Disconnect the hose at the pump and see if it seems to be pumping anything out at all. Next step would be to take the pump off. It's located on the passenger side behind the fender. The fender is fastened by only a few bolts. Not sure exactly where they are on an XC but should be two at the front be...

I find the check valves in the lines just under the nozzles to be a VERY common problem. Those keep the lines from draining back so the squirters squirt immediately and you don't get much dry blade on glass time. The washer solvents dry out and plug them. Usually they have to be replaced. If you tak...