Home › Jaguar › 2014 › XF Base › Repair and Diagnosis (Single Page) › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Integrated Suspension Control Module (ISCM) -- XF/X250 › Diagnostic Trouble Code Index: Integrated Suspension Control Module DTC: Integrated Suspension Control Module (ISCM) › Description And Operation › DTC U201A-57: Control Module Main Calibration Data - Invalid/incomplete software component › Possible Causes