SPN 3264 is a diagnostic trouble code for Aftertreatment 1 Diesel Particulate Filter.
FMI 0 – Outlet Gas Temperature Data Valid But Above Normal Operational Range – Most Severe Level
FMI 2 – Outlet Gas Temperature Data Erratic, Intermittent Or Incorrect
FMI 3 – Outlet Gas Temperature Voltage Above Normal, Or Shorted To High Source
FMI 4 – Outlet Gas Temperature Voltage Below Normal, Or Shorted To Low Source
FMI 15 – Outlet Gas Temperature Data Valid But Above Normal Operating Range – Least Severe Level
FMI 16 – Outlet Gas Temperature Data Valid But Above Normal Operating Range – Moderately Severe Level
Troubleshoot:
DEF filter, DPF
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