Home › Land Rover › 2014 › Range Rover Base › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Image Processing Module B - Low Line (IPMB - Low Line) -- Range Rover/L405 › Diagnostic Trouble Code Index DTC: Image Processing Module B - Low Line (IPMB - Low Line) › Description And Operation › DTC U201A-51: Control Module Main Calibration Data - Not programmed › Possible Causes