Corsa rear window heating malfunction

I experienced a similar window demister issue with my 2017 Renault Clio. Did you check the auto defrost fuse? It might be the culprit. Was there any recent work done on the electrics?

I have not checked the fuse yet. Where is it located, and could that also explain the error stored in error memory?

On my Clio, the fuse box was under the steering wheel. I would check the manual, but yes, a blown fuse can trigger an error. But from my understanding, that is unlikely. The errors together may suggest a workshop visit is needed.

Thank you for the suggestion. The root cause of the issue was a heavily discharged battery, which seems to be a design flaw. Repair cost was 290€.