Home › Jaguar › 2012 › XJ Base › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code (DTC) Index DTC: Rear Differential Control Module (RDCM) -- XJ/X351 › DIAGNOSTIC TROUBLE CODE (DTC) INDEX DTC: Rear Differential Control Module (RDCM) › Description And Operation › Rear Differential Control Module (RDCM) › P0606-47 Control Module Processor - Watchdog / safety MicroController failure › Possible Causes