Home › Jaguar › 2014 › XF Base › Repair and Diagnosis › Transmission › Transmission Control Systems › Diagnostic Trouble Code Index DTC: Transmission Control Module (TCM) -- XF/X250 › Diagnostic Trouble Code (DTC) Index DTC: Transmission Control Module (TCM) › Description And Operation › DTC B1087-82: LIN Bus "A" - Alive/sequence counter incorrect/not updated › Possible Causes