939011612 - E3040 CENTRAL LOCKING - FUNCTIONAL DESCRIPTION (Low setup)

FUNCTIONAL DESCRIPTION

The locking/unlocking function for the doors is operated by the front doors control unit M66 connected via the CAN line to the Body Computer M1.Control unit M66 is supplied at pin 11 of connector D - by a line protected by fuse F36 of the junction unit under the dashboard B2 .Pin 19 connector B and 7 of connector D of M66 are earthed.The control unit M66 receives the following inputs:- the "locking" signals from the four knobs, at pin 23 of connector B of and 7 of connector C of M66;- the locking/unlocking signals from the emergency key pawl, at pins 24 and 25 of connector B of M66;- the negative signal from the locking/unlocking button, located in the controls on the tunnel H35, at pin 34 of connector A of M66.According to the control logic illustrated, the control unit M66 controls the geared motors for the four door locks and the fuel flap: the joint power supply for the motors is sent from pins 6 and 5 of connector D; the locking/unlocking motors (B/S) are operated from pins 4 and 2 of connector D; the dead lock motors (DL) for locks N50 and N51 are operated from pins 3 and 1 of connector D. N55, N56.The signalling LED E40 is lit up by a signal from pin 8 of connector C of M66, whilst a reference earth is sent from pin 6.The activation of the inertia switch I50 is indicated at pin 17 of connector D of the Body Computer M1 : this signal, as described previously, causes the opening of the doors.