What about other indicators, like temperature, or turn signal indicator, brights indicator, etc?
It really sounds like a connection issue. A blown fuse would have killed everything at once. Both the sensors obviously work, because your ECU would not let the engine run without them (or at least you would notice that its not running right, probably would only rev to 2-4k rpm).
The connectors can get water in them and corrode, so disconnect the one at the back of the dash and see how it looks, then plug it back in, see if you get anything. If that doesn't work, trace the cable (it should go under the tank to more connectors under the seat, or tank) and unplug and replug those.
If all that fails, it might be just your dash unit thats messed up. If you have a friend with the same bike, try plugging their dash into your connector, and see if that works.
Lastly, it could be the ECU, but that a last resort.