POWER WINDOW CONTROL SYSTEM


  1. FUNCTION


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

      Function Outline
      Power Up-and-down (All Doors*1/Front Doors*2) 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.
      One-touch Auto Up-and-down (All Doors*3/Driver's Door*4) 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 or power window regulator switch assembly.
      Jam Protection (All Doors/Driver's Door) 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.
      Remote Control (All Doors*1/Front Doors*2) The power window regulator master switch assembly can control the up-and-down operation of all power windows.
      Window Lock Operation of the front passenger window and rear windows*1 is disabled when the window lock switch is pressed.
      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, only the power window regulator master switch assembly can be used to operate the windows (remote operation remains possible).*3

      *1: Models with rear power window control system

      *2: Models without rear power window control system

      *3: Models with jam protection function on 4 windows

      *4: Models with jam protection function (driver's door)

      Tech Tips

      The ECU built into each power window regulator motor assembly stores the initial position of its door window. The initial position is not cleared even if battery terminals, fuses or the power window regulator motor assembly connector is disconnected. However, after removing or reinstalling window components, or replacing the power window regulator assembly or power window regulator motor assembly, 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 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 regulator motor assembly are used to enable power window jam protection.

        A00Z0AGC02
        *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 output them to the ECU built-into the power window regulator motor assembly.

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

        A00Z09UE19

  2. FAIL-SAFE


    1. If a Hall IC in the power window regulator 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.

  3. DIAGNOSIS


    1. When the power window ECU detects malfunctions in the power window control system, DTCs are stored in memory.

    2. The DTCs can be read using the Global TechStream (GTS). For details, refer to the Repair Manual.