I bought a used car 6 years ago, one of the 2 keys no longer opened the car.
Now the second remote control has also failed.
There is no error in Vida, you can see the doors closed.
Volvo received a CEM update at a service center, it didn't get any good.
The key was said to be bad, the new one was ordered, it was taught and it doesn't work either.
The RRX module is green in the Vida program, if disconnected it writes the Bus error.
Has anyone ever encountered such a problem?

 

I trust you are aware If you click on the codes you will get suggestions from Vida as what the cause might be and where to check

 

Vida doesn't write an error unless I unplug the amplifier. That's why I think it works. It also writes the voltage of the key element ...