69 Dart turn signal problem

Buy a electronic flasher and install, go from there. Might be a bulb or two not working. like this http://www.vintageautogarage.com/Turn-Signal-Flasher-Electronic-2-Pin-p/40006-upi.htm?gclid=CJzZ4t-wo8oCFQ6SaQod0CQMnQ&st-t=adwords

Standard flashers need a load, bulbs connected to work. A bulb out it wont build up enough heat to flash. Electronic flashers will flash no matter what the load.
http://www.vintageautogarage.com/Tu...gclid=CJzZ4t-wo8oCFQ6SaQod0CQMnQ&st-t=adwords