Rear window demisting partially working

[Mangraviti]

Hey guys.

I have a 52 plate micra k11 3dr and the rear window demister only work "half window".

I don't have a multimeter to rest and I don't know where to look.

The wiring seems to be OK at the window.

Any ideas?

Thanks in advance

 

[.Maarten]

Broken lines are quite common. Can be fixed with some special paint like stuff. Most car part store sell kits for it.