Home › Jaguar › 2017 › XF S, AWD › Repair and Diagnosis › General Information › DTC Index › Diagnostic Trouble Code Index DTC: Deployable TOWBAR Control Module (DTCM) -- XF/X260 › Diagnostic Trouble Code Index DTC: Deployable Towbar Control Module (DTCM) › Description And Operation › Deployable TOWBAR Control Module (DTCM) › DTC U0037-87: Vehicle Communication Bus B - Missing message › Possible Causes