Your flasher unit could be bad if even your hazards or emergency lights don't work.
Check that and if that is not it, you could have gotten a short circuit in the system and burnt all bulbs which is less feasible but still possible.
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SOURCE: 1997 honda accord turn signals don't work but fuse is fine
There is a flasher unit in the fuse box. You just pull it out and buy a new one at a parts store. Take the old one with you make sure they are the same.
The directional switch is bad. The wiring has a short it seems in your case
SOURCE: Brake lights stopped working. Running lights ok,
I solved this problem on a similar Camry by tracing the wiring to an intermittent open circuit at the flex point near the left trunk hinge. where the bundle moves with the opening and closing of the trunk lid.
Carefully cut the bundle wrapping and check the wires. Splice in reparis for any damaged wires and carefully route and re-wrap the bundle.
SOURCE: Neither turn signals work on 1999 volvo s80
Mine was doing the same thing. As a temporary fix, I pulled the 5 amp fuse to the steering column and put it back in , this broke the continuity like a reset. Even if the fuse seems fine with a fuse tester, just pull it out and put it back after one minute and walla.
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