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Custom sequential turn signals?

3164 Views 4 Replies 3 Participants Last post by  6stang02
Okay, I've seen a lot of talk on this but nobody seems to give a real answer other than saying to just buy a sequential kit.

Fair Warning: This is all semi advanced electrical work.

Personally, I don't like how the kits work. I want my turn signals to sequence but I don't want my brake lights to sequence. So in order to get that to work properly you would need to first cut the brake interrupt wire for the tail lights (as described here http://www.allfordmustangs.com/forums/4-6l-tech/209951-how-install-working-cobra-tail-lights-gt.html) and we would get power for the brakes from the third brake light (making sure to use diodes)

There is still another problem though. Now if we step on the brakes, they will all instantly light up rather than sequence, but it will override the sequencing which makes it so that we wont have rear turn signals during braking. So now we need a circuit that only lets the power from the brake light make connection with the tail lights if that light is not blinking for the turn signal.

I think if I order the parts (resistors, diodes, capacitors, 555/556 timers, and relays or transistors) I could make the the sequential tail light circuit for $5 per side (as a splice in kit). Then I could slightly modify a "pulsed to constant" circuit to only allow the brake to send power to the tail lights if the turn signal hasn't been activated within 1 or 2 seconds.

I plan on attempting all of this and doing a real write up, but I wanted to know if anyone else has tried this, or is interested. The only thing that stopped me from buying the sequential kit a few years ago was that I didnt like the brake lights sequencing, but now I may have finally found the answer.

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OPTION 2

Might be less friendly to diy-ers or people who dont know much about computer code, but I think the same could be achieved in a smaller package (and maybe even for cheaper) by using an arduino. It would certainly be less time soldering and the timing would be easier to adjust. You'd still have to cut the brake interrupt wire if you wanted to keep the lights from sequencing when braking.

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www.webelectricproducts.com they sell kits, so much easier than doing the things you are saying. Their kits are about $70 and they come with "smart-sequence" technology which only allows the turn signals to sequence, not the brake lights. Like the 2010+mustang.
www.webelectricproducts.com they sell kits, so much easier than doing the things you are saying. Their kits are about $70 and they come with "smart-sequence" technology which only allows the turn signals to sequence, not the brake lights. Like the 2010+mustang.
+1 on ^

Why do all that work when it's been done already?!?
Hmm, I had no idea kits existed that eliminated sequencing brakes. Still, I am a young guy and I like having projects to work on. I know I can make 2 sequencing circuits (one per side) for about $20. And I'm refining my design so I wont have to cut any wires (except on the tail light harness of course)

I'm really curious how that "smart sequence" works though. I know you connect both sides together with a phone cord so they must communicate.
Go to the webelertric website and then go to the sequentials for mustangs and more info on the smart sequence and then there is a list of questions one of them is "I dont want my brake lights to sequence is this possible" click that and it will tell you how to make them sequence only on turn signals.
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