Button on wall charger not opening Charge Door

[PatiB87]

I fixed it.
It is an EVChargeKing Cable with the port opener. This one has a CR2032 battery inside the charge port opener button unit.
The "terminate the charge process" signal apparently works over the two wires this button uses but the "open the charge port" signal works completely over the CR2032 cell which was dead either due to water getting into the unit (it did!) or because I used it extensively for over 1 year.

 

[Rocky_H]

Oh, I hadn't noticed this, that you are in Germany, so it's a Type2 cable, and apparently is an interesting third party one.