Home >> Land Rover >> 2021 >> Discovery S >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code Index DTC: Tailgate Control Module (TGCM) -- Discovery/L462 >> General Information >> Description And Operation >> Diagnostic Trouble Code Index - DTC: Tailgate Control Module (TGCM) (G2016126) >> DTC U3000-4B: Control Module - Over temperature >> Possible Causes