Home › Land Rover › 2016 › Discovery Sport SE › Repair and Diagnosis (Single Page) › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Suspension Control Module (Sum) -- Discovery Sport/L550 › Diagnostic Trouble Code Index DTC: Suspension Control Module (Sum) › Description And Operation › DTC U201A-57: Control Module Main Calibration Data - Invalid/incomplete software component › Possible Causes