The Engine Coolant Temperature Switch is used to monitor the temperature of the engine coolant. It measures the temperature of the coolant as it circulates through the engine.Attributes:• Enhances visibility and legibility of license plates in various lighting conditions• Helps maintain the engine temperature within the desired rangeApplications:The Engine Coolant Temperature Switch also plays a role in controlling the operation of the engine cooling fan. When the coolant temperature rises above a certain level, the switch activates the cooling fan to help dissipate heat from the radiator.