Can be messy but works.
The best way to do this at home to take the low psi hose off the pump housing and rout it to a 5 gallon pail. You may have to plug off the low psi inlet into the power steering pump housing Buy about 1 gallon of the proper fluid . Have one person run the engine and ready to turn it off if need be. Now fill the pump housing and start the engine and let the old fluid flow in to the bucket. Keep pouring the new fluid in wile the engine is running flushing the system. Shut the engine off as soon as you run out of fluid. Put the low psi hose back on and top up with power steering fluid as needed. Can be messy but works.
Add turn the steering wheel from stop to stop while doing this as this vehicle has rack and pinion steering.![]()