POWER WINDOW CONTROL SYSTEM DETAILS


  1. SYSTEM CONTROL


    1. 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 power window regulator 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 (Front Doors) The one-touch auto up-and-down function enables the window to be fully opened or closed at a touch of the power window regulator master switch assembly. Standard (Not Customizable)
      Jam Protection (Front Doors) The jam protection function automatically stops the power window and moves it downward if an object gets jammed in the door window glass during one-touch auto-up operation or power up operation. Standard (Not Customizable)
      Catch Protection (Front Doors) The catch protection function automatically stops the power window if an object gets caught by the door window glass during one-touch auto-down operation or power down. Standard (Not Customizable)
      Remote Control (All Doors) The power window regulator 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. 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 stop operating.

      		 Standard (Not Customizable)
      Key-linked Up-and-down

      When the electrical key transmitter sub-assembly is not in the interior detection area, the driver door is locked, and the mechanical key in the driver door is turned and maintained in the lock position 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 mechanical key is turned.

      Similarly, when the driver door is unlocked, turning and maintaining the driver door key cylinder in the unlock position for 1.5 seconds or more will cause all door windows to be lowered.

      		 *2
      Transmitter-linked Down When the certification ECU (smart key ECU assembly) receives an unlock signal from the transmitter for longer than 2.4 seconds, the main body ECU (multiplex network body ECU) controls the power window motors in accordance with the signal to open the windows. *2

      • *1: Customizable settings can be turned on or off. For details, refer to the Repair Manual.

      • *2: Default setting is off.

      Tech Tips

      The ECU built into each driver and front passenger door power window motor stores the initial position of its door window glass. The initial position is not cleared even if an 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 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.

    2. Jam Protection Function


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

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

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

    3. Catch Protection Function


      1. A catch protection function automatically stops the power window if an object gets caught by the door window glass during one-touch auto down operation and power down operation.

    4. Power Window Regulator Motor Assembly


      1. The magnet and Hall IC in the power window motor are used in the power window jam protection function and catch protection function.

        A01HX96E01
        Text in Illustration
        *a Hall IC *b Worm Gear
        *c Magnet - -

      2. The Hall IC converts the changes in the magnetic flux that occur through the rotation of the magnet into pulse signals and outputs them to the ECU built-into the power window motor.

      3. To control the jam protection function and catch protection function, the ECU determines the amount of movement and determines if the window glass is jamming based on the pulse signal A from the Hall IC; The direction of the window glass movement is determined based on the phase difference between the pulses from Hall IC signals A and B.

        A01HWYME12

  2. FAIL-SAFE


    1. If the Hall IC in the power window motor (driver and front passenger) malfunctions, some power window functions will be prohibited for fail-safe mode:


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

  3. DIAGNOSIS


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


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