[cezar202001]

My suspicion is faulty JBE. This is the gateway module for these cars. You cannot communicate with any modules while the car is misbehaving, but the car is correctly powering up and starting so JBE should be powered up and responding at this point.

If you observe the tree structure of control units in ISTA-D for this car, I hope you will understand what I mean and why I say this.

If you replace it, I thought I would mention there are different variants of JBE fitted to these cars and you need same type as what is currently fitted. I have used NCSexpert to code used JBE without any difficulty.

Right is the JBE and nfrm possibly.