DTC B1B01-81: Key Transponder - Invalid serial data received: Action
WARNING: This page is about a different car, the 2018 Land Rover Discovery and 2017 Land Rover Discovery. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
To validate the repair firstly remove the battery from the Smart key and check that the vehicle can be started via the backup start procedure (holding the Smart key next to the immobilizer antenna unit and operating the stop start switch)
- Using the Jaguar Land Rover approved diagnostic equipment, perform routine - Start Authorisation Status