DTC U0194-4A: Lost Communication With Digital Audio Control Module B - Incorrect component installed: Action

WARNING: This page is about a different car, the 2015 Jaguar XF, 2014 Jaguar XF, and 2013 Jaguar XF. However, it is still accessible from the selected car via links, so may be relevant.

Check the serial number of the digital radio control module is valid (as installed at the factory), if the part has been installed by a dealer the installation routine has not been performed correctly. Configure the digital radio control module using the manufacturer approved diagnostic system. Clear the DTC and retest the system