Home >> Land Rover >> 2016 >> LR4 Base >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code Index DTC: Central Junction Box (CJB) -- LR4/L319 >> Diagnostic Trouble Code Index DTC: Central Junction Box (CJB) >> Description And Operation >> DTC B100D-81: Column Lock Authorization - Invalid serial data received >> Possible Causes