Front Wipers Not Working Except When Washing Button Pushed
 

I need some advice for my 2012 LS. The windshield wipers aren't working when turning the switch through the intermittent settings and also the low/hi positions. They do work if I push the wash button on the end of the switch. The fluid pump does work. I checked the fuses and moved a few around to be sure that wasn't the problem. Is a switch replacement the next step? It doesn't look hard to do nor is it expensive. Is there something else to check? Any help is appreciated.
Thanks!

take the switch apart and clean the electrical contacts

Thanks for the help! I ordered a replacement switch from Amazon for $28. That fixed it. The removal and replacing was really easy - pull the steering wheel all the way out and down, remove 4 screws on the bottom plastic, remove the top plastic, unplug the connections, remove the old switch, put the new one in and then put it all back together. I didn't need to remove the bottom plastic. There was enough wiggle room to get at what I needed to.