Connection diagram of the heating, ventilation and air conditioning system (Start): 1 - mounting block of relays and fuses in the engine compartment; 2 - mounting block fuses in the cabin; 3 - control unit for ventilation, heating and air conditioning; 4 - fan operation mode switch; 5 - air conditioner switch; 6 - backlight; 7 - heater electric fan relay; 8 - additional resistor of the fan motor; 9 - ECU Sirius D4; 10 - ECU MR -140; 11 - ECU HV-240; 12 - heater fan motor; 13 - brightness control for instrument lighting
Connection diagram of the heating, ventilation and air conditioning system (ending): 1 - mounting block of relays and fuses in the engine compartment; 2 - mounting block fuses in the cabin; 3 - electric motor for the drive of the recirculation damper; 4 - air conditioner compressor relay; 5 - control unit for ventilation, heating and air conditioning; 6 - air conditioning compressor clutch; 7 - ECU Sirius D4; 8 - ECU MR - 140; 9 - ECU HV-240; 10 - rear window heating relay