Not sure why this is happening......when I press my brakes, both lights go on but at night when I turn on my lights, no passenger side light. Same thing when I arm/disarm my car alarm. Usually the lights flash once but nothing happens. Only time the light goes on is when the brakes are applied. I changed the passenger brake light bulb but wouldn't this be a wiring or fuse issue? Any help is much appreciated.

 

Pretty weird problem.
Maybe the wrong bulb installed (2-filament vs 1-filament) ?

Mahalo

 

Brake light and tail light are two different fillaments usually. If you replaced the bulb and it still doesn't work, then yeah you're on the right track with the fuse/wiring. Check your bulb socket and make sure it's not all gunked up. And when you install it use a little electrical grease

 

Figured out what the problem was. The bulb wasn't pushed all the way into the socket. When I installed it, I had pushed it in pretty well, but I jammed it in there today and everything worked.