Hi
I've just been lying on the drive and put my hand behind the nearside wheel.
I felt a loose corroded bracket with a cable in it going to somewhere behind the wheel. Pulled the corroded clamp off, ran my fingers to the end of the cable and fumbled with what felt like a connector.
Test drove and now all ok. Cable tied the wire harness in place.
I thought the speedo sensor was elsewhere on an earlier Fabia with no abs. I guess not.
Getting the tyre replaced next week and will check all connectors when the mechanic has the wheel off.
Thanks to this website I managed a simple repair. This from a gut who knows nothing about cars.
Fabia Mk2, 1200cc, 2007 model
Thanks for responses, great website