Corolla turn signals stopped working

Was the flasher getting louder or slower before it stopped? If so, that could be it. Still, you should check the Turn Signal fuse first. BTW, sure you have brake lights?

Thanks for the reply. Brake lights work ok, no strange sounds from flasher prior to sudden malfuction. Turn signal fuse looks ok (maybe I should swap it out anyway?).

I located what seems to be the flasher unit. It's got part #

First see if there is 12 volts coming to the flasher when the turn signal is activated. If there is, then apply 12 volts to the flasher and see if it clicks.

I don't have the tools (or know-how) to do that. Is there a simpler workaround or way to diagnose or rule out the most likely other cause? Thanks.

Diagnosing an electrical problem requires a lot of luck, a multi-meter, or at the very least a 12 volt test light.

If you do not have a test light or multi-meter, check the fuses in the passenger compartment and under the hood. If the fuses are all OK, then you need to be able to check for power and ground at various points in the circuit with the test light or meter. Some Corollas have been known to have bad combination switches (the turn signal/headlight switch), again, you will need the test light or meter and a wiring diagram.

Update: problem solved. It turned out to be a stuck hazard button on the dashboard. It was stuck just far enough in to disable the turn signals, but not far enough in to activate the hazard lights.

Thanks to those who suggested I check whether my turn signal problem might have some link to the hazard lights.