Its only displaying that code, I had heard something about the cooling fan, I removed it today and applied low voltage to it from the battery like just three cells and it spun ok, it all started when the operator hit a bump 2 days ago, after its off for a bit it may run fine but just for a couple minutes then codes and only creeps with no hyd, I don't know but sort of suspecting the cpu board may have a fine crack through one of the foil patterns, what do you think.