POWER WINDOW CONTROL SYSTEM DETAILS


  1. SYSTEM CONTROL


    1. The power window control system has the following functions:

      Function Outline
      Manual Up-and-down The manual up-and-down 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.
      One-touch Auto Up-and-down 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.
      Jam Protection 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 manual up operation.
      Remote Control The multiplex network master switch assembly can control the up-and-down operation of all door windows.
      Window Lock Operation of the passenger windows is disabled when the window lock switch is pressed.
      Key Off Operation The key off operation function makes it possible to operate the power windows for approximately 45 seconds after the ignition switch (engine switch*1) is turned off, if either front door is not opened.
      Key-linked Up-and-down*2, *3 When the driver door is locked, and the transmitter in the driver door is turned and maintained in the lock direction for 1.5 seconds or more, the main 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 1.5 seconds or more will cause all door windows to be lowered.
      Transmitter-linked Up-and-down*2, *3

      • When the door control receives an unlock signal from the transmitter for longer than 2.5 seconds, the main body ECU controls the power window motors in accordance with the signal to open the windows.

      • When the door control receives a lock signal from the transmitter for longer than 2.5 seconds, the main body ECU controls the power window motors in accordance with the signal to close the windows.

      Tech Tips


      • *1: Models with entry and start system

      • *2: Customizable parameters can be configured by means of the customized body electronics system (default setting: off). For details, refer to the Repair Manual.

      • *3: The key is not detected within the interior detection area on models with entry and start system.


      1. The ECU which is built into each power window motor stores the initial position of its door window. The initial position is not cleared even if 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 initialization must be performed. For details, refer to the Repair Manual.

    2. 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 manual up operation.

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

        Door Window Position from Fully Closed 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 until 5 seconds have elapsed

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

        A01DLD7E01
        Text in Illustration
        *1 Hall IC *2 Magnet
        *3 Worm Gear *4 ECU

      4. The Hall ICs convert the changes in the magnetic flux that occur through the rotation of the magnet into pulse signals and output them to the ECU which is 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 signals 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.

        A01DKPWE02
        A01DKTFE01

  2. FAIL-SAFE


    1. 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.

      2. When any power window ECU detects an abnormality in a Hall IC, which detects the position, speed and direction of the window, it switches to fail-safe mode.