Home >> Land Rover >> 2017 >> Discovery SE >> Repair and Diagnosis >> Body & Frame >> Towing Systems >> Diagnostic Trouble Code Index DTC: Deployable TOWBAR Control Module (DTCM) -- Discovery/L462 >> Diagnostic Trouble Code Index DTC: Deployable Towbar Control Module (DTCM) >> Description And Operation >> DTC B1549-23: Electrically Deployable Tow Bar Button - Signal Stuck Low >> Possible Causes