Sensor, Coolant Temperature: Description
WARNING: This page is about a different car, the 2018 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
- The Engine Coolant Temperature (ECT) sensor (1) is used to sense engine coolant temperature. The sensor protrudes into an engine water jacket and is located on the thermostat housing.
- The ECT sensor is a two-wire Negative Thermal Coefficient (NTC) sensor. Meaning, as engine coolant temperature increases, resistance (voltage) in the sensor decreases. As temperature decreases, resistance (voltage) in the sensor increases.