The turn signals on my 89 have stopped working. When i turn the blinkers on left or right nothing happens at all. All other lights work. Running, stop, emergencies. I have replaced all the bulbs and checked them all with a continuity tester. I believe i checked all the fusues. Is there a relay or flasher that i could have missed? I checked the ones i thought would be relevant and all is well with them. The jeep has sat for a while and they did work before. I dont want to tear into the column if i dont have to. Any ideas where to start? Any help is appreciated