Home >> Land Rover >> 2021 >> Discovery S >> Repair and Diagnosis (Single Page) >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code Index DTC: Infotainment Master Controller/Infotainment Slave Controller (IMC/ISC) -- Discovery/L462 >> General Information >> Description And Operation >> Diagnostic Trouble Code Index - DTC: Infotainment Master Controller/Infotainment Slave Controller (IMC/ISC) (G1842475) >> DTC B1DE3-31: Multimedia Link - Driver Assistance Domain Controller - No signal >> Possible Causes