had my trailer hooked up for the past week, all was good all lights worked, etc.

unhooked it and have no brake lights (in the bed the 3rd still works) no blinkers (front or rear) no flasher (front or rear)

parking lights/headlights are good.

what did i Blow ?

99 2500 ctd 4x4 auto QC

all the normal fuses appear to be good !

 

look for a short in the harness. mine did the opposite, wires were shorting, and backfeeding power, so none of those lights would go off. but thats where I would start.

 

You may have a secondary inline fuse in the system. Who hooked up your trailer wiring?

 

same trailer i have been towing for a year or so.

truck wiring is stock

 

Have you checked the fuses in the Power Distribution Center under the hood?

 

could be a bad relay. I had the same problem on a different truck

 

brake lights, turn signals turned out to be a fuse under the hood, the hazzards are still out

do the hazzards and turn signals share a flasher or relay ?

 

Separate flashers, don't know about the relay. Have you swapped flashers to see if they will work?