Home › Land Rover › 2013 › Range Rover Base › Repair and Diagnosis › General Information › DTC Index › Diagnostic Trouble Code Index DTC: Body Control Module (BCM) -- Range Rover/L405 › Diagnostic Trouble Code Index DTC: Body Control Module (BCM) › Description And Operation › DTC U201B-54: Control Module Calibration Data #2 - Missing calibration › Possible Causes