Abs,brake & Engine Lights On + No Speedo Or Mileage

[AL-MK6-BLUE]

Can anyone confirm my fears that this is down to a fault in the ABS electronic module? A common fault I believe? Possibly down to water ingress? DIAGNOSTIC CODE U0121 detected. Also tried instrument cluster "self test", Tacho and Speedo do not go to max like they should, fuel and temp do go to max and stay there! Error codes E200,E197,and E262 also present! Most of the other data is not what it should be!

Is the cluster (normal use and test) not working because of the ABS electronic fault, or vice versa?

Big difference in repair bill!

Finally, can the ABS Electronic module be replaced without replacing the mechanical parts of the ABS system?

I think I have seen this thread before somewhere, but for the life of me, I can't find it again!

Any advice would be much appreciated,

AL