Home >> Land Rover >> 2013 >> Range Rover Supercharged >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code Index DTC: Electric Steering Column Lock Control Module (ESCL) -- Range Rover/L405 >> Diagnostic Trouble Code Index DTC: Electric Steering Column Lock Control Module (ESCL) >> Description And Operation >> DTC B100D-42: Column Lock Authorization - General memory failure >> Possible Causes