Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 5383 PID: SPN: 3720 FMI: 15 Aftertreatment 1 Diesel Particulate Filter Ash Load Percent- Data valid But Above Normal Operating Range- Least Severe Level

Circuit Description
The engine aftertreatment system monitors the aftertreatment DPF restriction. The diagnostic alerts the operator of the requirement to clean or exchange the aftertreatment DPF.

Component Location
The aftertreatment diesel particulate filter is located in the exhaust system and is installed by the original equipment manufacturer (OEM). Refer to the OEM service manual.

Conditions for Running the Diagnostics
This diagnostic runs when the engine is operating and exhaust flow is above a minimum level.

Conditions for Setting the Fault Codes
This diagnostic monitors the aftertreatment DPF differential pressure sensor. When the aftertreatment DPF differential pressure is above a maximum value at the end of an aftertreatment regeneration the fault code is set.

Action Taken When the Fault Code is Active
The ECM will illuminate the MAINTENANCE lamp on the key cycle after the diagnostic runs and fails.

Conditions for Clearing the Fault Code
In order to clear the fault code, the aftertreatment DPF must be exchanged or properly cleaned and the INSITE™ electronic service tool must be used to perform an Aftertreatment Diesel Particulate Filter Installation

Shop Talk
Possible causes for this fault code include:

The aftertreatment diesel particulate filter differential tubes are installed incorrectly, broken, loose, or have been tampered with
The aftertreatment diesel particulate filter intake temperature sensor malfunctioned in-range
The aftertreatment diesel particulate filter requires exchange or cleaning.
Build up or plugging on the inlet face of the Diesel Particulate Filter.
Excessive ash in the DPF

Possible Cause:
1) DPF failure
2) ECM calibration