Turn Signal bulbs blinking too fast

Should not be fuse since that would just cause bulb to not work. Could be relay, but since it is intermittent, it may just be a loose bulb. If one bulb gets loose, it will cause the hyperblink since resistance is lower. It may just be slightly loose and moves around. Just a thought.
 
I would check the bubs to make sure they aren't loose. This would be the easiest. You can also get to the relays by removing the plastic cowls around the battery and windshield without having to remove the battery I believe.
 
For god sakes, can you just check the damn bulbs, 90% of the time that is the problem.

Once we determine that is not the case here, we can proceed to delving farther into the relay's fuses and such to find where your problem is.

But I am not going to outline half the electrical system of your car for you, before you check the bulbs which I am almost entirely sure are the problem...
 
I am curious about this problem as well. My 07 FX35 Sport version has a hyper flashing left signal, but only about 15-25% of the time. You can sit at a light with the signal on and it will go back and forth randomly from standard flash to hyper flash. When the signal hyper flashes on the dashboard, the outside lights are doing exactly the same front and rear. The right side signal is fine, no problems.

A few weeks ago after reading this thread, I replaced 100% of the bulbs on the outside of the car (except factory LED taillights). All were working before and all are working now just the same. None of the sockets were damaged or loose. But, I still have THE EXACT SAME PROBLEM.

I have heard that the relay is under the steering column panel and others say it is under the hood. Will try that next. I am wondering if there is an artificial factory load in the system somewhere to compensate for the factory LED lights. Perhaps that goes bad at some point. It is a really obnoxious problem and is making it annoying to drive the car.

I will report back if the flasher helps. Please let me know if anyone has any other ideas.
 
I would test it by swapping the tail light. I know the left and right tail lights are not exchangeable, but just plug it in and keep the car running and parked for a little bit for the test. Another test would be to buy a set of tail lights from ebay and swap out for a longer duration test. I have seen the standard red tail lights on ebay goes for about $60.
 
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