Line Pressure Linear 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 line pressure in response to electrical current instructions from the TCM. The line pressure is regulated to an optimum level according to the driving condition.