Home >> Land Rover >> 2014 >> Range Rover Base >> Repair and Diagnosis >> General Information >> DTC Index >> Diagnostic Trouble Code Index DTC: Seat Module - Driver/Passenger/Rear - Left/Right (DSM/PSM/RSM) -- Range Rover/L405 >> Diagnostic Trouble Code Index DTC: Seat Module - Driver / Passenger / Rear - Left / Right (DSM / PSM / RSM) >> Description And Operation >> DTC B1543-87: Front Seat Switch Pack - Missing message >> Possible Causes