Thanks for the response. I can have just the one set on and they flicker. I can also have all 3 sets on and only that one set will flicker. Same even with swapping them around to other upfitters. So i dont think its wiring as the other lights work fine on those same circuits. So i'm thinking its the connector on the light or something within the lights themselves. Just weird that its a set that came together.
If you put a good light in series with a flickering light, does the “good” light also flicker?
It sounds like you may have ruled out the wiring / ground theory, if you moved the entire circuit to the good lights and got no flickering, assuming they are the same current draw, then the northward wiring should be good(enough). I’d first do a visual inspection on each light. Look for fraying of the wires, kinks, bends, ties - anything that would create abnormal resistance. Check connectors for corrosion, bad fitment- maybe redo them entirely on general principle.
What I’m getting at with the testing is, to try and isolate if it is one light only that is actually causing this OR is it truly both lights that flicker, regardless. Hence the suggestion to put one of the good lights
behind the blinker, in the circuit to see if the whole circuit begins flickering - blinker and good light both OR if just the blinker flickers and the good light works normally.
Don’t put a flickering light behind a good light in the circuit, I don’t think that tells us anything, I’m suggesting:
current setup:
battery or switch power / ground to first blinking light + 2nd blinking light.
result: they flicker.
test setup:
Battery or switch power / ground to one of the 2 blinking lights + a known good light.
Result: first light flicker? y/n 2nd light flicker ? y/n
I would test this with both of the blinking lights.