Home › Land Rover › 2021 › Discovery R-Dynamic HSE › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Tow Bar Control Module (TBCM) -- Discovery/L462 › General Information › Description And Operation › Diagnostic Trouble Code Index - DTC: TOWBAR Control Module (TBCM) (G2016143) › DTC U3000-45: Control Module - Program memory failure › Possible Causes