DTC U0046-55: Vehicle Communication Bus C - Not configured: Action

Using the Jaguar Land Rover approved diagnostic equipment, reconfigure the adaptive cruise control module with the latest level software
Cycle ignition. Using the Jaguar Land Rover approved diagnostic equipment, clear the Diagnostic Trouble Code(s) and retest. If the fault persists, install a new adaptive cruise control module
Refer to the relevant service information and calibrate the cruise control system