Not quite. According to the article you posted, Magnasteer didn't start up until 1996. I am still stuck in 1993.
I did some reading. It turns out there is a solenoid that boosts the output from the power steering pump to the rack. This solenoid is controlled by the MultiFunction chime module (yes, the door dinger, lol), that gets a speed signal from the PCM. 17-20mph is the magic number. Below that, it energizes the solenoid, and makes for the nice easy steering that makes life in the parking lot easier.
The Electrical Systems FSM actually has 9 pages specifically addressing this system alone, and gives very detailed explanations and troubleshooting information. FSM FTW!!!
On a related and completely annoying note, it was working fine today. Go figure...