Temperature switches and sensors are important components of a vehicle's cooling and heating system. They work together to ensure that the engine and passenger compartment stay at a consistent safe temperature. The termperature switch is responsible for turning on and off the cooling fan when the engine reaches a certain temperature. The temperature sensor monitors the temperature of the engine and sends this information to the vehicle's computer system, which can adjust the cooling or heating as needed. These components are crucial for maintaining the proper functioning and longevity if a vehicle's engine and cabin temperature control.