Defective Flasher Relay.
if only the turn signals are not working,you should replace the flasher can
Check fuse or turn signal flasher
Check or replace turn signal flasher
Start with the easy fixes first. Check your fuses. If your fuse that is labeled for the turn signals is not blown, then it is most likely the combo switch in your steering column that your turn signal switch is connected to.
Caheck the bulbs or the multi-function lever
The fuse i underneath the driver seat and under the controller
YOU NEED TO REPLACE THE TURN SIGNAL FLASHER. IT WILL BE LOCATED ON OR VERY NEAR THE STEERING COLUMN UNDER THE DASH.
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 the turn signals in the dash don't work, what about the outside front and rear turn signals? Working? Not working? If it's not working, replace the turn signal relay under the dash.
I have a '92 Dynasty and the turn signals quit working. The manual said that this happens because of a burnt-out bulb somewhere. Did you check those?
Check the flasher for the turn signals which is under the dash on the left side of the steering column . It is different from the emergency flasher.
my turn signals do not work in my 1992 Pontiac Firebird