SPN 3719 FMI 16 is a Detroit DD Series diagnostic trouble code (DTC) that indicates the soot level is high and that a parked regeneration is required to restore the aftertreatment system. This library entry summarizes the official one-page all model years fault-code sheet published on TruckFaultCodes.com (Copyright © 2017) so technicians can confirm the meaning of the code before opening the full PDF.
Official document details
| Brand | Detroit (Detroit Diesel) |
|---|---|
| Model coverage | DD13, DD15, DD16 and Series 60 (DDEC VI) |
| System / Group | DD Series (EPA 2007-Current) / DTCs |
| Publication | TruckFaultCodes.com fault-code sheet, © 2017 |
| Year / Revision | 2017 |
| Pages | 1 |
| File size | 0.24 MB |
| Format | |
| Language | English |
SPN 3719 FMI 16 description and steps
The SPN 3719 FMI 16 sheet describes the fault as “Soot Level High” and lays out the diagnostic path Detroit expects a technician to follow. Key points from the document:
- Do not interrupt regeneration once it has been initiated.
- After the code is detected the operator has two minutes to meet the entry conditions (cycle the clutch or neutral switch and the parking brake) and initiate the regeneration request, or the engine will shut down and the procedure must be restarted.
- Perform a parked regeneration per “Performing a Parked Regeneration – EPA07” in Power Service Literature.
- Clear all codes after the parked regeneration completes.
Applicable truck models
This fault-code sheet applies to Detroit DD Series engines (DD13, DD15 and DD16) built to EPA 2007 and later emissions standards, and to Series 60 engines with DDEC VI (EPA 2007). Coverage and calibration always depend on the specific chassis and engine build, so verify applicability against the vehicle before servicing. For engine specifications and warranty details, see the Detroit Diesel official website.
Who needs this 3719 FMI 16 manual
Fleet technicians, mobile diesel mechanics and workshop owners use this sheet to diagnose a high soot level that requires a parked regeneration quickly and to avoid replacing parts on guesswork. Keeping the exact Detroit procedure on hand shortens diagnostic time and supports a clean repair record.
The full PDF is available in the DiagTechPro manuals library; a free account is required to download it.
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