Power relay (built into the EPS control unit)
WARNING: This page is about a different car, the 2011 Acura TL, 2010 Acura TL, and 2009 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.
When the system is operating normally, the CPU turns the power relay on, and the power is provided to the FET bridge If the CPU detects a failure in the system which has the demand to shut down the system, the CPU turns the power relay off