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 - GSM1 SIG
- Poor GSM coverage
- Poor sound quality sound when using telematic services
- Poor or no phone/telematic functionality
- GSM antenna circuit open circuit or high resistance