Tail, Signal and Brake loght wiring - Hot Rod Forum : Hotrodders Bulletin Board
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Old 08-18-2012, 10:31 PM
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Tail, Signal and Brake loght wiring

Okay, here is what I have and I think I need a little assist in wiring these tail lights. Lights are leds and have 4 wires. Ground, turn, brake, tail. My wiring harness only has turn, tail, and ground. My turn signals go through the stop light switch, which, when turns are on, it magically overrides brake light and flashes on that side.

I know ground goes to ground, turn goes to turn, and tail goes to tail, but, what do I do with the brake wire from the tail light assembly?? Just not use it, or splice in with turn???

Thanks, guys

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Old 08-19-2012, 05:41 PM
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Some systems have seprate brake and turn lights. I'd play with it and find the look your looking for. Putting the the 2 wires together and connecting to your single stop/turn wire won't hurt anything in my opinon.
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Old 08-19-2012, 08:05 PM
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See attached schematic for turn, brake, taillight wiring.
The brake light circuit goes to the turn signal switch. This is what your harness has.
If you can add another wire directly from the brake light switch to the LED assembly, the brake lights will work even when the turn signals are on.

vicrod
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Old 08-20-2012, 12:32 PM
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Alright. Thanks, guys for the assist
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Old 08-20-2012, 01:11 PM
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2 choices:
tie the stop and turn together will give you brighter stop lights
or if you have a separate 3rd brake light circuit in your harness use that for the brake circuit. youd still have the brake light function through your turn signals too.
i'd try the second idea to see if it works right and give sufficient turn signal lights
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