Front suspension position is below the expected absolute limit
Aux 5th Raise Coil solenoid shorted to 12 volts.
Oil Pressure Sensor voltage is too low (engine controller pin A33)
Front suspension position is below the expected absolute limit
If Steering Not Working,Hydraulic suction filter plugged.Improper tire inflation.Steering linkage needs lubrication.Excessive play in steering. See your John Deere Dealer.