LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Volvo >> 2012 >> XC90 R-Design, FWD >> Repair and Diagnosis >> Restraints >> Passive Restraints >> Electrical Components - Design And Function >> Subwoofer Module (Sub) (2003-2008) >> Downloading Software And Replacing The Control Module
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Downloading Software And Replacing The Control Module

New software can be downloaded into the subwoofer module (SUB). When ordering software, the hardware and the software in the car is compared to the information in the Volvo central database. If the comparison is OK the software is downloaded to the control module.

If the comparison between the car and Volvo central database is not OK, the database is updated with the car configuration. When this is complete the software is downloaded.

The control module is located on the left-hand side behind the third row of seats.

After replacing the control module, the unique serial numbers of the control module are checked by the infotainment control module (ICM). The installed control module will not work if the serial number is incorrect.

Try turning the ignition off and on if there are problems after the software is downloaded and the control module is not working.

The MOST network is used for a total software reload.