2753523 - E3050 ELECTRIC FRONT WINDOWS - Functional description

Functional description

The electric window switches H042 (driver's side) and H043 (passenger side) send signals for raising/lowering the window by means of a negative signal with reference to earth C020 connector B.
Earth C020 is fastened to the passenger compartment floor and is located near the right front wheel arch (footwell area).

The body computer node M001:

  • receives the signal for raising the driver's side window from pin 14 connector H;
  • receives the signal for lowering the driver's side window from pin 24 connector H;
  • receives the signal for raising the passenger side window from pin 15 connector H;
  • receives the signal for lowering the passenger side window from pin 25 connector H.
Having received the commands, the body computer node supplies the electric motors for raising/lowering the window. To raise the window, the body computer node supplies electric motors N060 and N061 from pins 3 (driver's side) and 4 (passenger side) connector M. To lower the window, the body computer node supplies electric motors N060 and N061 from pins 2 (driver's side) and 5 (passenger side) connector M.
The supply lines for the electric window motors are protected by fuses F47 and F48; the raising/lowering function is managed by two specific relays, incorporated in the body computer node.
The electric window switches H042 and H043 receive an ignition-operated supply at pin 4 for the interior lighting.
Door couplings D030 and D031 are housed in the lower part of the pillar (right or left depending on the coupling involved), near the door cable duct.