Home >> Land Rover >> 2013 >> Range Rover Supercharged >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Diagnostic Trouble Code Index DTC: Restraints Control Module (RCM) -- Range Rover/L405 >> Diagnostic Trouble Code Index DTC: Restraints Control Module (RCM) >> Description And Operation >> DTC U0001-83: High Speed CAN Communication Bus - Value of signal protection calculation incorrect >> Possible Causes