Upper Electronic Module
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Volvo S80, 2005 Volvo S80, 2004 Volvo S80, 2003 Volvo S80, and 2002 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.
The upper electronic module (4/70) transmits remote control signals about which button on the remote control has been pressed to the central electronic module via the Controller area network (CAN).