yes as soon as I hook up the fan wire it turns on. I don't even have the key in the ignition. I pulled the resister out and cleaned it up ,but it still turns on as soon as I hook up the wire to the fan. Do you think it could be the dash controls? I am very happy for your help. Change the dash controls next? I don't want to keep opening the hood to unhook the fan each time i stop! thanks again for any help. ted