POWER WINDOW CONTROL SYSTEM SYSTEM DESCRIPTION


  1. POWER WINDOW CONTROL SYSTEM DESCRIPTION


    1. The power window control system controls the power window operation using the power window regulator motors. The main controls of this system are the power window regulator master switch assembly, which is mounted on the driver side door, and the power window regulator switches, which are mounted on the front passenger side door and rear doors. Operating a window switch results in electrical power being transmitted to the corresponding power window regulator motor.

  2. FUNCTION OF MAIN COMPONENTS

    The power window control system consists of the following components:

    Component Outline
    Power Window Regulator Master Switch Assembly

    • Controls power window operation for all seats.

    • When lock switch is set to lock position, window operation will be possible only for driver side power window.

    Power Window Regulator Switch Assembly


    • Front Passenger Side

    • Rear LH Side

    • Rear RH Side

    • Located on front passenger and rear doors.

    • Each switch controls window operation for its respective window.

    Window Regulator Assembly


    • Power Window Regulator Motor Assembly

    • Receives switch signals and changes signals into motor activation. As a result, window position changes.

    • Uses Hall-IC in regulator motor with ECU to detect window position and jamming.

  3. SYSTEM FUNCTION

    The power window control system has the following functions:

    Function Outline
    Manual up/down function Function that causes the window to go up while the power window switch is being pulled halfway up and to go down while pushed halfway down. The window stops as soon as the switch is released.
    Auto up/down function (All auto) Function that enables a window to be fully opened or closed by one full pull or push of the power window regulator master switch assembly or the power window regulator switch assembly.
    Window lock function

    • Function that disables front passenger and rear door window operation when the window lock switch is pressed.

    • The front passenger and rear door windows can be operated when the window lock switch is pressed again.
    Jam protection function Function that automatically stops the power window and moves it downward if a foreign object gets jammed in the door window during auto up and manual up operation.
    Remote control function Function that allows the power window regulator master switch assembly to control manual and auto up-and-down operation of the front passenger door window and rear door windows.
    Key-off operation function

    • Function that makes it possible to operate all power windows for approximately 45 sec. after the power switch is turned off when the driver door or front passenger door has not been opened.

    • When 45 sec. have elapsed, or the driver door or front passenger door is opened after the power switch is turned off, the key-off operation function will be disabled.

    Tech Tips

    Even 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 continue operating.
    Diagnosis Function that allows diagnosis of the power window control system if any of the power window ECUs (built into each power window regulator motor assembly) detect a malfunction in the system. If a malfunction is detected, the power window ECU will illuminate the LEDs on the power window regulator master switch assembly and the respective power window regulator switch assembly to inform the driver and passenger of the malfunction.
    Fail-safe

    A fail-safe function to disable a part of power window functions if the pulse sensor in the power window motor has a malfunction.

    Auto up-and-down function and remote control function are disabled.