Why Can Radiator Fans Have 2 Speeds

A car's cooling system relies not only on the radiator but also on a radiator fan controlled by a low- and high-speed relay. As the engine temperature rises, the system gradually activates the fan to maintain a stable temperature and prevent overheating. This video simply explains how electricity flows from the fuse box to the relay, then drives the radiator fan at two speeds. how a car radiator fan works, car cooling system, radiator fan relay, high-speed car relay, low-speed car relay, how a radiator fan works, automotive education, car cooling components