System Fault 149: clock error

[NCE 61]

After having a few problems with my dash display I am left with a System Fault 149: clock error which is from the RTC (Real Time Clock) on the dashboard ECU. The fault will clear using the fault clear selection within the service menu, but the clock still does not run and the fault appears again at the next switch on.Re-setting the clock on the display makes no difference.



Anyone know how to reset this?