fixed!!!!!!!!!!!!!!!!!!!!!!!!!!! Thanks!!!!!!!!!!!!!!

 

Do you have a good 12v at the pin in the tail light bulb? If yes then check the ground connection of the light. If both lights are affected then you probably have a broken wire between the HL switch and the tail light. Do the front parking lights work? The marker lights?

Get out your volt/ohm meter and do some checking.

Edwin

 

Did you check the plug in the wiring harness under the tailgate/end of the bed?

Just a place to start looking.

 

I agree with both, check with meter. I always had just 10.5 V (if lucky) going to my rear lights until going with a 2 battery system. Much brighter now and easy to install the battery sideways in the stock location. I also had some bad wiring under the rear bed that I have taken care of with new wiring spliced in.

 

Found it guys broken wire right before the rear harness took alot of hunting but got it solved thanks!!