. Measure the battery voltage.

      Standard voltage:
      11 to 14 V
      HINT:
      1. A simple method to determine whether the battery is discharged is to operate the horn.
      2. If the voltage is below 11 V, recharge or replace the battery before proceeding.

    2. Check the fuses and relays.

    3. Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.


    NEXT


    4.CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

    1. Using the GTS, check for CAN communication system DTCs.

      1. for LHD with Entry and Start System: (LandCruiser RM000001RSO0C5X.html)
      2. for LHD without Entry and Start System: (LandCruiser RM000001RSO0BYX.html)
      3. for RHD with Entry and Start System: (LandCruiser RM000001RSO0BZX.html)
      4. for RHD without Entry and Start System: (LandCruiser RM000001RSO0C0X.html)
      Result
      Result
      		Proceed to
      CAN DTC is not output
      		A
      CAN DTC is output (for LHD with Entry and Start System)
      		B
      CAN DTC is output (for LHD without Entry and Start System)
      		C
      CAN DTC is output (for RHD with Entry and Start System)
      		D
      CAN DTC is output (for LHD without Entry and Start System)
      		E


    		B.
    GO TO CAN COMMUNICATION SYSTEM (LandCruiser RM000001RSO0C5X.html)

    		C.
    GO TO CAN COMMUNICATION SYSTEM (LandCruiser RM000001RSO0BYX.html)

    		D.
    GO TO CAN COMMUNICATION SYSTEM (LandCruiser RM000001RSO0BZX.html)

    		E.
    GO TO CAN COMMUNICATION SYSTEM (LandCruiser RM000001RSO0C0X.html)
    A


    5.CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

    1. Using the GTS, check for LIN communication system DTCs (LandCruiser RM000002S8D045X.html).

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



    		B.
    GO TO LIN COMMUNICATION SYSTEM (LandCruiser RM000001RSO0BWX.html)
    A


    6.CHECK FOR DTC*

    1. Check for DTCs and make a note of any codes that are output (LandCruiser RM000000YCC0CHX.html).

    2. Clear the DTCs (LandCruiser RM000000YCC0CHX.html).

    3. Recheck for DTCs (LandCruiser RM000000YCC0CHX.html).

      Result
      Result
      		Proceed to
      DTCs are not output
      		A
      DTCs are output
      		B



    		B.
    GO TO DIAGNOSTIC TROUBLE CODE CHART (LandCruiser RM00000363N07VX.html)
    A


    7.PROBLEM SYMPTOMS TABLE

    1. Refer to Problem Symptoms Table (LandCruiser RM0000027QG05BX.html).

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



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


    8.OVERALL ANALYSIS AND TROUBLESHOOTING*

    1. Operation Check (LandCruiser RM0000016810FQX.html).

    2. Terminals of ECU (LandCruiser RM0000013390C3X.html).

    3. Data List / Active Test (LandCruiser RM0000027QL04NX.html).

    4. Fail-safe Chart (LandCruiser RM000000X8Z0DCX.html).


    NEXT


    9.ADJUST, REPAIR OR REPLACE

    1. Check if any of the door window regulators, power window regulator motor assemblies, door glass or door glass runs have been removed and reinstalled.

      Result
      Result
      		Proceed to
      Any of the door window regulators, power window regulator motor assemblies, door glass or door glass runs have been removed and reinstalled.
      		A
      The door window regulators, power window regulator motor assemblies, door glass or door glass runs have not been removed and reinstalled.
      		B



    		B.
    GO TO STEP 11
    A


    10.INITIALIZE POWER WINDOW CONTROL SYSTEM

    1. Initialize the power window control system (LandCruiser RM0000011V20BLX.html).


    NEXT


    11.CONFIRMATION TEST

      NEXT

      END