'04 w/ Big Tow: Trailers Light Not Working At All.

[ten~39]

I purchased my Titan about 6 weeks ago, and today I hooked a trailer up to it for the first time to test out the lights, proper drop hitch, etc. There're no lights whatsoever functioning on the trailer, which worked just fine on another truck yesterday. My Dad and I are supposed to be leaving on a week long trip tomorrow with the trailer in tow, so as you can guess this issue is a bit pressing.

I checked under the hood and both relays are present, and the little 10 amp further back is fine as well. The wiring back at the hitch has no obvious damage or issues.

Any quick ideas for someone who's not necessarily gifted in the electrical sense.

[ten~39]

Captain obvious to the rescue...

It turns out that sometime between the trailer being hooked up to my Dad's truck last night (and the trailer lights working fine) and this morning, the ground had gone bad in the trailer. We didn't even think to check, since it was fine a few hours earlier.

Mods feel free to delete the thread if you see fit.

Thanks!

[Jared]

good to hear. fyi if you have had the bcm harness recall done, you also have a couple fuses in that subharness behind the drivers lower dash panel.