System Block Diagram
WARNING: This page is about a different car, the 2021 Subaru Ascent. However, it is still accessible from the selected car via links, so may be relevant.
For system block diagram, refer to "System Block Diagram" in "INFOTAINMENT SYSTEM (DIAGNOSTICS)". Ref. to INFOTAINMENT (DIAGNOSTICS)>General Description>SYSTEM BLOCK DIAGRAM .