What is This Fuse For?

Hi

 

I’m trying to work out what the fuse (arrowed below) is for - I’ve had a look at my Grainger manual, and at the Haynes one online, but neither show the same fuse block as the one in my car.

 

It seems clear, from the cover, that it should be a 10A fuse, but there is a 20A fuse in it at the moment and, as my Japanese is non-existent, I can’t read what it says on the cover.

 

Paul

 

It should be a 10amp not 20amp so needs changing and it is for rear stop lights.

M-m