Thanks for responding James. I don't really trust this dealership to be honest with me or to be able to repair my car. For that reason I went to my credit union and stopped payment on my check. If only a Volvo dealership can fix it then I may need to take it out of town. However, since it does the same stuff after another CEM it may be something like a faulty ground wire, a short, a switch or who knows what. I know it doesn't have aftermarket HID headlights. anyhow, it sure doesn't seem like it would be so complicated to make windshield wipers work properly.