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Discussion Starter · #1 ·
I've got a 2016, and I'm upgrading most of the lights to LEDs. I have the brake and parking in. Rear turns in with resistors. All function perfectly (and look awesome). Now I plugged in the front turn signals with no resistors, and they work... No hyperflashing. Do I need to add resistors to it? The whole point of resistors is to get rid of the hyperflashing. There's no real estate inside the housing for resistors, so I would imagine they would have to go on the harness if needed. I'm also slightly concerned cause I just got the Headlight Fault message... Anyone done this before?
 

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Ive had LEDs in the front and rear turn signals for a few years. I only put resistors in the rear and none of the lights hyperflash. Not sure what your headlight fault is but I don't think its related to the blinkers.

I have a 2014 ST2
 

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Discussion Starter · #3 ·
Yeah I have resistors on the back, and they work fine. The error popped up while driving. It said "Headlight Fault. Service Required." All the lights were still on when it happened. I saw a thread on here about that with no solution. I just started thinking maybe it's related. But it may be more connected to the eyebrow not turning on when the door opens now... Electronic gremlins on a 3 month old car...
 

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Interesting, I just ordered LED turn signals for front and back but ordered a resister for each light, as I thought that's what was needed. Sounds like that's not the case. If you find a solve for your headlight issue, keep us posted.
 

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Yeah I have resistors on the back, and they work fine. The error popped up while driving. It said "Headlight Fault. Service Required." All the lights were still on when it happened. I saw a thread on here about that with no solution. I just started thinking maybe it's related. But it may be more connected to the eyebrow not turning on when the door opens now... Electronic gremlins on a 3 month old car...
You should put the stock bulbs back in one at time and see if the error goes away. If you get them back in and the error is still there, its a different issue. If the error goes away when you put the stock bulbs back in, you might want to look at getting better LEDs or Canbus LEDs.
 

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Discussion Starter · #6 ·
You should put the stock bulbs back in one at time and see if the error goes away. If you get them back in and the error is still there, its a different issue. If the error goes away when you put the stock bulbs back in, you might want to look at getting better LEDs or Canbus LEDs.
My thoughts exactly. My eyebrow was out again this morning, but I have yet to see the error since it originally popped up. I'm gonna put the stock turns back in the front and see if that changes anything. I'm thinking that it's unrelated right now though. The eyebrow going out is what I think the problem is now. Possibly a bad harness or maybe headlight assembly. I'll continue to update what I find on this cause I think a lot of people might eventually run into these sort of issues
 

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Discussion Starter · #7 ·
***UPDATE***

Took my car to the Ford. They had it for two days and an "Electrical Specialist" had to look at it. They found that there was a connector in the wiring harness that was loose and causing the system to short. Unfortunately, the specialist was gone when I got to pick up the car, so I don't know exactly what connector they found. I'm hoping it's not just something that is rattling loose. But maybe this will help with people getting this error or issues with headlights
 
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