July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!
Location Of Components
WARNING: This page is about a different car, the 2012 Volvo S80 and 2011 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Locating Power Steering Control Module (PSCM)
Courtesy of VOLVO CARS CORPORATION
The figure shows position of Power Steering Control Module (PSCM).