CENTRAL LOCKING - FUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTION

The door locking/unlocking function is controlled by the control units for the driver''s door M66, passenger side M67, all connected via the CAN line to one another and to the Body Computer M1.

Control units M66 and M67 receive a supply - at pin 11 of connector D - from the line protected by fuse F32 of underfacia control unit B2.

Pin 19 connector B and 7 of connector D of M66 and of M67 are earthed.

Control units M66 and M67 receive the following input:

- the "locking" signals from the knobs, at pin 23 of connector B of M66 and M67;

- door open signals at pin 35 of connector A of M66 and M67;

- 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 units M66 and M67 control the geared motors for the front door locks: the joint power supply for the motors is sent from pin 6 of connector D; the locking/unlocking motors (B/S) are operated from pin 4 of connector D; the dead lock motors (DL) for locks N50 and N51 are operated from pin 3 of connector D.

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.