ISM-DI DPF Differential Pressure Sensor Circuit - High Error Amber
F5C DPF Differential Pressure Sensor Circuit - High Error Amber
ISM-IDI DPF Differential Pressure Sensor Circuit - High Error Amber
If Steering Not Working,Hydraulic suction filter plugged.Improper tire inflation.Steering linkage needs lubrication.Excessive play in steering. See your John Deere Dealer.