2011 Yukon tail light issue

[Ykn11Cg]

So my issue that I'm having on my 2011 Yukon is that the running light on the driver's side isn't work but both the brake lights and reverse lights work just fine. They're after market tail lights I'm not sure what brand. Then I changed to the escalade style tail lights today and the same issue but on both sides the running lights don't work and the turn signal on the passenger side doesn't work. Can you guys help me figure this out?

 

[Cwatson84]

I’m having the same issue on my 2008. I have replaced bulbs, pigtails, fuse block, and fuses. So I’m here to see if anyone has other suggestions.

 

[Fless]

I’m having the same issue on my 2008. I have replaced bulbs, pigtails, fuse block, and fuses. So I’m here to see if anyone has other suggestions.

Same issue? Are yours the OE lights or some aftermarket ones (if aftermarket, which ones)?

Which lights are working, and which ones aren't?