Check fuse, bulbs, and flasher relay.
Check fuses and turn signal flasher
it is behind the glove box.
More than likely the Flasher Relay is defective. Replace it.
replace your flasher relay
If your turn signal flashers stopped working, play with the emergency flasher button on top of the steering column. Our 97 Sable turn signals quit once and luckily I pushed the emergency flasher button in and out many times and the signals have worked ever since. But the emergency flashers don't work, but I can live with that.
if only the turn signals are not working,you should replace the flasher can
Check the ground wire for your lights, located on the frame somewhere Lisa
Defective Flasher Relay.
Replace the Turn Signal Flasher Relay.
Replace the flasher relay as it has failed. One flasher relay controls them both. Look near the fuse panel for the relay. Purchase one so you will know what you are looking for.
replace turn signal flasher