Prostar marker lights

[74bassman]

I found an old post where Rawze said to start checking every bulb. my headlights work, tail lights works, also the turn signals work. I found the 2 cab side marker lights were both out. the filament for the marker light was broke, and the turn signal was not broken. continuing checking the lights 2 visor light were out, 2 staring from the left side of the truck. Everything works now. looking for any shorts or broken wire to explain what cause this. I don't think 4 lights would stop working at the same time.