PAS Relay

Update the Toyota schematic of the parts refers to the item as a the power steering brush.
You're responsible for your own actions and this is a mechanical summary of the service to a HE power steering not working; as in the MR2. I have done to my and other vehicles and solved the problem.
Best to refer to the BGB for detailed support. Another resource is the parts schematic of the power steering electric pump, looking for the power steering pump brush.
Summary below;
Remove key from ignition, disconnect battery.
Front trunk, locate on the left side of the battery the electric power steering pump, it has a black rubber cover. Lift the black cover and there will be four black nuts around the outer rim /side of the pump, all at 90 degrees to each other around the pump. Remove one black nut at a time (approx 17 spanner from memory). Remove the black nut Slowly and carefully, there will be a spring to the back of the nut and a small metal end. The black nut / Spring / metal end is now known as the electric power steering pump brush (that is its real name) aka what I called bushes. The metal end will have a concaved end. Take smooth sand paper (180 grit) and wipe the concave surface. Some say spray electrical contact cleaner, however I have just wiped with sandpaper, and do not like to introduce chemicals. You may find grooves in the end of the metal, try to smoothen lightly. Do not try to sand away the metal piece in changing its shape, you are only refreshing the surface. If you have ever sanded the contact points in a distributor cap, this is similar application. Wipe with a clean cloth. Put the brushes (metal part with the spring with the nut end) back in the pump.
Repeat for all four "brushes (black nuts/Spring/metal end).
Repeat the crucial, handle one at a time with care. Replacing the electric pump is at a similar cost to GOLD - ridiculously expensive for what it is - take care in the above.