Scheme 1. K4M engine management system: 1 - injection system relay; 2 - fuse box in the cabin; 3 - fuel pump relay; 4 - top dead center sensor; 5 - control unit for the air conditioning system; b, 7,9,12.16 - instrument cluster; 8.10 - cabin electrical control unit; I - diagnostic socket; 13 - speed sensor; 14,15,18,21 - ignition coils; 17 - relay and fuse block in the engine compartment; 19 - coolant temperature sensor; 20.23 - relay of the electric fan of the engine cooling system; 22 - engine control unit; 24 - air conditioner compressor relay; 25 - knock sensor; 26 - refrigerant pressure sensor; 27 - throttle position sensor; 28 - intake air temperature sensor; 29 - electric throttle; 30 - diagnostic oxygen concentration sensor; 31 - pressure sensor in the intake pipe; 32,33,34,35 - nozzles; 36 - adsorber purge valve; 37 - control oxygen concentration sensor; 38 - pressure sensor in the power steering system