A coolant temperature sensor, or CTS, is a tool used to measure the temperature of the coolant in an inside combustion engine. This data is then utilized by the engine’s digital management unit (ECU) to regulate the engine’s air-fuel ratio, ignition timing, and different parameters. A defective CTS can result in quite a lot of issues, together with poor engine efficiency, elevated emissions, and even engine injury.
There are a couple of other ways to check a coolant temperature sensor. One widespread technique is to make use of a multimeter to measure the resistance of the sensor. The resistance of a CTS will differ relying on the temperature of the coolant. By evaluating the resistance of the sensor to a recognized good sensor, or by consulting the producer’s specs, you possibly can decide if the sensor is functioning correctly.