Home › Jaguar › 2012 › XJ Base › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code (DTC) Index DTC: Transfer Case Control Module (TCCM) -- XJ/X351 › Diagnostic Trouble Code (DTC) Index DTC: Transfer Case Control Module (TCCM) › Description And Operation › Transfer Case Control Module (TCCM) › U3000-47 Control Module - Watchdog/safety microcontroller failure › Possible Causes