FixVault

DTC U201A-54: Control Module Main Calibration Data - Missing calibration: 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.
NOTE: Do not try to solely change the module fitted to the bladder hose as it is calibrated as an integral assembly with the seat cushion foam