I've seen a couple with bad pumps. No wiring problems yet. If your wipers
sweep when you activate the pump, you've already eliminated the switch and
some of the wiring, as well as most of the entire power side of the
circuit. If the pump doesn't run, that eliminates the clog idea.
The bad news is that every so often, Hyundai gets a batch of bad parts.
The good news is that when they figure out they've got an issue, they
adress it. And trust me, that is almost always faster than five people
coming together on usenet figuring out they've all had the same problem.