Hey!
I have had problems with my Hobby Fiat Ducato 2.8 JTD (2006) When I insert the key into the ignition switch and turn it around, nothing happens. The instrument panel is completely black, the starter does not run either. Everything worked yesterday and today when I would start this problem arose. Have tried with both keys but no difference and the starter battery is fully charged.
Grateful for advice and tips!

Are all the electrics dead ? lights , horn , radio, fan ....if so look at the battery connections ..make sure they are solid ....then look at the fuses ...work slowly through all the likely things ....I had this on my old truck ...it was a loose and rusty connection on the earth side to the body from the battery ....good luck..

There is electricity in the car. The radio works as well as all the lights. The only thing that lights up on the dashboard is the clock. I have also checked fuses but all are intact. I'll look at the ground connections, thanks for the tip