323000920 - E3050 FRONT ELECTRIC WINDOWS - FUNCTIONAL DESCRIPTION (LOW trim level)

FUNCTIONAL DESCRIPTION

The system is managed by the electric windows control unit M190 and by the Body Computer M001.The power supply from pins 30 and 17 of connector C of the junction unit under the dashboard reaches pins 1 and 10 respectively for the power supply for the electronics for the control unit and the driver''s electric window N060 and the passenger side electric window N061. These power supplies, protected respectively by fuses F47 and F48 located in B002, are operated by relay T13, in turn supplied along the line protected by fuse F2 of the engine compartment junction unit B001 (pin B of connector B) and operated by the Body Computer M001.The control unit M190 receives a power supply directly from the battery excluded during starting (INT/A) at pin 7 of connector A via relay T12 of B002. This line is protected by fuse F52 of B002 (pin 12 of connector C).The ignition-controlled power supply (INT), useful for backlighting the electric window controls on the driver''s door H044 and the passenger door H050, reach pin 17 of connector A of M190. This line is protected by fuse F49 of B002 (pin 21 of connector C).    See E2535 CONTROL LIGHTSThe system power supply reaches pin 18 of connector A of M190 protected by fuse F36 of B002 (pin 13 of connector C).The electric windows control unit M190 is earthed, from pins 2 and 9 of connector A, respectively for the management of the driver''s electric windows N060 and passenger side electric windows N061.The control unit M190 receives the door opening signal, at pin 13 of connector A from the Body Computer M001 (pin 13 of connector B) for a possible interruption in the automatic movement of the windows after the key off.The raising and lowering signals coming from the electric window switches H044 (driver''s front door) and H050 (passenger side front door) are coded through resistive dividers in order to be able to use a single connection; control unit M190 (connector A) receives the following in particular:- from pin 4 of H044, the driver''s window raising/lowering signal (pin 14);- from pin 2 of H044, the passenger side window raising/lowering signal (pin 4);- from pin 4 of H050, the passenger side window raising/lowering signal (pin 15).The control unit M190 provides a reference earth for the two control units from pin 3 of connector A (pin 5 of H044 and pin 1 of H050).The control unit M190 provides a power supply, form pin 16 of connector A, which is useful for backlighting the controls H044 (pin 3) and H050 (pin 3).According to the signals receives from the controls on the door, the control unit M190 controls the following through special combinations:- from pins 12 (raising positive) and 11 (lowering positive) of connector A, the driver''s electric window N060;- from pins 19 (raising positive) and 20 (lowering positive) of connector A, the passenger side electric window N061.The Body Computer receives a power supply from the battery, via the line protected by fuse F1 located in the engine compartment junction unit B001. It also receives an ignition-controlled power supply (INT) from the ignition switch H001. The reference earth reaches pins 10 and 19 of connector A of M001.