Heated rear window not working

I have a 172 Cup. Only the lower half of my heated rear window is working. I have done a visual check on what is on the rear screen and I cannot see any obvious damage or wear. Given that it seems only half is working is there something else I should check?

Could one of these connections have failed? You could check continuity as there is another set of connections on the other side of the window? How you’d fix it though I have no clue.


I have never checked to see if mine works as I barely use the car 🤷🏻‍♂️

There will be a break in the copper lines across the window somewhere. I know you can get a copper pen that bridges the break, no idea how well they work though.