Need Help with DRL Wiring for New Headlights!

[Sideburnz]

I recently installed a new set of DRL Square-Chrome Headlights 88-98 GMC C/K. What I am trying to figure out is how to make the DRL Square to operate as the factory DRL setup without the bulb that is in the headlights themselves turning on. (The way the factory DRL in the low beam housing would lights up. )

To be clear I want the DRL Square in the new headlights to work as the original factory DRLs worked!

And it sure would be cool if I could get the DRL Square to blink along with the turn signals. Any help would be appreciated.

Thank You

 

[Sideburnz]

I should add that each DRL LED Square has it's own power and ground wires!

 

[Caman96]

What I am trying to figure out is how to make the DRL Square to operate as the factory DRL setup without the bulb that is in the headlights themselves turning on.

I’ve read this multiple times and still don’t understand.

 

[1998_K1500_Sub]

I’ve read this multiple times and still don’t understand.

^^^ Agreed. It would help to know if his truck has the DRL wiring already. When were DRLs deployed in GMT400s, 1996?

OP, what year is your truck? What exactly are you referring to when you say "DRL square"?

In any case, consider downloading the FSM for your year and studying the wiring diagrams to determine the wiring changes required to accomplish your objective.

The FSBs can also be found here:

88-98 Service Manuals

Over the years I have collected a bunch of GM service literature. Links to PDF Scans of service and STG manuals and a links to the Parts manuals. You'll need the FREE Adobe Acrobat reader to open these files. Get it directly from Adobe here {http://get.adobe.com/reader/} If you're not...

www.gmt400.com

To me, it kinda sounds like OP wants something like the "city light" feature discussed elsewhere on GMT400, with them connected to the blinker circuit.

 

[Caman96]

to operate as the factory DRL setup without the bulb that is in the headlights themselves turning on

So, you don’t want the bulb to turn on…

To be clear I want the DRL Square in the new headlights to work as the original factory DRLs worked!

…but you want it to work as the factory DRL’s work?

Then why don’t you want the bulb to turn on?

 

[Sideburnz]

1999 Tahoe 2dr 2wd. I'm not wanting the bulb on because I'm running LED Headlight Bulbs. The blue outline is the DRL LED Square.

 

[1998_K1500_Sub]

The blue outline is the DRL LED Square.

What you've outlined consists of two separate assemblies, i.e., one headlight assembly and one turn signal assembly. For the record, the headlight is the top assembly of the two, and the turn signal is the bottom of the two.

I've never heard anyone use the term "DRL LED Square". Maybe I'm just too old

Reference picture attached. The headlight, turn signal, and side marker lights are plainly visible.

As for your 1999 2dr, it likely has DRL wiring much like my 1998 Sub, see this post for wiring schematics from the 1998 FSM:

https://www.gmt400.com/threads/acquiring-arteb-brazil-gmt400-headlight-reflectors.44133/post-1239362

 

[Caman96]

Yeah, I’m still not following you and I agree, some of the terminology is confusing.

I'm not wanting the bulb on because I'm running LED Headlight Bulbs.

I mean, of course your running LED’s now and not using the old bulbs/fixture.

Aside from it using LED’s is the function any different from original function?

 

[Sideburnz]

Maybe I should just go ahead and wire them up similar to the "city lights" that are talked about in the Arteb Headlights thread.

 

[Supercharged111]

DRLs and headlights use the same wire, you're going to have to add something yourself.