One of four things can cause a turn signal not to work. Either the turn signal switch assembly, a bad bulb, a bad fuse, or a bad turn signal flasher.
Check for a bad socket Turn signal flasher? Switch at steering column?
Check the fuse, check the bulbs, check the flasher relay.
You could have a faulty bulb. Check for contact in both bulbs if they are new.
Most likely a bad turn signal flasher or blown fuse
have you tryed all the fuses then check if the bulbs are good
If the turn signal bulbs light but will not flash, the flasher relay is defective, replace it.
Could be the control stick for the blinkers. If the lights work, try replacing the stick or checking out the signal path for that blinker
The turn signals and hazards are on separate relays. You need to replace the signal relay. If that doesn't do the trick, look into your turn signal switch.
If the turn signal lights come on but will not flash you have a defective flasher relay. Replace the relay.
If it's not the fuse then it's the multi-function switch (the turn signal stalk) that went dead on you.
1995 hond accord in cold weather turn signal does not work?
Believe it or not, I have had to disconnect the cig lighter in order for the tail lights to work. Sounds far fetched but it does work!