Electrical Specification
WARNING: This page is about a different car, the 2017 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
Refer to the Control Module I/O Signal of the "Vehicle Dynamics Control System (VDC) (DIAGNOSTICS)". Ref. to BRAKE CONTROL (DIAGNOSTICS)>Control Module I/O Signal>ELECTRICAL SPECIFICATION .