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System Description

  1. POWER WINDOW CONTROL SYSTEM DESCRIPTION 

    The power window control system controls the power window UP/DOWN function by using regulator motors. This system is mainly controlled by the multiplex network master switch assembly built into the driver side door and multiplex network switches built into the front passenger side doors. Pressing any of these multiplex network switches or the driver side door window switch mounted on the master switch transmits an UP/DOWN signal to the regulator motor for the corresponding power window, which then operates the power window UP/DOWN. Pressing any switch for the power windows except the driver's power window mounted on the master switch transmits a remote UP/DOWN signal to the main body ECU RH (cowl side junction block RH) via the multiplex communication line (BEAN) Then the main body ECU RH (cowl side junction block RH) transmits this remote signal to the regulator switch for the corresponding power window via the multiplex communication line and activates the motor to open/ close the power window

  2. FUNCTION OF MAIN COMPONENTS 

    The power window control system consists of the following components

    FUNCTION OF MAIN COMPONENTS

    Component Outline
    Multiplex Network 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 power window
    • Also uses two hall-ICs in the regulator motor to detect window position and jamming
    Multiplex Network Switch Assembly
    • Front Passenger Side
    • Rear LH Side
    • Rear RH Side
    • Located on front passenger side door and rear doors
    • Each switch controls window operation for its respective window
    • Also uses two hall-ICs in the regulator motor to detect window position and jamming
    Power Window Regulator Motor Assembly
    • Receives switch signals and changes signals into motor activation
    • As a result, window position changes
  3. SYSTEM FUNCTION 

    The power window control system has the following functions.

    SYSTEM FUNCTION

    Function Outline
    Manual UP/DOWN function Function that causes window to go up while power window switch is being pulled halfway up and to go down while pushed halfway down Window stops as soon as the switch is released
    AUTO UP/DOWN function (ALL AUTO) Function that enables all door windows to be fully open or closed by one press of power window switch
    Remote UP/DOWN function Function that allows multiplex network master switch assembly to control AUTO and MANUAL up-and-down operations of front passenger side door window and rear door windows
    Key-off operation function Function that makes it possible to operate power window for approx 45 seconds after engine switch is turned off, if either front door is not opened
    Window lock function Function where multiplex network switch assembly (front passenger, rear LH and rear RH side) operations are disabled when window lock switch is pressed Multiplex network switch assembly (front passenger, rear LH and rear RH side) can be operated when window lock switch is pressed again
    Jam protection function Function that automatically stops power window and moves it downward if a foreign object gets jammed in door window during auto up operation
    Key-linked open and close Function that causes window to go up while driver door key is turned to lock side for more than 1 5 seconds and to go down while turned to unlock side for more than 1 5 seconds Window stops as soon as the key is returned to original position
    Wireless transmitter-linked open Function that causes window to go down while unlock switch on transmitter is pressed for more than 2 5 seconds Window stops as soon as the switch is released
    Diagnosis Function that allows the power window switch to make a diagnosis for failed section when power window switch detects a malfunction in power window system Power window switch light comes on or blinks to inform driver
    Fail-safe Function that partially disables the power window functions if a pulse sensor in a power window motor has a malfunction
    • All door auto up-and-down function and remote control function are disabled
    • Manual operation is possible using each power window switch
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