Replacing the rear electronic module (REM): Notes
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 rear electronic module (REM) is a separate unit in the relay box in the cargo compartment.
CAUTION:
New software can only be ordered when the control module is installed in the car. VIDA reads off the new control module identity which is required to order the correct software.
Release the relay and fuse box. See Exposing the integrated relay/fusebox in the cargo compartment .