When I turn on my headlights everything works fine. As soon as I turn off my head lights my marker lights stay on. I have to diconnect the aux battery, and I hear a click in the relay then the lights stay off, I have replaced the relay and the switch in the cab. The battery doesn't hold a strong charge if it hasn't been started for a few days as well. I don't know what else to do or what I should replace to fix this problem. Any advice would be greatly appreciated.

 

Are you pushing the headlight switch in all the way? Since you replaced the in cab switch, its possible that the dash panel may not have been put back on right and it might be sticking out to where the switch won't go in all the way. Other than that, I'm not sure what to tell you...

 

Yeah the switch is all the way in I checked that before I put the dash back on just to make sure that the dash wasn't the problem, I also Ohms checked the new switch before i put it in. The relay was warm this morning like it had power going to it all night. I am going to look at some wiring diagrams for the junction box to see where the hot wire comes into play, but other than that I still don't know which direction to go.