This fault code 3167 DTCs document is a troubleshooting procedure for an aftertreatment doser fault on CM2250 engines. It explains the circuit description, fault conditions, INSITE™ checks, aftertreatment fuel injector flow testing, ECM calibration review, and fault clearing actions. The file is a short 7-page PDF intended for service diagnosis rather than general operation.
Official fault code 3167 DTCs document details
| Brand | Cummins |
|---|---|
| Model coverage | ISX11.9 CM2250, ISX15 CM2250, GX CM2250; file listing also references ISB6.7 CM2250 (2010-12) |
| System/Group | Aftertreatment Doser Circuit / DTCs |
| Publication no. | 4022250 and 2883445 are listed for associated procedures |
| Year/Revision | Last Modified: 11-Jun-2010 and 19-Jan-2011; year otherwise unknown |
| Pages | 7 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Document table of contents
- Overview
- Circuit Description
- Component Location
- Conditions for Running the Diagnostics
- Conditions for Setting the Fault Codes
- FAULT CODE 3167 – Aftertreatment Doser – Data Valid But Below Normal Operating Range – Moderately Severe Level
- Action Taken When the Fault Code is Active
- Conditions for Clearing the Fault Code
- Shop Talk
- Associated Procedures
- Troubleshooting Steps
- Guided Step 1 – Check active fault codes
- Guided Step 2 – Check the aftertreatment fuel injector
- Guided Step 3 – Check ECM calibration and clear fault codes
Applicable truck models
The extract identifies the procedure with ISX11.9 CM2250, ISX15 CM2250, and GX CM2250 engine models in the associated procedure table, with the file information also naming ISB6.7 CM2250 (2010-12). The fault is tied to the aftertreatment fuel injector on the turbocharger adapter pipe and runs during active regeneration of the aftertreatment diesel particulate filter. For manufacturer information, visit Cummins official website.
Who needs this fault code 3167 DTCs manual
Workshop technicians need this code 3167 DTCs manual when an amber CHECK ENGINE lamp or MIL is linked to SPN 3556 FMI 18 and possible ineffective diesel particulate filter regeneration. It supports diagnosis using INSITE™ electronic service tool, related active fault checks, injector cleaning or replacement decisions, and ECM calibration verification.
The full PDF is available in the DiagTechPro manuals library, free account required to download.
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