ELECTRIC REAR WINDOWS - Description

5-door

Description

The electric rear control unit, together with the control unit incorporated in the controls unit on the front door, controls the operation of the driver's and passenger's electric windows motors.

The driver's and passenger's motors are controlled in both manual and automatic mode, in accordance with the following logic:

• if the button is pressed for between 60 and 300 milliseconds, the operation is manual: the window closes/opens only when the button is pressed;
• if the button is pressed for over 300 milliseconds, the operation is instead automatic: even if the relevant button is released, the window continues to close/open as far as the end of travel or until the anti-collision safety system intervenes, if applicable;
• a subsequent press on the button during movement of the window locks it in its current position;
• if the button is pressed for less than 60 milliseconds, it is ignored (it is considered to have been knocked accidentally).

Closing is only manual.

In the case of inconsistent commands issued simultaneously from two buttons, there is no movement.

At each press of the electric windows control buttons, a confirmation beep is emitted by the buzzer in the instrument panel.

The control unit incorporated in the controls unit on the driver's door also manages the electric rear windows control: if the specific 'REAR button is pressed, the two buttons located on the driver's door control the rear windows; if the button is pressed again - or 20 seconds after the last activation - control is passed on to the buttons located on the rear doors, while the buttons on the driver's door go back to controlling the front windows; the previous state of activation is indicated by an LED on the rear of the button coming on.

The control unit on the driver's door also manages the locking of the rear controls (protection), done by pressing the specific 'LOCK button: the lock status is indicated by an LED on the rear of the button coming on and the absence of illumination of the rear control buttons. With lock activated, no button controls the electric rear windows.

The control unit on the driver's door also acquires information concerning the possible presence of an obstacle during movement of the rear windows (closing) by means of the anti-collision seals: if this happens the window's travel is immediately stopped and reversed.

The circuit is controlled by the services relay and protected by two specific fuses, all located in the unit under the dashboard.

Movement takes place whether the ignition in ON or OFF.

With the ignition on, it takes place as described above; in addition during starting, this relay is temporarily deactivated.

With the ignition off, the Body Computer keeps the relay activated - which also supplies the door mirrors and electric windows - for 3 minutes, but deactivates it immediately when one of the two front doors is opened.

Movement is also disabled when the battery voltage is below 10 V.

The windows are automatically closed by the specific prolonged command (over 4 seconds) sent by the remote control button, if the ignition is off; for more details See E3040 CENTRAL LOCKING.