2022 Good Quality Chery Mvm 550 - Auto spare car parts cooling fan for chery radiator fan – Qingzhi

The working principle is: the air-conditioning computer receives the air-conditioning pressure switch, indoor and outdoor temperature, and other signals, and then transmits the air-conditioning signal to the engine computer through the bus. The engine receives the signal that can be turned on, controls the compressor, and controls the fan relay to pull in at the same time. When the pressure is increased by the environment and its own influence, the engine computer receives the air-conditioning computer signal and controls the fan high-speed relay to pull in, and the fan runs at high speed.