FixVault

Central Electronic Module (CEM)

WARNING: This page is about a different car, the 2010 Volvo V70, 2009 Volvo V70, and 2008 Volvo V70. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Central Electronic Module (CEM)
GLL153112Courtesy of VOLVO CARS CORPORATION

The central electronic module (CEM) (4/56) is the master unit for the alarm.

The control module communicates with directly connected units, via the LIN and the controller area network (CAN). The control module has a number of sensors connected to it and determines what actions should be taken.