Peugeot Satelis 125 4T nothing goes more

Hello together. I have been driving a 125 Satelis o. ABS, EZ 2007 for several years. Type VGA J2AAAA. 13tsd KM. – always ran without problems… After hibernation with battery watcher flickered first the cockpit lighting as well as the display when waking up. Now the display does not work anymore, the hands do not move. The dipped light is off, turn signals don’t go… engine runs smoothly, cooling (ventilator) dito. Likewise the FL flash button. ant. Charging current fits, all ground points and plug connections, relays checked…i.O. Had found a lot of stored errors via the flash indicator, but in my opinion it is not really interesting. The km/h pointer sometimes moves sporadically. My question: Are the turn signals and the light in connection with a control unit controlled over the cockpit and is here possibly something defective? Would be very grateful for a solution!!!