Home › Land Rover › 2013 › LR2 Base › Repair and Diagnosis › Steering › Steering Control Systems › Diagnostic Trouble Code Index DTC: Electric Steering Column Lock Control Module (ESCL) -- LR2/L359 › Diagnostic Trouble Code Index DTC: Electric Steering Column Lock Control Module (ESCL) › Description And Operation › DTC B100D-64: Column Lock Authorization - Signal plausibility failure › Possible Causes