I'm relaying what other people have reported when enabling the high or low beams as DRLs along with using the drop out option. The factory highs or lows don't use the drop out option.
You’d think they would because the whole purpose of the DRL dropout is so that when you have your DRL’s activated, you’d want the high beam or low beam DRL on that side to go out so that they’re not hindering the visibility of the turn signal on that side but who knows. Like I said, I’ve never selected my highs or lows as DRL’s so I have no idea.
I don't even think the factory projector headlights use the dedicated DRL wire, it was probably included for a headlight that didn't make it to production something that included a Halo or Brow light.
I’m 100% certain- at least on my truck anyways and it’s a 2018 that on the factory projector headlights, the dedicated DRL wire is most certainly used because like in my truck, whether I select “dedicated” or “turn signal” for designated DRL‘s, I will get the same exact result that makes my front amber LED strips as the DRLs. I’ve tried it both ways and even before I got Alfa when I had the dealer activate my DRLs, it showed on Alfa that “dedicated” was selected.
My take on why they did it this way is because like on the Durango, the 300 and a couple others that had factory white LED DRLs, they probably had the Ram headlights wired in such a way- even though they didn’t have white led DRLs, so that irregardless of what vehicle on the line that had to have the DRLs enabled, it was the same procedure for
every vehicle; well, except for the vehicles that didn’t have the dedicated DRL wiring to the headlights.
Makes sense to be because if you think about it, if that wasn’t why then A, why didn’t they just make the Ram projector headlights the same way they did the Durango headlights that look like smaller replicas of the Ram headlights that do have white LED DRL’s or B, not even have the DRL wire on the headlight side of the harness when they’re made the way they actually are?