The slow speed has never worked on my 69's windshied wipers, but last week the whole system went out (or won't stop). When i turn the switch off the motor won't quit. I got out the test light and found that the center wire is hot all the time. When i disconnected it the motor stopped. I also found that there was no power going to the wiper switch even though the fuse was not blown. I have no idea what is correct or not so hopefully yall can help me out. Thanks.