Home >> Land Rover >> 2020 >> Defender 110 First Edition >> Repair and Diagnosis >> General Information >> Specifications Index >> Diagnostic Trouble Code Index DTC: Anti-Lock Brake System Control Module (Abs) -- Defender/L663 >> Diagnostic Trouble Code Index - DTC: Anti-Lock Brake System Control Module (Abs) (G3134779) >> Description And Operation >> Anti-Lock Brake System Control Module (Abs) >> DTC C0590-28: Brake Booster Motor "A" Phase U-V-W Current High - Signal bias level out of range/zero adjustment failure >> Possible Causes