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Key-off Operation Function Operates even if Operating Conditions are not Satisfied: Procedure

  1. CHECK LIN COMMUNICATION SYSTEM 
    1. Check for LIN communication system DTCs related to the power window control system.
      RESULT:

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

    B → See step   5 

    A: Go to next step 

  2. CHECK POWER WINDOW OPERATION FUNCTION AFTER POWER SWITCH OFF 
    1. Check the power window operation function after the power switch is turned OFF.
      RESULT:

      Result Proceed to
      Driver side door or front passenger side door is opened within 45 seconds but power window can still operate A
      45 seconds pass and the power windows can still operate B

    B → REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK) 

    A: Go to next step 

  3. READ VALUE USING TECHSTREAM (DOOR COURTESY SWITCH) 
    1. Use the Data List to check if the main body ECU is functioning properly.
      MAIN BODY:

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      D Door Courtesy SW Driver side door courtesy switch signal / ON or OFF ON: Driver door open
      OFF: Driver door closed
      -
      P Door Courtesy SW Front passenger side door courtesy switch signal / ON or OFF ON: Front passenger door open
      OFF: Front passenger door closed
      -

      OK

      Tester display changes normally when door courtesy switch is operated.

    NG → See step   4 

    OK → REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK) 

  4. CHECK FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY 
    1. Open the driver side door and check that the map light illuminates.

      OK

      Map light illuminates.

    2. Open the front passenger side door and check that the map light illuminates.

      OK

      Map light illuminates.

    NG → See step   6 

    OK → REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK) 

  5. GO TO LIN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING 
  6. REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY. Refer to  REMOVAL