Home › Land Rover › 2017 › Discovery SE › Repair and Diagnosis › Steering › Steering Control Systems › Diagnostic Trouble Code Index DTC: Electric Steering Column Lock Control Module (ESCL) -- Discovery/L462 › Diagnostic Trouble Code Index DC: Electric Steering Column Lock Control Module (ESCL) › Description And Operation › DTC B100D-51: Column Lock Authorization - Not Programmed › Possible Causes