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MaxxForce DTC search

Look up any International / MaxxForce fault by SPN, by FMI, by the 4-digit MaxxForce code, or just by describing it. 2,009 faults covering 363 SPNs, 766 of them with a MaxxForce code, read out of the factory diagnostic database.

Type an SPN, an SPN and FMI together (3251 0), a MaxxForce code (2688), or plain words. Field search works too: spn:110, fmi:4, code:1112, sys:dpf.

Where this comes from

These definitions are read straight out of the Navistar factory diagnostic database that ships inside NavKal and ServiceMaxx — the same text the dealer tool shows you. Faults are matched on SPN and FMI, with the MaxxForce 4-digit code where one exists.

Roughly a third of the faults in the database carry no MaxxForce code at all — they are reported only as SPN and FMI. Those are listed here too, marked NO CODE, because a scan tool will still show them to you.