I need a little help. A while back the intermittent setting on my windshield wipers stopped working (80 toy). Today I installed another switch and same thing. I opend up the original switch and every thing looks fine so i cleaned the contacs an reinstalled it. Now im wondering is there anything else that could be causing this? the manual shows a relay but if that was bad wouldnt i have no wipers at all? anyone know whats up?