Did you get rid of your RGB headlights? Are they the ones in your profile pic?
Um ya... it ain't that easy. The DRL's are driven by a PWM signal, that's how they get brighter/darker when you turn the headlights on/off, plus can change the brightness through forscan also. What you would have to do, and what my idea was to try just never got that ambitious after I got them working off keyed power, is to run the PWM signal into a small, low voltage trigger relay, which would then give you 12V to run to whatever you want.Hooked it to Fuse 21 Headlight start fuse, it doesn't come on unless the truck is running, but that will work until I feel like pulling the grille and headlight out to get to the DRL wiring, unless someone knows an easier place to access the DRL power
Nope, still got em, just haven't swapped them into my new truck yet. Good catch on my wording, wondered if someone would catch that haha.
Ha! I was hoping you might be selling them. Anyway I think I may have asked before, but where did you have them customized? I would love to have the amber DRLs on my quad beams and fogs like yours.
so, from what I’ve tried so far, the pwm signal doesn’t play well with your standard 12v relay. The “on/off” of the signal doesn’t let the plunger stay engaged to actually trigger the relay and pass the 12v power from the battery.
Well... I might be willing to, I figured that might be what you were getting at haha. I have the idea in my head that I want to order a 24 Raptor, so if that comes true, I won't do much more to my 23 now and will need to offload these light eventually anyways, so will let you know. I got them done by Precision Retrofits and they did everything on them.
That's what I was afraid of, but are you trying to use a standard 30/40A relay? There is no way the pwm signal could trigger that. Have you measured the voltage coming off the pwm signal? Like I said, you would need to get a much smaller relay with a very low trigger voltage and long release time
the voltage is still 12v coming from the pwm circuit. Its just a sine wave set at 10% duty cycle(on 10% of the time, off the other 90%, this is the factory setting)
Yeah now I think I remember you pointing me in their direction and looked at them but never pulled the trigger since I didn't want to be without my headlights for several weeks if I sent mine to them to be customized. Anyway, if you do decide to part with them, let me know. Any pictures of them? Did you black them out and just add amber DRLs?
Maybe a solidstate relay
Good work. I figured it would be 12V, but based on the sensitivity of the relay, it might be enough to trip a small one depending on the duty cycle going into it. Yes good find on the playing with the DRL duty cycle, I've heard of that as well so thats why I never started messing with them. The DRL's on 21 trucks are already fragile enough as you see some have already gone out guys. You might be onto something using a solid state or something else to transform the signal, I think you're in the right direction now!
Ya, I was in the same boat so that's why I just bit the bullet and got a whole different set, plus I trade pretty often so didn't want to send them with my old one when it went back. Here is a good overview of them if you're in this FB group.
