POWER WINDOW CONTROL SYSTEM > DETAILS

The power window control system has the following functions:

Function	Outline	Customizable*1
Power Up-and-down (All Doors)	This function causes the window to open or close while the multiplex network master switch assembly or power window regulator switch assembly is being pulled halfway up or pushed halfway down. The window stops as soon as the switch is released.	Standard (Not Customizable)
One-touch Auto Up-and-down (All Doors)	The one-touch auto up-and-down function enables the window to be fully opened or closed at a touch of the multiplex network master switch assembly or power window regulator switch assembly.	*3
Variable Speed Control (Front Doors)	This control minimizes the occurrence of noise during the power window open/close operation by changing the operating speed of the power window motor.	Standard (Not Customizable)
Jam Protection (All Doors)	The jam protection function automatically stops the power window and moves it downward if a foreign object gets jammed in the window during one-touch auto-up operation or power up operation.	Standard (Not Customizable)
Remote Control (All Doors)	The multiplex network master switch assembly can control the up-and-down operation of the windows.	Standard (Not Customizable)
Window Lock	Operation of the 3 passenger windows is disabled when the window lock switch is pressed. Similarly, the power window illumination of the power window regulator switches, except the one for the driver door, are turned off to inform the occupants that the windows cannot be operated.	Standard (Not Customizable)
Key Off Operation	This function makes it possible to operate the power windows for approximately 43 seconds after the power switch is turned off, if either front door is not opened. If the window lock switch is off, the windows can be operated using any of the power window regulator switch assemblies. If the window lock switch is on, the windows cannot be operated.. If the driver door or front passenger door is opened during automatic window operation while the key-off operation function is on, the window will continue operating until fully open or fully closed.	Standard (Not Customizable)
Key-linked Up-and-down	When the key is not in the interior detection area, the driver door is locked, and the key in the driver door is turned and maintained in the lock direction for 2.3 seconds or more, the main body ECU (multiplex network body ECU) activates the power window motors to raise all door windows while the key is turned. Similarly, when the driver door is unlocked, turning and maintaining the driver door key in the unlock direction for 2.3 seconds or more will cause all door windows to be lowered.	*2
Transmitter-linked Up-and-down	When the certification ECU (smart key ECU assembly) receives an unlock signal from the transmitter for longer than 3 seconds, the main body ECU (multiplex network body ECU) controls their power window motors in accordance with the signal to open the windows. When the certification ECU (smart key ECU assembly) receives a lock signal from the transmitter for longer than 3 seconds, the main body ECU (multiplex network body ECU) controls their power window motors in accordance with the signal to close the windows.	*2

1. *1: Customizable settings can be turned on or off. For details, refer to Repair Manual.
   
2. *2: Default setting is off.
   
3. *3: Default setting is on.
   

HINT:

The ECU built into each power window motor stores the initial position of its door window. The initial position is not cleared even if the auxiliary battery terminals, fuses or the power window motor connector is disconnected. However, after removing or reinstalling window components, or replacing the power window regulator sub-assembly or power window regulator motor, the stored initial position data must be cleared and/or initialization must be performed. For details, refer to the Repair Manual.

Variable Speed Control

1. Opening Power Window
   

   1. In order to minimize the noise when the power window open function starts operating, the power window ECU accelerates the window opening speed up to a certain position.
      
   
   
   2. In order to minimize the noise when the power window is opened fully, the power window ECU decelerates the window opening speed within approximately 150 mm (5.91 in.) of the window fully open position.
      
      
      
      
      
      
   
   

   Text in Illustration 

   *1	Acceleration	*2	Normal Speed
   *3	Deceleration	*4	Door Window Glass
   *a	Approximately 150 mm (5.91 in.)	-	-

2. Closing Power Window
   

   1. In order to minimize the noise when the power window close function starts operating, the power window ECU accelerates the window closing speed up to a certain position.
      
   
   
   2. In order to minimize the noise when the power window is closed fully, the power window ECU decelerates the window closing speed within approximately 110 mm (4.33 in.) of the window fully open position.
      
      
      
      
      
      
   
   

   Text in Illustration 

   *1	Deceleration	*2	Normal Speed
   *3	Acceleration	*4	Door Window Glass
   *a	Approximately 110 mm (4.33 in.)	-	-

Jam Protection Function

1. The jam protection function automatically stops the power window and moves it downward if a foreign object gets jammed in the door window during one-touch auto up operation or power up operation.
   

2. The operation of the jam protection function is described below.
   
   

   Door Window Position from Full Close	Operation
   200 mm (7.87 in.) or more	Down operation of 125 mm (4.93 in.) or 2.5 seconds
   200 mm (7.87 in.) or less	Down operation until door window downward movement of 200 mm (7.87 in.) is reached, or 5 seconds elapses.





3. The magnet and 2 Hall ICs in the power window motor assembly are used to enable power window jam protection.
   

   
   
   
   
   

   Text in Illustration 

   *1	Hall IC	*2	Worm Gear
   *3	Magnet	-	-

4. The Hall ICs convert the changes in the magnetic flux that occur through the rotation of the magnet into pulse signals and outputs them to ECU built-into the power window motor assembly.
   





5. To control the jam protection function, the ECU determines the amount of movement and jamming of the window glass based on the pulse signal from the Hall IC1; and judges the direction of the window glass movement based on the phase difference between the pulses from the Hall IC1 and Hall IC2.
   

   
   
   
   

If a Hall IC in the power window motor malfunctions, some power window functions will be prohibited for the fail-safe mode:

1. Each power window operates when the corresponding power window switch is fully pushed down or pulled up and held in that position.
   

When any power window ECU detects the following condition, it switches to fail-safe mode.

1. An abnormality in a Hall IC that detects the position, speed and direction of the window.