SPN 5246 FMI 0 – Aftertreatment SCR Operator Inducement Severity (Cascadia Fault Code)
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What Does SPN 5246 FMI 0 Mean?
SPN 5246 FMI 0 indicates that the aftertreatment system has entered an operator inducement condition due to an emissions-related failure. On trucks like the Freightliner Cascadia equipped with Detroit Diesel DD13 or DD15 engines, this code usually results in engine derate if not corrected.
In simple terms:The truck detected an SCR/DEF system problem and is limiting
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