MaxxForce Aftertreatment Fault Codes

MaxxForce fault code SPN 1761 is commonly associated with the diesel exhaust fluid system, especially DEF level or DEF tank monitoring.

MaxxForce fault code SPN 2637 generally belongs in the aftertreatment monitoring group and may relate to DPF regeneration, exhaust temperature control, or aftertreatment system performance depending on the engine and calibration.

MaxxForce fault code SPN 3251 is commonly associated with diesel particulate filter differential pressure.

MaxxForce fault code SPN 3361 is typically associated with DEF dosing or aftertreatment fluid delivery.

MaxxForce fault code SPN 3362 usually points to DEF dosing system operation, DEF pressure, or DEF delivery control depending on the calibration.

MaxxForce fault code SPN 3363 is commonly associated with DEF quality, DEF dosing performance, or SCR system response.

MaxxForce fault code SPN 3719 is generally tied to DPF soot-load, regeneration, or aftertreatment restriction monitoring.

MaxxForce fault code SPN 3720 is commonly related to DPF ash load, regeneration status, or aftertreatment service requirement.

MaxxForce fault code SPN 4360 generally belongs to the SCR/aftertreatment temperature or catalyst monitoring group.

MaxxForce fault code SPN 4363 is commonly associated with SCR catalyst efficiency, NOx conversion, or aftertreatment performance monitoring.

MaxxForce fault code SPN 5246 FMI 0 is commonly associated with emissions inducement or aftertreatment-related derate status.