3239462 - E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT - Functional description
Functional description
The engine control unit M10 monitors and controls the entire electronic injection system. Engine control unit M10 receives a supply controlled by the ignition (15/54) at pin 13 of connector B from the line protected by fuse B25 up to 2/99 or fuse F4 of the additional fuse box B98A from 2/99. The relay J10 controls the system supply: it is supplied by the battery, from the line for maxifuse EFI of B5 up to 2/99 or of B99 from 2/99, while the coil is supplied by the line protected by fuse B35 up to 2/99 or fuse F5 of the additional fuse box B98A from 2/99. Pin 46 of connector C of control unit M10 sends an enablement signal which energizes the relay J10 and sends a supply to the control unit, to pins 7, 8 and 1 of connector A (the line which goes from J10 goes to pin 1 is also protected by fuse B41 up to 2/99 or fuse F3 of the additional fuse box B98A from 2/99). The relay J15 is also supplied by the battery from the line of maxifuse EFI of B5 up to 2/99 or of B99 from 2/99; up to 2/99: pins 30 and 52 of connector C of control unit M10 send the signals which energize the relay J15 , which provides the supply to the fuel pump N40 , which is connected to earth via the inertia switch l50. In case of impact, this cuts off the circuit to prevent the danger of fuel delivery. from 2/99: a signal arrives from pin 52 of connector C of the control unit M10 which energizes the relay J15, which provides the supply for the electric fuel pump N40 which is earthed via the inertia switch I50 . In case of impact, this cuts off the circuit to prevent the danger of fuel delivery. The diesel pre-heating relay J17 is supplied by the battery via the lline protected by fuses B37 and| ... DATA ERROR - CROPPED TEXT | Ошибка данных - Текст обрезан ... |
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Functional description
Engine temperature sender unit K45 receives a reference earth from pin 27 of connector D of control unit M10 and supplies a signal proportional to coolant temperature to pin 36 of the same connector.Functional description
Engine temperature sender unit K36 receives a reference earth from pin 27 of connector D of control unit M10 and supplies a signal proportional to coolant temperature to pin 36 of the same connector. The same sender unit also supplies information to the temperature gauge and warning light See E4023 DASHBOARD CENTRE AUXILIARY EQUIPMENT() .Functional description
Air flow meter K41 receives a general power supply from pin 11 of control unit connector D and a reference voltage from pin 1. It sends pin 14 of connector D a signal proportional to air flow. K41 also contains an air temperature sensor: the sensor reference earth is supplied by pin 4 of connector D of M10 , while an air temperature signal is received by pin 23. Accelerator pedal K55 is fitted with two built-in potentiometers (a main one and a safety back-up). The first receives power and earth from pins 5 and 23 respectively of connector C of M10 and sends a corresponding signal to pin 10 of the same connector. The second receives power and earth from pins 21 and 8 respectively of connector C of M10 and sends a corresponding signal to pin 9 of connector C. Fuel temperature sensor K81 fitted on the return manifold measures the temperature of diesel leaving the injectors. It receives a reference earth from pin 1 of connector C of M10 and sends a fuel temperature signal to pin 24. The turbocharging sensor K82 records turbo pressure. It is supplied from pin 8 of connector D of M10 and receives a reference earth from control unit pin 7. The signal is sent to pin 6 of control unit connector D. The fuel pressure sensor K83 is responsible for providing the injection control unit with a feedback signal for governing pressure and injection duration. It receives power and a reference earth from pins 13 and 14 respectively of connector D of M10 ; it then sends the pressure signal to pin 24 of the same connector. The fuel pressure regulator N77 has the task of keeping the value of the fuel pressure in the accumulator constant. Both control signals are produced by pins 31 and 21 of control unit connector D. The EGR solenoid L30 controls exhaust gas recirculation. It is supplied from pin 37 of connector C of M10 and sends a signal to control unit pin 50. Pin 8 of connector C of M10 receives a signal from brake light switch I30 , ignition-operated (INT) through a line protected by fuse F1 in junction unit B1 . Pin 2 of connector C of M10 receives a signal from the clutch pedal switch I31 , also ignition operated (INT) by fuse F1 of junction unit B1 . The injectors N70 receive a power supply to enable opening from pins 1 (cylinders 1, 3 and 4) and 4 (cylinders 2 and 5) of connector E of M10 . The engine management unit sends commands to the injectors from pins 5, 9, 8, 7 and 3 of connector E, for cylinders 1, 2, 3, 4 and 5 respectively. The rev counter module| ... DATA ERROR - CROPPED TEXT | Ошибка данных - Текст обрезан ... |
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