Module I/O Signal
WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.
For the electrical specification, refer to "Control Module I/O Signal" of "COCKPIT CONTROL (DIAGNOSTICS)". Ref. to COCKPIT CONTROL (DIAGNOSTICS)>CONTROL MODULE I/O SIGNAL>ELECTRICAL SPECIFICATION