Home >> Jaguar >> 2011 >> XJ Base >> Repair and Diagnosis >> General Information >> DTC Index >> Diagnostic Trouble Code (DTC) Index DTC: Headlamp Leveling Control Module (HLCM) -- XJ/X351 >> DIAGNOSTIC TROUBLE CODE (DTC) INDEX DTC: Headlamp Leveling Control Module (HLCM) >> Description And Operation >> Headlamp Leveling Control Module (HLCM) >> B1D64-04 Left Headlamp Swivelling Motor - System internal failures >> Possible Causes