Wrong Wattage lamps or wrong side repeaters have been retro fitted. Something is drawing too much current.
It's the guy in the trench coat in the back seat ;)
Blown fuse/? blown bulbs /?bad flasher.
The trunk
yes.under left side of dash
Could be a burnt out bulb or a bad flasher unit.
More than likely the Flasher Relay is bad.
Check for burnt out bulbs and could be a bad flasher as well.
Sounds like you need a new flasher.
Turn signal flasher may be defective
If you are asking about the hazard flashing unit, it should be located on the steering column brace. The turn signal flasher should be located on the left side under-dash panel, retained by a spring clip, or near the fuse box.
Bulbs or turn signal flasher, maybe even the switch.
My flasher was in the upper left hand side under the dash. Over the steering column. The four way flasher is the lower and the turn signals is the upper flasher.