Home >> Jaguar >> 2014 >> XF Base >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code (DTC) Index DTC: Rear Differential Control Module (RDCM) -- XF/X250 >> Diagnostic Trouble Code (DTC) Index DTC: Rear Differential Control Module (RDCM) >> Description And Operation >> DTC U0001-81: High Speed CAN Communication Bus - Invalid serial data received >> Possible Causes