This Cummins DPF fault code document is a troubleshooting procedure for Fault Code 3319, covering the aftertreatment diesel particulate filter outlet temperature sensor circuit. It explains the circuit description, fault conditions, ECM response, guided checks, harness tests, sensor interface module checks, calibration review, and fault clearing process.
Official Cummins DPF fault code document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB6.7 CM2250, plus associated CM2250 engine models listed in the procedure |
| System/Group | ISB6.7 CM2250 (2010-12) / DTCs |
| Publication no. | Not specified; associated bulletin numbers include 4022254, 4022257, 4022250, 2883445, 4022256, and 4022255 |
| Year/Revision | Last Modified: 11-Jun-2010; guided procedure Last Modified: 07-Dec-2010 |
| Pages | 19 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Document table of contents
- Overview
- Circuit Description
- Component Location
- FAULT CODE 3319 – Aftertreatment Diesel Particulate Filter Outlet Temperature Sensor Circuit – Voltage Above Normal or Shorted to High Source
- Conditions for Running the Diagnostics
- Conditions for Setting the Fault Codes
- Action Taken When the Fault Code is Active
- Conditions for Clearing the Fault Code
- Shop Talk
- Associated Procedures
- Troubleshooting Steps
- Guided Step 1 – Check the fault codes
- Guided Step 2 – Check the aftertreatment diesel particulate filter outlet temperature sensor and circuit
- Guided Step 3 – Check the aftertreatment DPF temperature sensor interface module
- Guided Step 4 – Check the ECM and OEM harness
- Guided Step 5 – Check ECM calibration and clear fault codes
Applicable truck models
This procedure is written for Cummins CM2250 applications identified in the extract, including ISB6.7 CM2250, ISC8.3 and ISL9 CM2250, ISX15 CM2250, GX CM2250, ISX11.9 CM2250, QSL9 CM2250, and QSB6.7 CM2250. The fault concerns the aftertreatment diesel particulate filter outlet temperature sensor, which is located at the outlet of the aftertreatment diesel particulate filter; the document directs users to the OEM service manual for exact component location. More manufacturer information is available from Cummins official website.
Who needs this Cummins DPF fault code manual
Mechanics, fleet technicians, and workshop owners need this manual when INSITE™ electronic service tool shows Fault Code 3319, SPN 3246, FMI 3, with an amber lamp and disabled active or stationary regeneration. The checks cover open return circuits, open signal circuits, shorts to voltage, pin-to-pin shorts, damaged connector pins, sensor replacement, aftertreatment DPF temperature sensor interface module replacement, OEM harness repair, ECM calibration code review, and final fault code clearing.
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