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03-31-2020, 01:00 PM | #1 |
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Join Date: Jan 2011
Location: New Mexico mountains
Posts: 30
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LED taillights and how to wire turn signals
After long searching for help, I suspect there is a smart person out there. I have 2 LED tail lamps from from Mac's (with a black wire: parking lamp and a green wire:for Stop and Turn signals). The old turn signal unit is an old one model 9000-ST which does not have a separate wire for Stop lamps. It does have a wire for Left turn and a wire for Right turn hookup to those lamps.
I would like to use the brightest part of the lamp (green wire) for both turn and stop functions. How do I wire up those rear lamps so when wiring is tied together for Stop lights, the Turn signal function doesn't cross over to the other side and make both rear lamps blink? Thanks- roughrider in NM |
03-31-2020, 01:43 PM | #2 |
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Join Date: Oct 2019
Location: Wake Forest NC
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Re: LED taillights and how to wire turn signals
Maybe this will help, you'll most likely need to include resistors in the line for the LED's to function correct
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03-31-2020, 02:52 PM | #3 |
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Join Date: May 2010
Location: Largo Florida
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Re: LED taillights and how to wire turn signals
There should be a whole lot of info in search. This is talked a lot.
Any good turn switch will do what you want. A Signal-stat unit [ usually now a 900] looks somewhat period and they work well as well as hook up easily. Stop lights should work through the turn lights together, which ever turn light is on the and the stop light switch is activated, the opposite stop light will light while the proper turn light flashes. Usually LEDs will not flash correctly with a thermal flasher, I just use higher candle power front bulbs to load the flasher rather than use in-line resistors. Its hard to find an electronic flasher that will work correctly on 6v. |
03-31-2020, 02:59 PM | #4 |
Member
Join Date: Jan 2011
Location: New Mexico mountains
Posts: 30
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Re: LED taillights and how to wire turn signals
Patrick, I found a good variety of Electronic flashers (6 & 12 volt)
that work with LEDs. Bulbs too. I may have to get at different turn signal unit with more wires to solve the stop lamp wiring issue? |
03-31-2020, 03:52 PM | #5 |
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Join Date: Jul 2011
Location: Redondo Beach, CA
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Re: LED taillights and how to wire turn signals
Roughrider, how many wires does your "turn signal unit" have? Most of the newer one have seven.
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03-31-2020, 04:27 PM | #6 |
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Join Date: Jan 2011
Location: New Mexico mountains
Posts: 30
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Re: LED taillights and how to wire turn signals
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My turn signal unit only has 4 wires, nothing for the brake light switch. I may have to get a 7 wire unit, maybe a Signal-Stat 900? Ideas anyone? thanks |
03-31-2020, 05:11 PM | #7 |
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Join Date: Nov 2010
Location: Anchorage, Alaska
Posts: 9,115
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Re: LED taillights and how to wire turn signals
I bought a Signal Stat unit from Sacramento Vintage Ford. It was wired specifically for the Model A. Easy to install. Complete wiring instructions. Has worked flawlessly now for 10 years.
__________________
Alaskan A's Antique Auto Mushers of Alaska Model A Ford Club of America Model A Restorers Club Antique Automobile Club of America Mullins Owner's Club |
03-31-2020, 05:18 PM | #8 |
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Location: Redondo Beach, CA
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Re: LED taillights and how to wire turn signals
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03-31-2020, 05:39 PM | #9 |
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Join Date: Jun 2010
Location: San Antonio, Texas
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Re: LED taillights and how to wire turn signals
Most turn signal systems have an interconnect with the brake light in the signal control switch so that when a signal direction is selected, the brake light function circuit is opened for that side while the opposite side is still functional for the brake light. If it isn't set up this way then it isn't a very good system. It's important to have the diagram for the one you have. They may not be all the same. Most modern ones are the same but the older ones is anyones guess. It may take a while to figure out an old unit that has faded cloth covered wire.
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03-31-2020, 06:22 PM | #10 |
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Join Date: Jun 2017
Location: Walla Walla, WA
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Re: LED taillights and how to wire turn signals
I agree with Rotor wrench. You have to take the output of the brake light switch to the brake light input to the turn signal switch and it then controls which lights or both get the brake light power. The brake lights serve a dual purpose. Brake and turn signal. If the turn signal is not being used at all, both lights would light upon braking. If the left turn signal is being used, the left rear light will blink but not show braking while the right light will indicate braking. Bottom line is that the turn signal switch on the steering column does all the work.
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03-31-2020, 06:55 PM | #11 | |
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Join Date: May 2010
Location: Largo Florida
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Re: LED taillights and how to wire turn signals
Quote:
Not knowing what you are trying to use, it may require you getting a new/different turn switch. I happen to like Signal-stat. They are not hard to install. There may now be electronic flashers that actually work, I've not found one [ I think I have 3], but, it was quite some time ago. So I just stick with what I know works. |
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04-01-2020, 08:56 AM | #12 |
Member
Join Date: Jan 2011
Location: New Mexico mountains
Posts: 30
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Re: LED taillights and how to wire turn signals
Thanks for all the excellent replies. To do what I want, it seems i must dump the 4-wire turn signal unit and get a 7-wire.
My setup for my '31 Dlx Coupe (6 volt pos gnd): Cowl lamps have the Turn Signal Adapter Kit with a new reflector that has a larger hole in center and socket for dual filament bulbs. Mac's p/n 28-21082-1 on sale now at a discount. Other vendors have this same kit. Replaced the Cowl bulb with an LED from LEDlight.com, SKU 97465W...1154 Bulb LED BAY15D Base, 6v, 2.6 watt, white 6000K. This is search light bright, hard for anyone to miss. Bulb is big but just fit thru reflector without touching the glass lens. Tail lamps are all red LED, original look body. They are made by UPautoparts.com and sold by many vendors. See photo. UP part #FTL2831LED6-AL And, yes these babies are Very bright. 2-wire like the original; tail lamp and WOW brake light circuits. The electronic flasher (for LEDs) came from LEDlight.com. SKU 84787, Flasher LED 6 volt Pos ground 3 terminal. It works without using any load resistors. These guys know Model As and are very helpful on the phone for vintage cars, 6 & 12 volt LED bulbs, flashers etc. Have stuff I could not find anywhere else. Don't forget to attach the small ground wire from this flasher to the body. Next: Order a 7 wire turn signal unit. This should allow me to use the tail lamps as Both brake and turn signals with out adding extra lamps to the bumper. Hoping. Thanks all. |
04-01-2020, 09:42 AM | #13 |
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Join Date: Jul 2016
Location: Orangeville Illinois
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Re: LED taillights and how to wire turn signals
Here is some more refference
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04-01-2020, 09:49 AM | #14 |
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Join Date: Jul 2016
Location: Orangeville Illinois
Posts: 461
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Re: LED taillights and how to wire turn signals
And one more for added confusion..........
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04-01-2020, 03:07 PM | #15 |
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Join Date: May 2010
Location: Largo Florida
Posts: 7,225
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Re: LED taillights and how to wire turn signals
You're on the right track.
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04-05-2020, 01:46 AM | #16 | |
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Join Date: Feb 2017
Location: Iowa City, IA
Posts: 84
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Re: LED taillights and how to wire turn signals
Quote:
http://www.turnswitch.com/Turnsignal.htm |
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