POWER WINDOW CONTROL SYSTEM DETAILS


  1. SYSTEM CONTROL


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

      Function Outline
      Manual 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.
      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 by firmly operating the multiplex network master switch assembly or power window regulator switch assembly.
      Variable Speed Control (All 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.
      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 manual up operation.
      Remote Control (All Doors) The multiplex network master switch assembly can control the up-and-down operation of the windows.
      Window Lock

      • Operation of the 3 passenger windows is disabled when the window lock switch is pressed.

      • Similarly, the power window illuminations 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.
      Key Off Operation

      • This function makes it possible to operate the power windows for approx. 43 seconds after the power switch is turned off, when the driver door is not opened.

      • When the window lock switch is off, the windows can be operated using any of the power window regulator switch assemblies. When the window lock switch is on, only the multiplex network master switch assembly can be used to operate the windows.

      • When the driver door or front passenger door is opened while the power window is performing key off operation, the window will continue operating until fully closed if operated using the one-touch auto up function, or will continue operating until fully open if operated using the one-touch auto down function.
      Key-linked Up-and-down

      • When the key in the driver door is turned and maintained in the lock direction for 1.5 seconds or more while the key is not in the interior detection area and the driver door is locked, the power window 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*

      • When the certification ECU receives an unlock signal from the transmitter for 3 seconds or more, the main body ECU controls the power window motors to open all the windows.

      • Similarly, when the certification ECU receives a lock signal from the transmitter for 3 seconds or more, the main body ECU controls the power window motors to close all the windows.
      Customization The on or off setting of some functions can be performed using the Global TechStream (GTS). For details, refer to the Repair Manual.

      Tech Tips

      *: Except models for Korea

      The power window ECU stores the initial position. The memory is not cleared even if auxiliary battery terminals, fuses or power window ECU connectors are disconnected. However, the power window regulator motor assembly needs to be initialized if it is replaced with a new one or it is reinstalled with the power window regulator sub-assembly. For details, refer to the Repair Manual.

    2. Variable Speed Control


      1. Opening Power Window


        1. To minimize noise when the power window down function is in operation, the power window regulator motor assembly increases the door window glass opening speed to normal speed when the front door window glass is between the fully closed position and an open position of approximately 70 mm (2.8 in.), and when the rear door window glass is between the fully closed position and an open position of approximately 90 mm (3.5 in.). Also, the assembly reduces the opening speed from normal speed when the front door window glass is between the fully opened position and an open position of approximately 150 mm (5.9 in.), and when the rear door window glass is between the fully opened position and an open position of approximately 135 mm (5.3 in.).

          A01FPH5E01
          Text in Illustration
          *1 Door Window Glass - -
          *a Acceleration *b Normal Speed
          *c Deceleration - -

      2. Closing Power Window


        1. To minimize noise when the power window up function is in operation, the power window regulator motor assembly increases the door window glass closing speed to normal speed when the front door window glass and rear door window glass are between the fully opened position and an open position of approximately 25 mm (1 in.). Also, the assembly reduces the closing speed from normal speed when the front door window glass is between the fully closed position and an open position of approximately 105 mm (4.1 in.), and when the rear door window glass is between the fully closed position and an open position of approximately 120 mm (4.7 in.).

          A01FPULE01
          Text in Illustration
          *1 Door Window Glass - -
          *a Deceleration *b Normal Speed
          *c Acceleration - -

    3. Jam Protection Function


      1. A 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.

      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 a door window downward movement of 200 mm (7.87 in.) is reached, or until 5 seconds have elapsed

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

        A01FPVSE01
        Text in Illustration
        *1 ECU *2 Worm Gear
        *3 Power Window Motor *4 Hall IC

      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 power window ECU built into the power window regulator motor assembly.

      5. To control the jam protection function, the power window 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.

        A01FP8WE14

  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.

  3. DIAGNOSIS


    1. 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.