323000379 - E3051 ELECTRIC REAR WINDOWS - FUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTION

The system is managed by the electric windows control unit M190 and by the Body Computer M001.The power supply from pins 1 and 2 of connector C of the junction unit under the dashboard reaches pins 11 and 20 respectively for the power supply for the left rear electric window N065 and the right rear electric window N066. These power supplies, protected respectively by fuses F33 and F34 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.All the remaining supply lines for the electric windows control unit M190 are described in the front electric windows system.    See E3050 ELECTRIC FRONT WINDOWS The electric windows control unit M190 is earthed, from pins 12 and 19 of connector B, respectively for the management of the left rear electric window N065 and the right rear electric window N066.The control unit M190 receives signals, at pins 8 and 13 of connector A, from the Body Computer M001 (pins 4 and 13 of connector B) for the central closing/opening of the windows via the remote control and the opening of the doors for the interruption in the automatic movement after the key off.The window opening/closing command from the remote control via the RF aerial P093 arrives via the signal supplied to pin 43 of connector D of M001. Aerial P093 is earthed via the line from pin 30 of connector D of the actual Body Computer.The raising and lowering signals coming from the electric window switches H044 (driver''s front door) and H053 (left rear door) and H054 (right rear door) are coded through resistive dividers in order to be able to use a single connection; control unit M190 (connector B) receives the following in particular:- from pin 10 of H044, the left rear window raising/lowering signal (pin 17);- from pin 4 of H053, the left rear window raising/lowering signal (pin 6);- from pin 11 of H044, the right rear window raising/lowering signal (pin 16);- from pin 4 of H054, the right rear window raising/lowering signal (pin 7);The disabling command for the rear controls H053 and H054 reaches pin 15 of connector B of H190 via the switch in the panel H044 (pin 9).Control unit M190 provides a reference earth for the driver''s electric window controlunit H044 (pin 5) from pin 3 of connector A and for the control units on the left rear H053 and right rear H054 doors (pin 1) from pin 18 of connector B.Control unit M190 provides a power supply from pins 14 and 5 of connector B respectively useful for backlighting the control unit H044 (pin 8) and the rear electric window controls H053 and H054 (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 2 (raising positive) and 1 (lowering positive) of connector B, the left rear electric window N065;- from pins 9 (raising positive) and 10 (lowering positive) of connector B, the right rear electric window N066.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.