UREA Tank level error (CAN message or electrical with real sensor) - Level over CAN: SAE J1939 no Signal available Level sensor connected directly: Sensor Supply error - P203A Reagent -tank level sensor -open circuit
If Steering Not Working,Hydraulic suction filter plugged.Improper tire inflation.Steering linkage needs lubrication.Excessive play in steering. See your John Deere Dealer.