Which device measure engine temperature in a car system typically utilizes an analogue input?

The engine temperature sensor is a component that measures the temperature of the engine coolant and typically uses an analogue input to convey this information. This type of sensor often operates based on the principles of resistance temperature detectors (RTDs) or thermocouples, which generate a voltage that varies with temperature. The analogue output allows the engine's management system to continuously monitor the temperature, providing real-time data that is crucial for engine performance and safety.

The use of an analogue signal is essential in this context because it allows for a smooth and continuous range of temperature readings, which enables more precise control and monitoring. In contrast, other components such as the air conditioning system, electronic control unit, or GPS system either do not measure temperature directly or rely more heavily on digital input and output mechanisms for their operations.