[Broke Winger]

You always did have to post what bike it is, we can't remember them all.
That is the rear air pressure warning control unit. Probably not your problem. There are a lot of things on that fuse, start with the lights themselves checking for shorts.

What would happen if someone were to unplug that there little gizmo and...I don't know maybe throw it in a lake or summin like that?

 

[Broke Winger]

You could be fined for littering.

Well, whut if you jest hided it under a rock?

 

[Broke Winger]

Well, what effect would it have on the bike?

 

[Broke Winger]

But seriously, whut would it do to the bike if'n ya took it off?