Cummins ISB4.5 CM2150 Fault Code: 3574 PID: SPN: 4334 FMI: 18 Aftertreatment Diesel Exhaust Fluid Pressure Sensor – Data Valid but Below Normal Operating Range – Moderately Severe Level.
Circuit DescriptionThe diesel exhaust fluid controller provides a 5 volt supply and a ground to the diesel exhaust fluid pressure...