Electric Problem, 206cc 1.6 16v (2001)

The problem surfaced spontaneously yesterday when I turned off the car. I got up and wanted to lock the car via the button on the key, which didn't work. so I locked it directly over the door. but that didn't leave me alone because the batteire was recently replaced in the key. so I got in, started the car and the automatic windshield wiper could no longer be turned off, the automatic light no longer. the blinkers didn't work. could no longer operate the on-board computer. I checked all the fuses and exchanged some but it didn't work.

The problem surfaced spontaneously yesterday when I turned off the car. I got up and wanted to lock the car via the button on the key, which didn't work. so I locked it directly over the door. but that didn't leave me alone because the batteire was recently replaced in the key. so I got in, started the car and the automatic windshield wiper could no longer be turned off, the automatic light no longer. the blinkers didn't work. could no longer operate the on-board computer. I checked all the fuses and exchanged some but it didn't work.