Aftermarket LED

[Justin56]

I bought Fahren 9008/H13 LED headlights. I put them in when the truck (07 Ram 1500) is off they work just fine but with the truck running the low beam side both flicker, blink then go out. The high beam side works fine. I've tried other brand LEDs and they have not lasted more than a few days. These lights have the canbus built in. I have LED parking lights, foglights. taillights and even third brake light is LED. I'm beginning to think my truck doesn't like LED Headlights.

 

[Smokeybear01]

I understand they have the canbus built in, but I would still put resistors inline with the low beams. If resistors work, they might give you some longevity with the bulbs too. The canbus might be fooling the control module, but something isn't right or they wouldn't flicker. Besides, adding resistors is cheap and easy. Good luck.

I just did a little research on the Fahren bulbs that you have and it says that you might have to install a special decoder for your truck to avoid flickering. Did you? It should have come with the kit.