Opel VECTRA C GTS: Power Steering Issue, Battery Indicator, Traction Control & Ignition Problem

Hey
I have such a problem with my vectra
Every now and then while driving, the battery indicator lights up, the steering wheel with an exclamation point pops up and the traction control lights up as if it was turned off, then I also do not have the assistance in the car and sometimes the clocks go crazy and the lights flash, sometimes it is also impossible for me to start cars - cuts off the ignition after a while is normal or sometimes it takes a long time, I was at the electrician who was holding the car for a week and stated "plate under the steering wheel"
he did, soldered I don't know. Unfortunately, after driving 600 km, the problem repeated again

I am asking for guidance on where and how to look

Greetings, Magda

https://filmy.elektroda.pl/52_1530438740.mp4

[Film: e7950a2798] https://filmy.elektroda.pl/52_1530438740.mp4 [/ film: e7950a2798]

Mass torn off?
If the previous repair was effective at 600km, I advise you to give electricians another chance ...

I would start by checking the charging voltage when it happens. As the previous speaker said. You have to start by checking the current and mass connections and the alternator.