[ViscontiMNE]

Dismantle body computer and check for oxidation or corrosion shorting tracks and pins on the circuit board. Had the issue on one of my 147s. Alternatively , door lock mechanism inside the door can be faulty. But first check the body comp. Disconnect the battery negative before dismantling it,. see below the images of what I am talking about, my most recent cleaning of the body computer circuit board..
symptoms were varied but each and every time included problems with central locking, radio, lights etc...

 

[ViscontiMNE]

 

[ViscontiMNE]

 

[ViscontiMNE]

Yes, by cleaning the board with small quantity of brake cleaner or similar agent and fine brush, taking care not to damage sensitive components..

 

[ViscontiMNE]

You are right.. and it used to cause all sort of weird electrical problems with the car. After cleaning, all is well again.