Home >> Jaguar >> 2013 >> XF 3.0, AWD >> Repair and Diagnosis >> Steering >> Electronic Steering >> Diagnostic Trouble Code Index DTC: Electric Steering Column Lock Control Module (ESCL) -- XF/X250 >> Diagnostic Trouble Code (DTC) Index DTC: Electric Steering Column Lock Control Module (ESCL) >> Description And Operation >> DTC B100D-42: Column Lock Authorisation - General memory failure >> Possible Causes