Lately upon startup of my car my windshield wipers do not work. I get no power to anything on the wiper lever. No spray, no intermittant, just nothing. Then 2-3 minutes later they work just fine. I cannot figure this one out. Why would they just start working. Everything else works just great. The OBC does not even recognize they are non functional. Any ideas? I checked the archives and found nothing of help. Hope it is as simple as the mustard relay trick.