Engine management system 21129: 1 - ignition switch (lock); 2 - main relay; 3 - battery; 4 - diagnostic connector block; 5 - instrument panel; 6 - electric fan of the engine cooling system; 7 - Electric fan control unit; 8 - electronic engine control unit; 9 - pressure sensor in the air conditioning system; 10 - air conditioning compressor clutch engagement relay; 11 - coolant temperature sensor; 12 - electromagnetic valve of the intake manifold length variation system; 13 - ignition coils; 14 - absolute pressure and air temperature sensor in the intake manifold; 15 - throttle assembly; 16 - oxygen concentration control sensor; 17 - spark plugs; 18 - camshaft position sensor (phase sensor); 19 - injectors; 20 - knock sensor; 21 - crankshaft pulley; 22 - crankshaft position sensor; 23 - diagnostic oxygen concentration sensor; 24 - electronic gas pedal (gas pedal position sensor); 25 - purge valve of the adsorber; 26 - brake pedal sensor; 27 - Clutch pedal sensor; 28 - fuel pump relay; 29 - fuel module