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 "Electric Power Steering System" in the wiring diagram. <Ref. to ELECTRONIC POWER STEERING (Legacy), ELECTRONIC POWER STEERING (Outback).>