Ford Focus Intermittent non start, cutting out, dash lights, faults displayed and can codes

Ford Focus instrument cluster fault. How quick and easy it is to check. Very common fault on allot of Ford models with symptoms such as intermittent non start, cutting out while driving, engine speed sensor faults, intermittent loss of PAS or ABS, dash lights popping on, rev counter dropping out and loads of other odds. Common codes would be: U0121 U0122 U1900 U2012 U0073