This Cummins aftertreatment doser fault document is a Cummins service troubleshooting file for Fault Code 1932, covering aftertreatment doser data erratic, intermittent, or incorrect conditions. It explains how the ECM detects an internal or external fuel leak in the aftertreatment fuel system and how the fault affects active diesel particulate filter regeneration.
Official Cummins aftertreatment doser fault document details
| Brand | Cummins |
|---|---|
| Model coverage | ISX11.9 CM2250 and ISX15 CM2250; file listing also references ISB6.7 CM2250 (2010-12) |
| System/Group | Aftertreatment Doser Circuit / DTCs |
| Publication no. | Bulletin 4022250 for ISX15 CM2250; Bulletin 2883445 for ISX11.9 CM2250 |
| Year/Revision | Last Modified: 11-Jun-2010; troubleshooting section Last Modified: 03-Jan-2011 |
| Pages | 9 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Document table of contents
- Overview
- Circuit Description
- Component Location
- Fault Code 1932: Aftertreatment Doser – Data Erratic, Intermittent, or Incorrect
- 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 fuel injector and fuel shutoff valve system
- Guided Step 3 – Check ECM calibration and clear fault codes
Applicable truck models
This file applies to Cummins ISX11.9 CM2250 and ISX15 CM2250 engines in the associated procedures table, with document-library coverage also tagged to ISB6.7 CM2250 (2010-12) DTCs. The procedure concerns the aftertreatment fuel injector installed in the exhaust system in the turbocharger adapter pipe, the aftertreatment fuel pressure sensor and fuel shutoff valve in the shutoff valve manifold, and the purge air actuator above the manifold. For official product and service information, visit Cummins official website.
Who needs this Cummins aftertreatment doser fault manual
Workshop technicians, fleet mechanics, and diagnostic specialists need this aftertreatment doser fault manual when Fault Code 1932 is active and regeneration is disabled until the next key cycle. It is useful for checking related active fault codes, using INSITE™ electronic service tool tests, inspecting external leaks, testing the aftertreatment fuel shutoff manifold, checking injector leakage, reviewing ECM calibration revision status, and clearing the fault after repair validation.
The full PDF is available in the DiagTechPro manuals library, free account required to download.
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