DTC U3000-49: Control Module - Internal electronic failure: 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 the Jaguar Land Rover Approved Diagnostic Equipment, confirm correct calibration data and software versions and install as required. Clear the DTCs and retest
If the fault persists, disconnect battery and wait for at least 1 minute before reconnecting. Clear the DTCs and retest
If the fault persists, refer to the appropriate system wiring diagram and check the power and ground circuits to the module. Repair circuit as required, clear the DTCs and retest
If the fault persists, contact the Jaguar Land Rover technical helpdesk