Aftertreatment5 Detroit Diesel Fault Codes
Detroit Diesel Aftertreatment Fault Codes
DPF, DEF, SCR, and NOx-reduction system faults.
All Detroit Diesel Aftertreatment Codes
SPN 3246
Detroit SPN 3246 usually relates to aftertreatment DPF outlet temperature or an exhaust temperature sensor signal used during regeneration.
SPN 3251
Detroit SPN 3251 is commonly associated with aftertreatment DPF differential pressure or DPF restriction monitoring.
SPN 3719
Detroit SPN 3719 is generally an aftertreatment soot-load or DPF regeneration warning code.
SPN 3720
Detroit SPN 3720 commonly points to DPF ash load or aftertreatment service life monitoring.
SPN 5246
Detroit SPN 5246 is typically an aftertreatment inducement or derate-related code.
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