Home >> Land Rover >> 2015 >> LR2 Base >> Repair and Diagnosis (Single Page) >> Steering >> Steering Column >> 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-29: Column Lock Authorization - Signal invalid >> Possible Causes