Home › Jaguar › 2012 › XK 2D Convertible › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Occupant Classification System (OCS) -- XK/X150 › Diagnostic Trouble Code Index DTC: Occupant Classification System (OCS) › Description And Operation › Occupant Classification System [OCS] › DTC U2016-51: Control Module Main Software - Not programmed › Possible Causes