Home >> Land Rover >> 2014 >> LR4 Base, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Diagnostic Trouble Code Index DTC: Instrument Cluster (Ic) -- LR4/L319 >> Diagnostic Trouble Code Index DTC: Instrument Cluster (IC) >> Description Of Operation >> DTC B100D-64: Column Lock Authorization - Signal plausibility failure >> Possible Causes