Front Seat Heating
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.
The seat heater elements only operate when the engine is running. Power for the heater elements is supplied from a comfort relay, which is controlled by a hardwired ignition on signal from the Passenger Junction Box (PJB). Each seat cushion heater element contains a Seat Heater Control Module (SHCM) which is connected via a LIN bus to the ATCM. The SHCM also controls the power supply to the backrest heater element.
Front seat heating selections made on the Touch Screen (TS). The seat icon on the TS will indicate if heating is selected.