Detroit DD13 EPA07 (2007-09) Fault Code: SPN 3695 FMI 19 (CPC) Diesel Particulate Filter Regeneration Inhibit Switch or Force Switch Message Contains a Data Error Indicator.

Posted by PerDiezel Solutions on March 8, 2026

POSSIBLE CAUSES:
This diagnostic is typically one of the following:
1. Diesel particulate filter regeneration inhibit switch message contains a data error indicator.
2. Diesel particulate filter regeneration force switch message contains a data error indicator.

NOTE: Please see the step by step troubleshooting procedures for this specific code.

NOTE: If codes 168-0, 168-14, or 168-18 active fix those first.

NOTE: If code 625-9 active, fix that first as well.

NOTE: If ECM has been programmed recently, check programming to ensure it is correct.

NOTE: This code is coming from another computer on the vehicle (ABS, Transmission, etc…).

WARNING!