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

DESCRIPTION

• When the driver door has not been opened and fully closed, driver door power window regulator motor can control its power window operation for approximately 45 seconds after the ignition switch is turned from ON to off (the key is removed) by receiving operation permission signals from the main body ECU (Multiplex network body ECU). However, when approximately 45 seconds have elapsed, or the driver door is opened within approximately 45 seconds of the ignition switch being turned off (the key is removed), the power window regulator motor stops operating.

  During AUTO function operation, the window operation will continue until complete even if 45 seconds have passed or a door is opened.

  Note

  
  

  • The power window control system uses a multiplex communication system (LIN). Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the power window control system after confirming that the communication system is functioning properly.

  • The power window control system prohibits the AUTO UP/DOWN function when the jam protection function malfunctions. Therefore, troubleshoot the power window control system after confirming that no diagnostic codes are displayed.

WIRING DIAGRAM

PROCEDURE

1. READ VALUE USING INTELLIGENT TESTER (LIN COMMUNICATION D-DOOR MOTOR)

   
   

   1. Connect the intelligent tester to the DLC3.

   2. Turn the ignition switch to ON.

   3. Turn the tester on.

   4. Enter the following menus: Body / Main Body / Data List.

   5. According to the display on the tester, read the Data List.

      Main Body

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      Communication D-Door Motor	Connection status between power window regulator motor (for driver side) and main body ECU / OK or STOP	OK: Communication is normal Stop: Communication is stopped	-

      OK
      OK is displayed on the intelligent tester screen.

   
   

   NG

   GO TO LIN COMMUNICATION SYSTEM Click here

   OK

2. CHECK OPERATION FUNCTION AFTER IGNITION SWITCH IS TURNED OFF

   
   

   1. Check the power window operation function after the ignition switch is turned off.

      Result

      Result	Proceed to
      When power window can still be operated even after opening driver door within approximately 45 seconds of ignition switch being turned off	A
      When power window can still be operated even after approximately 45 seconds have elapsed after ignition switch turned off	B

   
   

   B

   REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

   A

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

   
   

   1. Connect the intelligent tester to the DLC3.

   2. Turn the ignition switch to ON.

   3. Turn the tester on.

   4. Enter the following menus: Body / Main Body / Data List.

   5. According to the display on the tester, read the Data List.

      Main Body

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      FR Door Courtesy SW	Front door courtesy switch RH signal / ON or OFF	ON: Front door RH open OFF: Front door RH closed	-
      FL Door Courtesy SW	Front door courtesy switch LH signal / ON or OFF	ON: Front door LH open OFF: Front door LH closed	-

      OK
      Normal conditions listed above are displayed.

   
   

   OK

   REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

   NG

   GO TO LIGHTING SYSTEM Click here