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Solved- LED Turn signals not working when park lamps on

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Old Sep 10, 2024 | 05:49 PM
  #1  
hessm70's Avatar
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Car: 1988 Pontiac Trans Am GTA
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Solved- LED Turn signals not working when park lamps on

So I thought I had this whipped but it seems I do not. I bought a Brave Tech sequential tail lamp wire harness popped in some LEDs and thought I had the tiger by the tail. With no park or headlamps on, the sequential tail lamps function correct.


Well turned on the park lamps/headllamps and no functioning turn signals. Turn indicators on the dash are both lit. So I thought well maybe the “no load” flasher is no good or not good enough. Bought two new ones and same thing. So I thought maybe it’s the led lights, replaced with candescent and no change. Any ideas! I assume the dash turn indicators are telling me a problem exists.

Would it be possible for there to be a ground issue that only shows up when the park lights are on? Seems like it wouldn’t work with or without the parks on.

Update- pulled off Brave Tech harness and replaced LEDs with incandescent bulbs. Turn signals work with park function on. I tried incandescents in the Brave Tech harness and it would not work either.

4am Update- not normal but dog got me up so….. fix these damn lights- I added a 50w 6ohm resistor across the turn signal and ground which faked the system out and fixed the issue. LEDs in on Brave Tech Sequential Harness.

Last edited by hessm70; Sep 11, 2024 at 02:09 PM.
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Old Sep 12, 2024 | 04:03 PM
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Re: Solved- LED Turn signals not working when park lamps on

Well, I was going to say to Post a Wiring Diagram of what you Installed so that we can assist you in correcting your issue...

But if you seem to have things under control than that is fantastic!
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