Hey so my LED halo's failed and I temporarily want to use my city lights as DRL and was wondering if it's possible. I'm using fogs as DRL right now but would like to do the city lights as well. I don't think I see an option in OBDEleven and was wondering if anyone has manually coded it. I tried to search forums, and found one person saying you need to splice it to the side markers, but idk if that makes sense since side markers & city lights activate when turning the switch to the "on" position. Hoping someone can clear this up and help me as well as anyone else in the future thinking about the same thing.

So I got my AI agent to help me get coding instructions, I want to confirm if this makes sense to anyone before attempting anything. My car is a 2011 GTI with factory bi-xenons from Canada 🇨🇦 if that makes any difference.

OBDeleven coding to try

First create a backup of 09–Central Electrics and save the original long-coding string. Here are OBDeleven’s backup instructions.

Then open:

Control Units → 09 Central Electrics → Long Coding

Leave every unrelated bit unchanged:

Byte/bit	Set to	Purpose
Byte 24, Bit 7	ON	DRLs as position/city lights
Byte 11, Bit 2	OFF if active	Disables low-beam/xenon DRL
Byte 15, Bit 6	OFF if active	Disables separate H15/factory DRL
Byte 14, Bit 1	OFF if active	Disables fog-light DRL
Byte 26, Bit 3	OFF	Allows DRLs with the switch at 0, rather than only Auto/ADL
Byte 27, Bit 2	OFF	This is for a genuine OEM LED DRL module—not a W5W LED replacement

I'm trying to program the little city lights in the housing to come on as my DRL's along with my fogs. Don't think I see an option for it in OBDEleven app? I got GPT to get me manually input codes below, does this make sense before I go give it a try?

Do I need to swap in my euro switch to do the coding? Mine is a 2011 GTI 🇨🇦 Canadian spec with the original Bi-Xenons - these little lights only come on along with the brights. I have my DRL set for fog lights now like in the last photo.

There's not a lot of solid info out there, so I would really appreciate the help!!

OBDEleven Instructions:

First create a backup of 09–Central Electrics and save the original long-coding string.

Then open:Control Units → 09 Central Electrics → Long Coding

Byte/bit	Set to	Purpose
Byte 24, Bit 7	ON	DRLs as position/city lights
Byte 11, Bit 2	OFF if active	Disables low-beam/xenon DRL
Byte 15, Bit 6	OFF if active	Disables separate H15/factory DRL
Byte 14, Bit 1	OFF if active	Disables fog-light DRL
Byte 26, Bit 3	OFF	Allows DRLs with the switch at 0, rather than only Auto/ADL
Byte 27, Bit 2	OFF	This is for a genuine OEM LED DRL module—not a W5W LED replacement