Coolant Level Sensor
WARNING: This page is about a different car, the 2018 Jaguar XE and 2017 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.
If the coolant level in the expansion tank decreases below a predetermined value, the level sensor connects a ground to the BCM/GWM, which sends a message to the Instrument Cluster (IC) on the High Speed (HS) Controller Area Network (CAN) powertrain systems bus to display a warning message.
For additional information, refer to: Instrument Cluster .