Possible Causes
WARNING: This page is about a different car, the 2021 Land Rover Range Rover Sport, 2020 Land Rover Range Rover Sport, and 2019 Land Rover Range Rover Sport. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Circuit reference - BTN DIAGNOSTIC O/P/ECALL/BCALL BTN/BTN INPUT COMMON
- Telematic switchpack eCall and/or bCall functions inoperative
- Telematic switchpack circuit open circuit or high resistance