Home › Jaguar › 2018 › XF S, AWD › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Transfer Case Control Module (TCCM) -- XF/X260 › Diagnostic Trouble Code Index DTC: Transfer Case Control Module (TCM) › Description And Operation › Transfer Case Control Module (TCM) › DTC P0603-09: Internal Control Module Keep Alive Memory (KAM) Error - Component failures › Possible Causes