Hi guys

have a problem with my 2005 ford fusion 1.4 tdci.

My speedo is reading zero, I can see it flickering but that is all,

rev counter, petrol gauge, etc etc is all still working, including miles still clocking up, and trip computer

tried the test button and the speedo went all the way round off the dial but got stuck on about 90mph on the way back,

any ideas what it can be,

speed sensor ?
abs sensor ?

i have a obd2 code reader but its showing no codes