312001101 - E5070 PARTICLE FILTER SYSTEM - FUNCTIONAL DESCRIPTION
FUNCTIONAL DESCRIPTION
Engine management control unit M010 controls and governs the entire electronic ignition and injection system and the particulate filter.The direct battery power supply arrives via a line protected by fuse F18 of the engine compartment junction unit B001 (pin 5 of connector B) at pin 50 of connector A of M010 . An ignition-operated supply (15/54) is received at pin 23 of connector A of M010 from a line protected by fuse F16 of junction unit B001 (pin 12 of connector B).The main injection relay T09 of junction unit B001 controls the entire system: the coil receives a power supply from the line protected by fuse F18 of engine compartment juntion unit B001 and is energized by an earth signal from pin 80 of connector A of control unit M010 and sends a power supply:
to pin 5 of connector A of the control unit, via the line from fuse F17 of B001;
to pins 4 and 6 of connector A of the actual control unit, via the line from fuse F22 of B001.
The engine management control unit M010 receives signals from the different sensors thereby keeping all the engine operating parameters in check, in particular there are two specific sensors for the management of the operation of the particle filter:
the differential pressure sensor K187 receives a power supply from the control unit M010 from pin 14 of connector A and a reference earth from pin 33 of connector A and sends a signal proportional to the pressure to pin 49 of connector A of M010;
the downstream catalyzer temperature sensor K190 receives a reference earth from pin 11 of connector A of the engine control unit M010 and supplies a signal proportional to the temperature measured at pin 91 of connector A of control unit M010.
The control unit M010 (pins 64 and 40 of connector A) is then connected, via the C-CAN, to the Body Computer M001 (pins 44 and 45 of connector B); the Body Computer M001, via a dedicated gateway, sends this information, via the B-CAN, to the instrument panel E050, thereby controlling the switching on of the "pollution filter blocked" and minimum engine oil pressure" warning lights flashing and "EOBD failure" warning light and the related displays.