939011459 - E1060 A - BUS SERIAL LINE - FUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTION

The Body Computer M1 is supplied directly from the battery via line protected by maxifuse F1 of engine compartment control unit B1 at pin 18 of connector F that interfaces with underfacia control unit B2 .The Body Computer M1 receives an ignition-operated supply (INT) at pin 9 of connector F of the interface with the junction unit under the dashboard B2 : this signal is used, amongst other things, to "wake up the network".Pins 8 and 9 of connector I of M1 are earthed.The A-BUS serial line is connected from pin 25 of connector B of the Body Computer M1 with the alarm sensor P90 - pin 2 - and with th steering column switch unit H5 - pin 2 of connector A; the latter manages the signal from the rain sensor.The A-BUS serial line is connected from pin 7 of connector D of the Body Computer M1 with the volumetric/anti-tilt sensors, located in the courtesy light G10 - connector C - pin 4 - and with the rain and dusk sensors, incorporated in the electro-chromic interior rear view mirror P65, pin 3.