Home › Land Rover › 2021 › Discovery Sport S › Repair and Diagnosis › General Information › Specifications Index › Diagnostic Trouble Code Index DTC: Chassis Control Module (CHCM) - Discovery Sport/L550 › Diagnostic Trouble Code Index - DTC: Chassis Control Module (CHCM) (G2309000) › Description And Operation › DTC U201A-57: Control Module Main Calibration Data - Invalid/incomplete software component › Possible Causes