POWER WINDOW CONTROL SYSTEM Key-off Operation Function Operates even if Operating Conditions are not Satisfied

DESCRIPTION

• When the front doors are closed, each power window regulator motor can control its power window operation for approximately 45 seconds after the engine switch is turned from on (IG) to off by receiving operation permission signals from the main body ECU.

• However, when approximately 45 seconds have elapsed, or the driver side door is opened and closed within approximately 45 seconds of the engine switch being turned off, the power window regulator motor disables manual operation.

• During the auto function operation, when 45 seconds have passed and key-off operation is prohibited, the window operation will not stop until the auto operation is completed.

• The front passenger side power window and the rear power windows cannot be operated when the window lock switch is on.

INSPECTION PROCEDURE

PROCEDURE

1. CHECK LIN COMMUNICATION SYSTEM

   
   

   1. Check for LIN communication system DTCs related to the power window control system Click here.

      OK
      LIN communication system DTCs are not output.

   
   

   NG

   GO TO LIN COMMUNICATION SYSTEM Click here

   OK

2. CHECK POWER WINDOW OPERATION FUNCTION AFTER ENGINE SWITCH OFF

   
   

   1. Check the power window operation function after the engine switch is turned off Click here.

      Result

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

   
   

   B

   REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)

   A

3. READ VALUE USING INTELLIGENT TESTER (DOOR COURTESY SWITCH)

   
   

   1. Use the Data List to check if the main body ECU is functioning properly Click here.

      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	-

      OK
      Display changes according to above chart.

   
   

   NG

   CHECK FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY Click here

   OK

   REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)

4. CHECK FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY

   
   

   1. Open the driver side door and check that the map light illuminates Click here.

      OK
      Map light illuminates.

   
   

   NG

   REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY Click here

   OK

   REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)