Are there lights on my GMC Duramax trailer?

Truck is not detecting the trailer. I have a 5 pin from the harness to a 7pin adapter (new and old adapter have been tried). No brakes are installed on the trailer, that wire is not grounded but is terminated. Trailer lights work when connected to my Yukon. Trailer has 4 led running lights and 2 led tail lights.

Why are the lights on my GMC 2500 not working?

Just bought a 2020 GMC 2500hd AT4, and am having an issue with trailer lights not working. Truck is not detecting the trailer. I have a 5 pin from the harness to a 7pin adapter (new and old adapter have been tried). No brakes are installed on the trailer, that wire is not grounded but is terminated.

Are there any trailer lights that still work?

Just the trailer has issues. But the truck lights work fine. Just the trailer has issues. Yep. The fuses are for the trailer lights only. The truck’s signals will still work. If you pop the cover off the fuse box under the hood, I believe they are #16 and #17 fuses.

Are there running lights on a Sierra truck?

Running lights are on a separate fuse. This. My 15 Sierra popped both left and right signal + brake light fuses recently. There is 1 fuse for each side that does signal and braking. Running lights are on a separate fuse. But the truck lights work fine.

Why does my GMC Duramax have no power to trailer?

Turned out that upon closer inspection the 40A fuse for Stud#1 was blown. It looked fine from the top but when I pulled it out it was no good. If it is hooked up and did blow a fuse it would be one of the square ones furthest inboard that protects the #1 post. Your slide must have overloaded the fuse. Mine is a 40 amp if I remember correctly.

Where is the MAXI fuse on a Duramax hot lead?

To provide power to the trailer hot lead, the 40 Amp Maxi-Fuse (which is BEC. The Underhood BEC is located on the left side of the engine compartment. The trailer battery ring terminal on Stud #2 is fused with 30 Amp Maxi-Fuse.