POWER WINDOW CONTROL SYSTEM


  1. SYSTEM CONTROL


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

      Function Outline
      Power Up-and-down This function causes the window to open or close while the multiplex network master switch assembly, power window regulator switch assembly or rear 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, power window regulator switch assembly or rear power window regulator switch assembly.
      Variable Speed Control This control minimizes the occurrence of noise during the power window open/close operation by changing the operating speed of the power window regulator motor 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 power up operation.
      Catch Protection Catch protection function automatically stops the power window if a foreign object gets jammed in the window during one-touch auto-down operation or power down.
      Remote Control The multiplex network master switch assembly can control the up-and-down operation of the windows.
      Soft Stop During an up operation of the power window, the power window ECU stops the current to the power window motor right before the door glass is fully closed.
      Window Lock

      • Operation of the 3 passenger windows at each power window regulator switch assembly is disabled when the window lock switch is pressed.

      • Even when the window lock switch is pressed, the 3 passenger windows can be operated using the multiplex network master switch assembly.
      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 the power window regulator switch assembly or any of the rear power window regulator switch assemblies. If the window lock switch is on, only the multiplex network master switch assembly can be used to operate the windows.
      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 direction for 1.5 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 direction for 1.5 seconds or more will cause all door windows to be lowered.
      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 the power window motors in accordance with the signal to open the windows. Similarly, 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 the power window motors in accordance with the signal to close the windows.
      Power Window Glass Open Warning When the power switch is turned from on (IG) to off and the driver door is opened with the power window glass open, the multi buzzer in the combination meter assembly sounds once. Then, a warning message appears on the multi-information display and the master warning light blinks.
      Customization The on or off setting of some functions can be performed using the Techstream. For details, refer to the Repair Manual.

      Tech Tips

      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 terminals, fuses or the power window motor connector are disconnected. However, after removing or reinstalling window components, or replacing the power window regulator switch 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. Variable Speed Control


      1. Opening Power Window


        • The power window regulator motor assembly increases the door window opening speed to normal speed when the door glass is between the fully closed position and open position of a specified value. Also, the power window regulator motor assembly reduces the opening speed from normal speed when the door glass is between the fully opened position and an open position of a specified value.

          A01MA82C01
          *1 Door Glass - -
          *a Acceleration *b Normal Speed
          *c Deceleration *d The illustrations shown are for example only.

      2. Closing Power Window


        • The power window regulator motor assembly increases the door glass closing speed to normal speed when the door glass is between the fully opened position and an open position of a specified value. Also, the power window regulator motor assembly reduces the closing speed from normal speed when the door glass is between the fully closed position and a close position of a specified value.

          A01MA79C01
          *1 Door Glass - -
          *a Deceleration *b Normal Speed
          *c Acceleration *d The illustrations shown are for example only.

    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 and power up operation.

      2. The jam protection function operation differs according to the following situations:

        Situation Operation
        During auto up operation Down operation until door window glass downward movement of 135 mm (5.3 in.) is reached or 2.5 seconds elapse
        During manual up operation using any power window switch other than the corresponding power window switch
        During manual up operation using the corresponding power window switch Down operation until door window glass downward movement of 25 mm (1.0 in.) is reached or 2.5 seconds elapse

    4. Catch Protection Function


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

    5. Power Window Regulator Motor Assembly


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

        A01MAFKC02
        *1 Hall IC *2 Worm Gear
        *3 Magnet - -

      2. 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.

      3. To control the jam protection function, the ECU determines the amount of movement and jamming of the window glass based on the 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 signal A and B.

        A01MAA9E26

  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 regulator 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 the power window ECU detects a malfunction in the power window control system, a Diagnostic Trouble Code (DTC) is stored in memory.


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