2892549 - E3050 ELECTRIC FRONT WINDOWS - Functional description
Functional description
The control unit M40 is supplied directly from the battery at pin 8 of connector B through the line of the maxifuse J/B2 of B5 via the bridge fuse B19 and via the ignition (INT) - pin 7 of connector B - from line of the bridge fuse B26. Pins 4 and 20 of connector A provide the earth. The specific supply for the electric windows reaches the control unit M40 at pins 15 and 16 of connector A from the line for maxifuse J/B2 of B5 protected by fuse B22 . The switches H40 (left electric window), H41 (right electric window in left front door) and H50 (right electric window in right front door) have a supply controlled by the ignition (INT) from the line of the bridge fuse B26.All the switches have specific LEDs which light up when they are supplied.When the switches are operated, they send control signals (positive and negative) to control unit M40:
- at pins 10 and 11 of connector A from switch H40 ;
- at pins 5 and 18 of connector A from switch H41 ;
- at pins 2 and 6 of connector A from switch H50 ;
The control unit M40 operates the electric windows on the basis of the logic described previously:
- from pins 8 and 9 of connector A it sends commands to the driver's electric window motor N60 ;
- from pins 1and 3 of connector A it sends commands to the passenger electric window motor N61 .