GPS Repairs - Abarth 500 - Blue&Me control unit failure

Error in the Blue&Me central control unit.

The Bluetooth connection is unstable or cannot be established, phone calls are frequently interrupted, and the hands-free function is disrupted. In addition, the vehicle battery discharges unusually quickly. The quiescent current consumption is too high. Furthermore, the USB port is not functioning, communication with external devices cannot be established, and data transfer is not possible. Voice output is often disrupted. The Blue&Me media player is not working, music is not playing or is distorted. The buttons on the steering wheel used to operate Blue&Me are not working. CAN bus communication is disrupted, meaning that communication with the control unit cannot be established. The mileage in the instrument cluster flashes sporadically or continuously.

Error codes:
U1733-86 - Blue&Me cannot be diagnosed
U1733-87 - Node convergence - Missing message
B10AA-4A - PROXXI control configuration Proxi - Incorrect component installed
No communication