Replacing The Control Module
The Multimedia module (MMM) is installed under the left-hand front seat.
The Multimedia module (MMM) is preloaded with application software and map information.
When replacing the Multimedia module (MMM), software must also be downloaded via Volvo's central database to be able to write the new serial number to the Central electronic module (CEM).
After replacement of the multimedia module (MMM), the infotainment control module (ICM) checks its unique serial number. If the serial number is incorrect, the multimedia module (MMM) will not work. If the problem remains after software download, try switching the ignition off/on.