I am having problems with my 2002 basic Seicento. It started off with problems similar to this thread
https://www.fiatforum.com/cinquecento-seicento/472568-tapping-rattle-sound-when-ignition-turned.html
but don't want to hijack it.

There was rapid clicking on the n/s bulkhead rather like the indicator when one bulb fails. The engine management light came on but the car remained driveable and the noise stopped after a couple of miles. The engine management light remains on.

Thought I would put multiecuscan on to check it. I have a registered version (4.4). When I use it, it goes through the scan and very briefly the diagnosis screen flashes up and the returns to the home screen. How do I get back to the diagnostic screen to see the errors.

Any help appreciated