Home >> Land Rover >> 2017 >> Discovery Sport HSE >> Repair and Diagnosis >> 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