Hi guys, installed supernova LED v4 lights for my low and highs this week. Noticed my DRL are not functioning now. My parking lights are on but nothing else when my lights are set to auto. Went in through my settings to make sure they were still set to on and they are. Any thoughts?

​​​​​​Lights are freaking amazing by the way, highly recommend them. Beam pattern is great and not getting high beamed by on coming traffic.

2016 xlt that had halogen bulbs from the factory.

 

Some brands of LED bulbs will not operate on the OEM lower voltage signal provided for the halogen DRL function. My Sealights do.

 

Your parking lights shouldn’t be on durning the day when you have your headlights set to auto.

 

Am I referring to the small amber lights in the headlights by the wrong term? They're on when my autos are on, always have been.

 

The small amber lights are the parking lights.
Blue is low beam

Red is parking

Green is turn signal

Orange is high beam

 

Well they're on when my lights are set to auto and it's daytime. 😆

 

The only lights that should be on with DRL are the low beams. Maybe someone make some strange ForScan edit and maybe that’s causing issues now?

 

I guess that's possible. It was a lease vehicle with 20k miles when I bought it. Maybe the person leasing it messed with the settings somehow.

 

@grahfx

I disagree, but maybe I misread something.

The smaller amber lights are the side lamp markers (circuit CLS-07).
Park lamps are a separate circuit from the amber markers.
Wiring diagrams attached for reference:

Depending where the OP is located it is possible a BCM update caused new behavior we're not familiar with. The department of transportation in Canada made park lamps with DRLs a law and BCM updates starting in 2022 forces it on.

It could be a wiring issue, new BCM strategy, after market bulb harness, but I'm going to have to side with @BadAV on this one.

My assumption is BCM voltage output. DRL's operate at 80%. This can be modified in ForScan.
I forget the exact solution, but I think by setting the DRL mask to EU standards and changing the DRL output to dedicated low beam circuit they will begin to work as desired.

In theory setting this in the BCM would probably work... I think...maybe... LOL
Other people might be able to chime in.

726-45-01 xxxx 7Fxx xxxx
726-50-01 02xx xxxx

 

Really good information here. Thank you! Don't want to sound like a conspiracy theorist but I swear they were working after my LED install because I tested everything to make sure it was all working Took my truck in for an oil change a few days later and a once over Monday. I always leave my lights on auto but when I picked my truck up they were set to off and I noticed the issue the next day when I flipped them back to auto. I wonder if they did some sort of update that messed them up. I guess FORScan would be the way to go to try and jack the voltage up to on the DRL in order to reenable them.