78 System frozen and not free in time - Defreezing Mode and Detection Errors (Back-flow line defreezing failed) - P20B9 Reagent - backflow tube heating Open circuit
System frozen and not free in time - Defreezing Mode and Detection Errors (Back-flow line defreezing failed) - P20B9 Reagent -backflow tube heating -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.