This Cummins fault code 1925 document is a troubleshooting manual for the aftertreatment fuel shutoff valve 1 fault on CM2250 engines. It explains the diagnostic logic, fault effects, component locations, INSITE checks, and guided repair steps for the aftertreatment fuel injection system.
Official Cummins fault code 1925 document details
| Brand | Cummins |
|---|---|
| Model coverage | ISX11.9 CM2250 and ISX15 CM2250; file category also lists ISB6.7 CM2250 (2010-12) |
| System/Group | Aftertreatment Fuel Shutoff Valve 1 Circuit / DTCs |
| Publication no. | Not shown; associated bulletin numbers 4022250 and 2883445 are referenced |
| Year/Revision | Last Modified: 11-Jun-2010 and 27-Sep-2010 |
| Pages | 12 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Document table of contents
- Overview
- Circuit Description
- FAULT CODE 1925 – Aftertreatment Fuel Shutoff Valve 1 – Data Erratic, Intermittent, or Incorrect
- Component Location
- 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 – Inspect the aftertreatment fuel pressure sensor
- Guided Step 3 – Inspect the aftertreatment fuel shutoff valve
- Guided Step 4 – Inspect the aftertreatment purge air actuator
- Guided Step 5 – Inspect the aftertreatment fuel injector
- Guided Step 6 – Check ECM calibration and clear fault codes
Applicable truck models
The extracted procedure identifies ISX11.9 CM2250 and ISX15 CM2250 engine applications, with associated procedure references for the aftertreatment fuel injector, aftertreatment fuel shutoff manifold, aftertreatment fuel injector flow, aftertreatment purge air actuator, and ECM calibration code. The file metadata places it in the Cummins ISB6.7 CM2250 (2010-12) DTC group, but the visible procedure pages name ISX11.9 CM2250 and ISX15 CM2250 as the covered engine models. For manufacturer information, visit Cummins official website.
Who needs this Cummins fault code 1925 manual
This manual is for diesel mechanics, fleet technicians, and workshop owners diagnosing an amber CHECK ENGINE lamp, disabled active DPF regeneration, or aftertreatment fuel injection system faults. It is most useful when INSITE™ electronic service tool access is available for fault checks, sensor readings, regeneration testing, ECM calibration review, and clearing the fault after repair.
The full PDF is available in the DiagTechPro manuals library, free account required to download.
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