Home › Jaguar › 2017 › XF S, AWD › Repair and Diagnosis › General Information › DTC Index › Diagnostic Trouble Code Index DTC: Gateway Module (GWM) -- XF/X260 › Diagnostic Trouble Code Index DTC: Gateway Module (GWM) › Description And Operation › Gateway Module (GWM) › DTC B11DB-49: Battery Monitoring Module A - Internal electronic failure › Possible Causes