122 Error Code For Komatsu Tractor Models

There are 766 kind of error description.

Description:

Mode select pot open/shorted to power

Boost Pressure Sensor voltage is too high

High range clutch solenoid coil or its wiring shorted to power

Mode Select Pot Open Or Shorted To Power

Boost Pressure Sensor voltage is too high (engine controller pin A45)

High range clutch solenoid coil or its wiring shorted to power

Hissing noise at expansion valve, Loss of refrigerant.Restriction in refrigerant system.Check receiver-dryer for uniformity of temperature.