323000369 - E3040 CENTRAL LOCKING - FUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTION

The door and luggage compartment locking/unlocking function is managed by the Body Computer.Body Computer M001 receives the following inputs:- lock/unlock signals from the aerial-receiver of remote control unit P093, which is connected to pins 43 (signal) and 31 (reference earth) of connector D;- lock/unlock signals from the key pawl in the driver''s door lock geared motor N050 (pins 3 and 4), at pins 16 and 28 respectively of connector B;- lock/unlock signals from the key pawl in the passenger side door lock geared motor N051 (pins 3 and 4), at pins 40 and 27 respectively of connector B.Body Computer M001 receives the door open negative input signals respectively:- at pin 11 of connector B (driver''s front door, via the internal contact at the geared motor N050 - pin 1 -);- at pin 34 of connector B (passenger-side front door, via the internal contact at geared motor N051 - pin 1 -);- at pin 22 of connector B (left rear door, via the internal contact at the geared motor N055 - pin 1 -);- at pin 35 of connector B (right rear door, via the internal contact at the geared motor N056 - pin 1 -).The door locking/unlocking controls are managed by the logic in the Body Computer M001. The supply line is protected by a dedicated fuse F38 located in the junction unit under the dashboard B002, whilst the reference earth is supplied via the track from pin 20 of connector A of B002 to pin 20 of the coupling for M001 with B002.According to the control logic illustrated, Body Computer M001 controls the geared motors for the door locks: the locking command is sent from pin 10 of the coupling with B002 (then going from pin 16 of connector C of B002), whilst the command for unlocking the locks for the driver N050 and passenger side N051 front doors, the left rear door N055 and the right rear door N056 is sent from pin 11 of the coupling with B002 (to pins 5 and 6 respectively of the geared motors).The deterrent LED E040 is lit up by a signal supplied by pin 15 of connector B of M001.The activation of the inertia switch I050 is indicated at pin 23 of connector B of the Body Computer M001 : this signal, as described previously, determines the unlocking of the doors.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.The Body Computer M001 is connected to the instrument panel E050, via the CAN line, to which it sends a signal that, when necessary, turns on the doors open warning light and, if the inertia switch I050 is activated, the general failure warning light with the buzzer signals and messages in the display.