Home >> Land Rover >> 2013 >> LR2 Base >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code Index DTC: Central Junction Box (CJB) -- LR2/L359 >> Diagnostic Trouble Code Index DTC: Central Junction Box (CJB) >> Description And Operation >> DTC B1B01-81: Key Transponder - Invalid serial data received >> Possible Causes