Engine Coolant Temperature Sensor
WARNING: This page is about a different car, the 2019 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.
The Engine Coolant Temperature (ECT) sensor is located in the electric thermostat housing. The ECT sensor is sealed in the thermostat housing with an O-ring seal. The ECT sensor is a push fit in the thermostat housing and locked in position by an elastic clip.
The ECT sensor monitors the engine coolant temperature in the thermostat housing and uses the information to control the electric thermostat.
Operation of the ECT sensor is as described above for the radiator outlet ECT sensor.