Home >> Land Rover >> 2021 >> Range Rover Base >> Repair and Diagnosis >> General Information >> Specifications Index >> Diagnostic Trouble Code Index: Anti-Lock Brake System (Abs) -- Range Rover/L405 >> General Information >> Description And Operation >> Diagnostic Trouble Code Index - DTC: Anti-Lock Brake System Control Module (Abs) (G2261284) >> DTC U0100-87: Lost Communication With ECM/PCM "A" - Missing message >> Possible Causes