I would change the bulb before I spent anytime tracking that issue.

I had a car where the wire was pulling tight on the connector and it behaved similarly.

??

 

A bad bulb somewhere will cause that issue. Check all signal, parking and brake light bulbs first.

 

X2. One of your bulbs is out. If not you have a faulty blinker module or the CAN bus thinks you have a faulty bulb, maybe because you installed and LED bulb with out the required resistor.

 

Not sure if this helps but when I put led turn signals in the front they started to blink way faster front and rear . I just left it cause it doesn't bother me but I think it has something to with not having enough resistance in the current. My 4-ways blink regular speed, more resistance. So maybe some kind of resistor going bad ? Don't know much about JKs but that's what happened in my TJ. Hope that helps.

 

You all ROCK!

No led lights here.

I'll start checking bulbs.

Thx for the fast response.

 

YES! Fixed it. After I lifted the jeep I adjusted my headlights. I had the grill off. To do that the driving light need to be unplugged.
I never re plugged them.

But now I know, fast blinker = bad bulb.

Thx

 

But now I know, fast blinker = bad bulb. Thx

I think my 1964 Buick Special had this warning feature. Actually - can't think of a single vehicle I have owned foreign or domestic that didn't blink fast when a bulb burnt out.

 

Its a warning as other's have said that one of your bulbs is out. The blinker flashes quickly on your dashboard per the side of the bad bulb.

 

Good to know.
Thx

 

lol my reply is pointless I see as I now see the last several post. Well...good it's taken care of. :rofl:

 

Not pointless. When I read that I realized, what your saying is, it's a warning system and not just a malfunction. If that makes sense. Lol
It blinks normal for 5 seconds then goes fast. Funny it did that on both sides. Obviously both plugs disconnected.
Thx

 

Some vehicles blink at a slower rate, or not at all, when a bulb is out. Old style blinkers were a bi-metallic strip that would have to heat up due to the current flow through the circuit. If a bulb was out, current flow in the circuit decreases (depending upon the circuit design) and the bi-metallic strip would take longer to heat up. Most vehicles now do not even have a flasher at all, they are a function of the body control module and the click noise you hear is coming from the vehicle speakers (usually the left front).

 

Yep that's a sign of a bad bulb