3023322 - E3050 ELECTRIC FRONT WINDOWS - Description
Description
The control unit built into the controls unit on the door controls
the operation of the driver's and passenger's electric window motors.The driver's and passenger's motors are
controlled in both manual and automatic mode, in accordance with
the following logic:For the driver's window:
- 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).
for the passenger's window:
- closing is only manual;
- opening is automatic, the same as for the driver's window
In the case of inconsistent commands issued
simultaneously from the driver's and passenger's side, 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 of the controls unit on
the door also acquires information on the possible presence of an
obstacle during movement of the window during closing via the anti-collision
seals: in this case the window travel stops immediately and is reversed;
this happens in both manual and automatic operation.The circuit is controlled by the services
relay and protected by two 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.When the ignition is off, the Body Computer
keeps the relay activated - which also supplies the door mirrors
- 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 opened or
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
.