SPN 521049 FMI 31 DD13 2017 and Newer English Def Inducement Cel Lamp Active
A quick explanation of how to get rid of those pesky DEF inducement faults after a Nox sensor failure. These codes are likely Freightliner DEF system fault Def inducement lamp active : r/DieselTechs SPN 521049 FMI 31 DD13 2017 & Newer English/Español Coming from Wenatchee, WA with a load system on the truck started acting, stopped at a truck stop ...