Home › Land Rover › 2021 › Defender 110 › Repair and Diagnosis › General Information › Specifications Index › Diagnostic Trouble Code Index DTC: Infotainment Gateway Module (IGM) -- Defender/L663 › Diagnostic Trouble Code Index - DTC: Infotainment Gateway Module (IGM) (G2805963) › Description And Operation › Infotainment Gateway Module (IGM) › DTC U3000-04: Control Module - System internal failures › Possible Causes