Home › Jaguar › 2012 › XJ Base › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code (DTC) Index DTC: Vehicle Dynamics Control Module (VDCM) -- XJ/X351 › Diagnostic Trouble Code (DTC) Index DTC: Vehicle Dynamics Control Module (VDCM) › Description And Operation › Vehicle Dynamics Control Module (VDCM) › U201A-51 Control Module Main Calibration Data - Not programmed › Possible Causes