Locate and check out the emergency flasher. I don't know where yours is, but should be under the dash near the steering column.
Not long ago my emergency flashers would not work and after troubleshooting some it turned out to be that turn signal flasher. I tried an aftermarket "universal" replacement and it just didn't fit where it was supposed to and I didn't want to deal with modifying things. I went to my local Ford dealer and took the bad one with me. Looked up and ordered. Couple of days later I had a new relay and the flashers worked again.
You might check here on goggle and see if this helps any.
Chris in Virginia
2006 Sunseeker 3100SS/LTD
2008 Smart Passion Cabriolet TOAD
1986 Honda Helix (Original owner)