POWER WINDOW CONTROL 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 power window control system.

  • *: Use the GTS.

PROCEDURE


  1. VEHICLE BROUGHT TO WORKSHOP

    Result
    Proceed to
    NEXT

    NEXT

  2. CUSTOMER PROBLEM ANALYSIS

    Tech Tips


    • 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.

    • Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.

    • 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
    Result
    Proceed to
    NEXT

    NEXT

  3. INSPECT BATTERY VOLTAGE


    1. Measure the battery voltage.

      Standard voltage
      11 to 14 V

      Tech Tips


      • A simple method to determine whether the battery is discharged is to operate the horn.

      • 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.

      Result
      Proceed to
      NEXT

    NEXT

  4. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*


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

      for LHD with Entry and Start System:

      Click here

      for LHD without Entry and Start System:

      Click here

      for RHD with Entry and Start System:

      Click here

      for RHD without Entry and Start System:

      Click here

      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 RHD without Entry and Start System) 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

    A

  5. CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*


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

      Click here

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

    B

    GO TO LIN COMMUNICATION SYSTEM Click here

    A

  6. CHECK FOR DTC*


    1. Check for DTCs and make a note of any codes that are output.

      Click here

    2. Clear the DTCs.

      Click here

    3. Recheck for DTCs.

      Click here

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

    B

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    A

  7. PROBLEM SYMPTOMS TABLE


    1. Refer to Problem Symptoms Table.

      Click here

      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.

      Click here

    2. Terminals of ECU.

      Click here

    3. Data List / Active Test.

      Click here

    4. Fail-safe Chart.

      Click here

      Result
      Proceed to
      NEXT

    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 Click here

    A

  10. INITIALIZE POWER WINDOW CONTROL SYSTEM


    1. Initialize the power window control system.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  11. CONFIRMATION TEST

    Result
    Proceed to
    NEXT

    NEXT

    END