It could be as simple as the relay. I would replace that first. It is fairly inexpensive at 5 - 8 bucks compaired to the wiper/turnsignal which should run about 90 - 130 depending on where you get it from.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.