Electric Booster Heater
WARNING: This page is about a different car, the 2015 Jaguar XF, 2014 Jaguar XF, and 2013 Jaguar XF. However, it is still accessible from the selected car via links, so may be relevant.
The electric booster heater is installed in the heater assembly, on the downstream side of the heater core. It consists of ceramic coated thermistor elements, rated at 1.25 kW, and a micro-controller. Electrical power for the booster heater is supplied by the BJB via a 150 A megafuse installed under the RH front seat.