Private CAN Bus - Monitoring
WARNING: This page is about a different car, the 2019 Jaguar XF. However, it is still accessible from the selected car via links, so may be relevant.
The following components are connected to the ECM through a private CAN bus. The ECM provides a gateway, for communication to the vehicle CAN bus
- Heater control unit
- NOx sensor control unit(s)
The following CAN communication monitoring applies to these components
- Signal time-out
- Signal check sum
The DEF injector, DEF pump, temperature and level sensors are hardwired to the ECM and do not involve CAN communication