Nick McDermott

Disregard - I got it! It was fuse #54 which was the one I missed

Another quick update. I got the code out and engine light is gone but assembly still not working. Is it really possible I fried the whole assembly now?

I went in with my own scanner, found a code, deleted it, but check engine light is still on and assembly is still not working. Will a standard OBD-2 scanner not work?

oh that would be amazing. Thank you!!

Btw, it’s a 2024 gmc 3500….should have just paid the extra amount for a putco

Hey guys, I went into my tail light assembly to hardwire an led tail gate light bar. With what I seemed would be an innocent project had my scratching my head…I went to expose the wire to splice into my light bar wires with the truck turned off. I go to turn it back on and it says “check light assembly. Sure enough no power to the back left but right works just fine….thinking it was a fuse I went in and changed what I believe is the fuse # but still nothing….could I have shorted the whole assembly??

Yeah I tried finding it here and boy is it tough hah. I will try again thanks

Anyone know of a resource I can call to find the diagram?

Hey guys, I am looking to tap my tailgate light bar into my tail light and wondering if anyone has the color coding for each wire (left turn, right turn, brake, ground). Also, do both sides of left and right turn or do I need to run one long across to the other side? THanks!

Well that’s awesome…good catch. so I’m back to hardwiring or will that not work either? If I go that route where would you tap into?

Thank you. I did find this product for my specific light bar that I think may work even though it says 1500 not 3500: https://www.amazon.com/OPT7-Redline-Connect-Harness-Silverado/dp/B09YCD82H3/ref=cm_cr_arp_d_product_top?ie=UTF8

Thank you but I just dont want a plug or wiring from the led bar exposed on the outside whatsoever. Is there no adaptor harness that that "sees resistance" on the market? Hard to believe

Ok then we're looking to do two different things. I am looking to have the lightbar connected behind the back bumper and still be able to use the port for trailer connector. I just need to figure out why my truck (2024 GMC Sierra HD) is saying "trailer disconnected" when I use the Curt harness

but you have the 57004 exposed on the outside and you have to unplug when trailering?

How are we the only ones that have dealt with this? Seems like it should be this complicated and I’m now three harnesses in and still no results.