POWER WINDOW CONTROL SYSTEM SYSTEM DESCRIPTION


  1. POWER WINDOW CONTROL SYSTEM DESCRIPTION


    • The power window control system controls the power window up/down function using the power window regulator motor. The main controls of this system are the multiplex network master switch which is built into the driver side door, and the power window regulator switches which are built into the front passenger side door and rear doors.


    • Pressing either of the power window switches on the power window regulator switches or either of the power window switches on the multiplex network master switch transmits an up/down signal to the corresponding power window regulator motor.


    • An ECU is built into the power window regulator motor.

  2. FUNCTION OF MAIN COMPONENT

    The power window control system consists of the following components:

    Component Outline
    Multiplex network master switch

    • Controls power window operation for all windows.

    • When window lock switch is on position, window operation will only be possible with multiplex network master switch.
    Power window regulator switch

    • Located on front passenger side door and rear doors.

    • Each power window switch controls power window operations for its respective window.
    Power window regulator motor

    • Receives power window switch signals and activates motor to change window position.

    • 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 raises a window while a power window switch is pulled halfway up, and lowers the window while pushed halfway down (the window stops as soon as the power window switch is released).

    Auto up/down function

    (All auto)

    		 Function that enables a window to be fully opened or closed by one full push or pull of the power window switch.
    Remote up/down function Function that allows the multiplex network master switch to control the front passenger side power window and rear power windows.
    Key-off operation function

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

    • If 45 sec. have passed or a front door is opened and closed while the auto function is operating, the window operation will continue until the auto function is completed..
    Window lock function

    • Function where the front passenger side power window regulator switch and rear power window regulator switch operations are disabled when the window lock switch is on.

    • The front passenger side power window regulator switch and rear power window regulator switches can be operated when the window lock switch is off.
    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 or manual up operation.
    Catch protection function Function that automatically stops the power window if a foreign object gets caught in the door window during auto down or manual down operation.
    Key-linked open and close

    • When the key is not inside the vehicle, the driver side door is locked, and the key inserted into the driver side door key cylinder is turned and maintained in the lock position for 2.3 sec. or more, the main body ECU activates the power window regulator motors to close all power windows while the key is turned..

    • Similarly, when the driver side door is unlocked, turning and maintaining the driver side door key cylinder in the unlock position for 2.3 seconds or more will cause all power windows to open.
    Wireless transmitter-linked open and close When the certification ECU receives an lock or unlock signal from the door control transmitter for 3 seconds or more, the main body ECU sends an operation permission signal to the ECU in the power window regulator motor. The ECU that receives the signal controls the power window regulator motor to close or open all the power windows.
    Entry lock switch-linked close When the door ECU receives a lock signal from the lock switch on the door outside handle for 3 seconds or more, the main body ECU sends an operation permission signal to the ECU in the power window regulator motor. The ECU that receives the signal controls the power window regulator motor to close all the power windows.
    Diagnosis

    • Function where the ECU in the power window regulator motor detects malfunctions in the power window system and makes a diagnosis.

    • The power window switch light blinks to inform the driver of the malfunction.
    Fail-safe If the pulse sensor(s) (Hall IC(s)) in the power window regulator motor malfunctions, the power window auto up/down function is disabled.