Home › Land Rover › 2021 › Discovery S › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Gateway Module (GWM) -- Discovery/L462 › General Information › Description And Operation › Diagnostic Trouble Code Index: Gateway Module (GWM) (G2165407) › DTC U0300-46: Internal Control Module Software Incompatibility - Calibration/parameter memory failure › Possible Causes