Home › Jaguar › 2014 › XF Base › Repair and Diagnosis › Steering › Steering Control Systems › 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-51: Column Lock Authorisation - Not programmed › Possible Causes