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 #
81980-02010 on it. Any way to test it?
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
Thanks to those who suggested I check whether my turn signal
problem might have some link to the hazard lights.
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