Freightliner Spn Codes
The fmi may indicate that a problem with an electronic. Webthis code sets when spn 521050/fmi 31 has been present for one hour of idle time, the vehicle has been restarted or six gallons of fuel has been used. Websuspect parameter number (spn) and failure mode indicator (fmi) full code list. The learn procedure is done using powerlink. Check the def quality by using the refractometer from the def test kit w060589001900 to measure the def percentage.
Webnumber (spn), and failure mode indicator (fmi) descriptions this solution helps explain the underlying meaning of the numerical components which build a fault code.
