Home › Jaguar › 2016 › XF Premium, AWD › Repair and Diagnosis › Steering › Steering Control Systems › Diagnostic Trouble Code Index DTC: Electric Steering Column Lock Control Module (ESCL) -- XF/X260 › Diagnostic Trouble Code Index DTC: Electric Steering Column Lock Control Module (ESCL) › Description And Operation › Electric Steering Column Lock Control Module (ESCL) › DTC B100D-51: Column Lock Authorization - Not programmed › Possible Causes