Line Pressure Control: Notes
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.
The oil pump discharge pressure (line pressure) is controlled by the line pressure linear solenoid and the line pressure is regulated to an optimum level corresponding to the vehicle's running conditions.