Help I just got my truck back from dealer and noed when I hook edge up the only way I can get it to come on is If I turn the headlights on. I need to get it back and going the right way quickly I have to leave in a minute. Truck runs but don't want something to go wrong with it onlyh working with headlights on. All suggestions please.

 

Do you have the fuse tap in the right place?

 

Yes I have consulted the manual 3 times now and tried two diff. fuses; still no luck. It is strange it worked fine before and mp-8 still works fine and I can only tell by tone of engine but still a notice that it is working.