Freightliner Spn Codes
Webnumber (spn), and failure mode indicator (fmi) descriptions this solution helps explain the underlying meaning of the numerical components which build a fault code. Websuspect parameter number (spn) and failure mode indicator (fmi) full code list. 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. The learn procedure is done using powerlink.
Webthe fmi is used along with the spn to provide specific information that relates to a diagnostic trouble code (dtc).
