154 Error Code For Farmall Tractor Models
There are 4 kind of error description.
Intake Manifold Temperature Sensor voltage is too low
Front Suspension Lock Valve Stuck on fault (suspension will not lock)
PTO switch interlock - Cab Switch and Fender switch on at the same time.
Intake Manifold Temperature Sensor voltage is too low (engine controller pin A34)
Hissing noise at expansion valve, Loss of refrigerant.Restriction in refrigerant system.Check receiver-dryer for uniformity of temperature.