High range clutch solenoid or its wiring failed open or shorted to ground
Aux 4th remote valve LEVER potentiometer is failed in the Armrest Controller
Cab sensor open or shorted to power
Engine Controller Failure - Hardware Failure
High range clutch solenoid or its wiring failed open or shorted to ground
If Steering Not Working,Hydraulic suction filter plugged.Improper tire inflation.Steering linkage needs lubrication.Excessive play in steering. See your John Deere Dealer.