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Discussion Starter #1
When I turn on my turn signals they will flash once correctly ont the dash board then both left and right flash simultaneously at a dimmer illumination. The actual turn signal lights on the car are working correctly. I do have LED replacement bulbs in the actual turn signals and normal bulbs in the dash lights. Any Ideas what might cause this?
 

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Just Some Dude in Jersey
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13,781 Posts
You need an electronic LED flasher relay. There are cheap kinds that just plug in and that our suppliers sell, but sometimes they don't do the trick. For the best 100% results you want to get the kind that has an extra wire sticking out of it that you attach to ground.
 

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Just Some Dude in Jersey
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13,781 Posts
I'M NOT SAYING THIS IS THE ONE YOU NEED, but this is what they look like. Round, see-through, with a wire sticking out. Pick the type that has the same # and configuration of prongs that your present Opel relay has. This might be the one you need, I don't know, it was just the first one I found that looked right. You might be able to find one cheaper.

https://www.ebay.com/itm/Painless-Performance-80230-LED-Flasher-Module-Relay/141658252180?epid=235678465&hash=item20fb7d6394:g:Ak4AAOSwpbJVSQvR
 

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Discussion Starter #4
I can find all kinds of 2 and 3 prong ones. The one that is being replaced is 4 prong. TBB 26 2x21w-12v 4DB 002 479-01
 

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Opeler
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3,562 Posts
You are experiencing known GT issue, called double flash. There is easy fix.

Cut the black/yellow wire off the flasher terminal and ground it. It can be done without removing instrument panel.
That will eliminate double flash but will cause L.H. indicator lights to blink when R.H. signal is used and the opposite. Fix it by swapping them.

LED bulbs require electronic flasher. Good one is model EP35.
 
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