F5C Offset Between Camshaft And Crankshaft Speed Sensors. Check Correct Positions Of Camshaft Signal Wheel And Crankshaft Signal Wheel. Engine
Offset Between Camshaft and Crankshaft -Outside Boundaries
If Steering Not Working,Hydraulic suction filter plugged.Improper tire inflation.Steering linkage needs lubrication.Excessive play in steering. See your John Deere Dealer.