DTC U3000-04: Control Module - System internal failures: Action

WARNING: This page is about a different car, the 2018 Land Rover Range Rover and 2017 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 gateway module with the latest level software and retest. If the fault persists, clear the DTCs, lock the vehicle and wait two minutes. Unlock the vehicle and retest. If the fault persists, install a new body control module/gateway module assembly