SPN 3695 FMI 19 is a Detroit DD Series diagnostic trouble code (DTC) that reports that the Diesel Particulate Filter (DPF) regeneration inhibit switch or force switch message contains a data error indicator. 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.
On Detroit DD Series engines each fault is reported as a suspect parameter number (SPN) with a failure mode identifier (FMI): 3695 identifies the affected system and 19 describes how it failed. Read the pair with a diesel diagnostic tool such as DiagnosticLink to confirm whether the code is active or previously active before starting any repair.
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 | 0.22 MB |
| Format | |
| Language | English |
SPN 3695 FMI 19 description and steps
The SPN 3695 FMI 19 sheet describes the fault as “DPF Regeneration Inhibit or Force Switch Message Contains a Data Error Indicator” and lays out the diagnostic path Detroit expects a technician to follow. Key points from the document:
- Check for and repair CPC SPN 168/FMI 0 or SPN 168/FMI 14 (battery voltage) first, per the SPN 168 procedures.
- Check for and repair MCM SPN 625/FMI 9 (CAN line) first, per “SPN 625/FMI 9 – EPA07.”
- If the CPC was recently reprogrammed, check its configuration; otherwise connect ServiceLink to confirm module configuration and communication status.
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 SPN 3695 FMI 19 manual
Fleet technicians, mobile diesel mechanics and workshop owners use this sheet to diagnose a DPF regeneration inhibit or force switch message that contains a data error indicator 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.
Related manuals library
Sản phẩm liên quan cho hãng này
Cùng brand theo taxonomy hiện có trong catalog WooCommerce.
Detroit Diesel Reports 6.3
Detroit Reprogramming Station (DDRS) 7.11
DDDL Backdoor Password: A Comprehensive Guide
