Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3695 FMI 14 (CPC) Diesel Particulate Filter Regeneration Inhibit Switch or Force Switch Message Not Received This Ignition Cycle

Posted by PerDiezel Solutions on April 23, 2026

This diagnostic is typically one of the following:
1. Diesel particulate filter regeneration inhibit switch message not received this ignition cycle.
2. Diesel particulate filter regeneration force switch message not received this ignition cycle.

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 recentely, check programming to ensure it is correct.

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

WARNING!