This Cummins fault 2765 document is a troubleshooting PDF for Engine Injector Bank 1 Barcodes – Out of Calibration. It explains how the ECM uses fuel injector barcode data, when the diagnostic runs, why the fault sets, and how INSITE™ electronic service tool is used to correct injector barcode parameters.
Official Cummins fault 2765 document details
| Brand | Cummins |
|---|---|
| Model coverage | ISX11.9 CM2250, ISC8.3 and ISL9 CM2250, ISX15 CM2250, QSL9 CM2250, QSB6.7 CM2250, and ISB6.7 CM2250 group listing |
| System/Group | DTCs; Engine Injector Bank 1 Barcodes – Out of Calibration |
| Publication no. | Not shown in the extract; associated bulletin numbers include 4022257, 4022250, 2883445, 4022256, and 4022255 |
| Year/Revision | Last Modified: 11-Jun-2010 and 20-Jul-2010 |
| Pages | 6 |
| 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 1A – Check for active fault codes
- Guided Step 2 – Check ECM calibration and clear fault codes
- Guided Step 2A – Check if an ECM calibration update is available
- Guided Step 2B – Disable the fault code
Applicable truck models
The extract identifies this procedure for Cummins CM2250 engine platforms, including ISX11.9 CM2250, ISC8.3 and ISL9 CM2250, ISX15 CM2250, QSL9 CM2250, and QSB6.7 CM2250 in the associated procedures table. The file information also places the document in the Cummins ISB6.7 CM2250 (2010-12) DTCs group. The diagnostic concerns injector barcode values programmed into the ECM, not a chassis-specific system, so use the engine model and ECM calibration information to confirm applicability. For manufacturer information, visit the Cummins official website.
Who needs this Cummins fault 2765 manual
This manual is useful for diesel mechanics, fleet workshops, and repair locations diagnosing an active Fault Code 2765 where injector barcode information is missing, invalid, or entered incorrectly. It is also relevant after injector replacement, when the valve cover may need to be removed to read replacement injector barcodes before entering them into the ECM with INSITE™ electronic service tool.
The procedure directs the technician to check active fault codes, record injector barcode information, compare the ECM code and revision number with the ECM Calibration Revision History, and calibrate the ECM if a required update is available. It also states that a keyswitch cycle is required to save barcode information, and that the fault status changes to inactive after correct barcode values are entered and the diagnostic runs and passes.
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