Control Module I/O Signal: Wiring Diagram
WARNING: This page is about a different car, the 2015 Subaru Outback and 2015 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.
Refer to "CAN Communication System" in the wiring diagram. <Ref. to COMPUTER DATA LINES (Legacy), COMPUTER DATA LINES (Outback), CAN Communication System.>