Home › Land Rover › 2019 › Range Rover Autobiography › Repair and Diagnosis › General Information › Specifications Index › Diagnostic Trouble Code Index DTC: Image Processing Module B (IPMB) -- Range Rover/L405 › General Information › Description And Operation › Diagnostic Trouble Code Index - DTC: Image Processing Module B (IPMB) (G2202346) › DTC U201A-54: Control Module Main Calibration Data - Missing calibration › Possible Causes