Turn Signal Flasher—The signal flasher is usually located under the dash area on the driver side. The flasher does as its name implies, flashes the turn signal indicator.  The clicking noise you hear when you use the turn signals also comes from the flasher unit.  There can sometimes be two separate flasher units, one for the turn signals and the other for the emergency signals.  When the flasher fails it will usually light the turn signal indicator instrument panel, but will not flash it.

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