169002431 - E5030 PETROL ENGINE ELECTRONIC MANAGEMENT - OPERATIONAL DESCRIPTION

Operational description

The engine management control unit M010 is connected directly to the battery earth A001 connector G from connector B pin 27, 28.The direct battery power supply is provided at pin 29 connector B, from the line protected by fuse F 18, housed in the engine compartment junction unit B001.

The ignition-operated supply is supplied:

  • to the engine management control unit M010, pin 47 connector B:
  • to the coil, incoming, for the relay T09 housed inside the engine compartment junction unit B001;
  • to the speedometer sensor K084, pin 3.
The engine management control unit provides a negative signal, at pin 15 connector B, to the relay T09 coil output.

When energized, the relay provides a direct battery power supply:

  • to the Lambda sensors K017 and K018 (at pins 4 respectively);
  • to the fuel vapour recovery solenoid valve L010 (pin 1).
  • to the ignition coils A030, connector A and B (at pins 1 respectively);
  • to the injectors N070, connector A, B, C, D (at pins1 respectively);
  • to the fuel pump motor N040 (pin 4).
With the engine started, the various sensors used in the supply system receive a direct power supply from the engine management control unit, exchanging all information relating to their function with it.

From connector A, the control unit M010:

  • at pin 62 receives the signals from the engine coolant temperature sensor K036;
  • at pins 54 and 68 it provides the power supply and reference earth for the built-in air temperature sensor K043;
  • at pins 55 and 75 it receives the absolute air temperature and pressure signals respectively supplied by sensor K043;
  • at pin 26 it controls the fuel vapour recovery solenoid valve L010;
  • at pin 8 it receives the engine oil pressure sensor signal K028;
  • at pins 57, 58, 64, 65 sends the commands to the engine idle actuator N074;
  • at pins 59 and 66 it controls the coils A030;
  • at pins 71, 72, 78, 79 it controls the injectors N070;
  • at pin 76 receives the signal from the throttle position sensor K056;
  • at pins 54, 68 provides the power supply and reference earth for the timing sensor K047;
  • at pins 53 and 67 supplies the engine rpm sensor K046;
  • at pins 56, 70 supplies the detonation sensor K050.

From connector B, the control unit M010:

  • at pins 20, 12 supplies the Lambda sensors K017 and K018 respectively;
  • at pins 8, 24 receives the signals from the Lambda sensors K017and K018 respectively;
  • at pins 1, 2 provides the reference earth for the internal resistances for Lambda sensors K017 and K018;
  • at pin 25 it is connected to the diagnostic socket.
    See E8010 DIAGNOSTIC MULTIPLE CONNECTORFrom pins 6, 32, connector B, the engine management control unit M010 is connected to the body computer node M001 via the CAN. The engine management control unit sends/receives the signals supplied by the various sensors used in the system via this line.For more details    See E1050 CAN CONNECTION LINESFrom connector C, the engine management control unit M010 is connected to injection control unit earth C060.