This Cummins 1928 fault code document is a troubleshooting procedure for the aftertreatment fuel pressure sensor circuit. It explains the fault description, conditions, ECM actions, diagnostic checks, harness tests, sensor checks, calibration review, and clearing process for the PDF file Code 1928.pdf.
Official Cummins 1928 fault code document details
| Brand | Cummins |
|---|---|
| Model coverage | ISX11.9 CM2250, ISX15 CM2250, GX CM2250 |
| System/Group | Aftertreatment Fuel Pressure Sensor Circuit; DTCs |
| Publication no. | Not shown in the extract; associated bulletin numbers include 4022250 and 2883445 |
| Year/Revision | Last Modified: 11-Jun-2010; troubleshooting section Last Modified: 19-Jan-2011 |
| Pages | 15 |
| 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
- 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 1 fuel pressure sensor and circuit.
- Guided Step 3 – Check the ECM and engine harness.
- Guided Step 4 – Check ECM calibration and clear fault codes.
Applicable truck models
The extract identifies the procedure for ISX11.9 CM2250, ISX15 CM2250, and GX CM2250 engine models. It covers SPN 3480 FMI 4/4 for an aftertreatment fuel pressure sensor signal voltage below normal or shorted to a low source, with the sensor located in the aftertreatment shutoff valve assembly. For manufacturer information, visit Cummins official website.
Who needs this 1928 fault code manual
Use this manual when diagnosing an active or inactive Fault Code 1928 with INSITE™ electronic service tool. It is useful for diesel technicians checking 5 volt supply, return, signal response, connector pins, engine harness faults, ECM response, sensor replacement decisions, and ECM calibration status.
The full PDF is available in the DiagTechPro manuals library, free account required to download.
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