Home › Land Rover › 2017 › Discovery Sport HSE › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Infotainment Master Controller/Infotainment Slave Controller (IMC/ISC) -- Discovery Sport/L550 › Diagnostic Trouble Code Index DTC: Infotainment Master Controller/Infotainment Slave Controller (IMC/ISC) › Description And Operation › DTC U3000-04: Control Module - System internal failures › Possible Causes