Home >> Jaguar >> 2014 >> XF Base >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code (DTC) Index DTC: Headlamp Leveling Control Module (HCCM) -- XF/X250 >> Diagnostic Trouble Code (DTC) Index DTC: Headlamp Leveling Control Module (HCCM) >> Description And Operation >> DTC B1087-83: LIN Bus "A" - Value of signal protection calculation incorrect >> Possible Causes