You need to locate your flasher, usually near your fuse box; is sounds like your flasher is burnt out for that side.
Check the fuses
Turn signal indicators are lights. The flash to tell you, or indicate, that a turn signal is on, and which way the lights are flashing.
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When it flashes fast it means you have a burned out bulb omn that side. Check all you lights and you'll find the one that's burned out.
Replace the turn signal flasher relay.
Bad ground.
A strobe signal is the name for any signal that flashes on and off. For example the turn-lights on a car. Certain lights such as some leds aren't actually on all the time but flash faster than the eye can see, that is also a strobe signal.
If neither signal light works, the flasher may very likely be the problem. The hazard lights and the signal lights work off different flashers.
Flasher relay is defective.
Usually a bad turn signal flasher
was jeep in accident and repaired? sounds like crossed or shorted wires
Burned out bulb Faulty socket and/or wiring/ ground Faulty turn signal flasher Faulty turn signal Switch