Home >> Land Rover >> 2017 >> Discovery SE >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Diagnostic Trouble Code Index DTC: Tailgate Control Module (TGCM) -- Discovery/L462 >> Diagnostic Trouble Code Index DTC: Tailgate Control Module (TGCM) >> Description And Operation >> DTC U3000-49: Control Module - Internal electronic failure >> Possible Causes