Jackolantern
Favorite Answer
You need to test all the fuses, both sides of each fuses, until you find one that's out.
Anonymous
You need to get an index for your fuse box. Check the taillight fuse. There could be a problem with your headlight switch or the connector at the headlight switch or the wiring, or all your tsillights are burned out.
While a fuse is always a good place to start checking, a fuse does not normally just fail for no reason.
Sometimes thete is a trailer wiring harness that is making problems.
White Lives Matter
Use a wiring diagram and trace it back.
thebax2006
You're supposed to take a bulb out to see if it has a blown filament in it. It's likely you could have 2 blown tail lights. Why replace all the fuses when you can just look at them to see if they are bad or not?
Rick
two different circuits, probably a bad wiring connection plug ...........