Transfer Duty Solenoid
WARNING: This page is about a different car, the 2013 Subaru Forester, 2012 Subaru Forester, 2011 Subaru Forester, and 2010 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
This solenoid is mounted on the transmission control valve. This adjusts the pressure applied to the transfer in response to the duty instructions from the TCM. Torque distribution to the front and rear is controlled by properly controlling the engagement force of the transfer clutch.