03 Tahoe Z71 Trailer Harness No Power

[motorheadmafia]

i have a 03 tahoe z71,i have no power at the trailer connector,all fuses are good,all wires are hooked up under fuse box. i am lost.

[cdmm151]

I had the same thing happen to my 2008 silverado. Could not find it until I rechecked all the fuses under the hood that supplies power to the trailer harness. As it turned out I did have a fuse that supplied the blinkers that was blown and that killed the whole trailer system. Replaced that one fuse and all works fine now. Hope this gives you a lead with your problem.