DTC U3000-55: Control Module - Not configured: Action

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2018 Land Rover Range Rover, 2017 Land Rover Range Rover, 2016 Land Rover Range Rover, 2015 Land Rover Range Rover, and 2014 Land Rover Range Rover. However, it is still accessible from the selected car via links, so may be relevant.

Using JLR approved diagnostic equipment, reconfigure the audio amplifier module with the latest level software
This DTC will occur once if a new module is installed. Clear the DTC, cycle the ignition state to off. Lock the vehicle (to ensure the infotainment system has reset). Unlock the vehicle, cycle the ignition state to on. Retest the system