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 B11C4-23: Boot/Trunk Close Button - Signal stuck low >> Possible Causes