Tail lights and runners won’t work.

[dspizzle]

My headlights work fine as well as my brake lights. But my tail lights and runner lights will not turn on.

Any idea how to troubleshoot?

1999 Thomas saf t liner mvp.

Thank you!

[Dead pirate]

It's on a separate fuse. They are all close together in the outside fusebox thing. If not you have to trace the wires. Continuity meter

[david.dgeorge07]

More info needed. What has been done to the bus recently?

Those are on their own fuse as was mentioned, but recent work may have caused a short.

If your bus is like mine, those wires run up the drivers side above the windows and then down into the outside accessible panel behind the drivers seat. Individual leads run across the ceiling to the passenger side.

If they are all off then a fuse is blown or you have a bad wire in that trunk (or both).