Brake lights do not work!

[Glm7924]

I have a 2000 XLT Explorer, and The upper Brake light works, but the main brake lights dont! Any suggestions on how to fix this, or diagnose the problem?

[mabulok]

Maybe check for ground on the lower brake lights. You might not have a complete circuit, which would not affect the upper light. I don't think it could be the fuse as they all are on the same one. If you've got a meter, you can also check for shorts in the wires supplying the brake lights.

[snicholson78]

I have the same exact problem and since the lower brake lights stopped working, the auto lock has stopped working as well. I have replaced the bulbs and still nothing. I heard on another forum that the "light out module" needs to be replaced. I have no idea where this is, or if it is even the problem, does anyone have a suggestion