Home › Land Rover › 2014 › Range Rover Base › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Suspension Control Module (CHCM) -- Range Rover/L405 › Diagnostic Trouble Code Index DTC: Suspension Control Module (CHCM) › Description And Operation › DTC U201A-57: Control Module Main Calibration Data - Invalid/incomplete software component › Possible Causes