A coolant temperature sensor (CTS) is a tool used to measure the temperature of the coolant in an inner combustion engine. It’s usually positioned within the engine block or cylinder head, and its job is to ship a sign to the engine’s digital management unit (ECU) indicating the present coolant temperature. The ECU makes use of this info to regulate the engine’s timing, gasoline combination, and different parameters to make sure optimum efficiency and gasoline effectivity.
A defective CTS can result in plenty of issues, together with: