This Cummins 2765 fault code document explains Fault Code 2765 for injector bank 1 barcode calibration on Cummins electronic engines. It covers the circuit description, fault conditions, INSITE™ service tool actions, and the guided steps used to make the code inactive. The file is a 5-page PDF from the Cummins ISB6.7 CM2150 DTC group.
Official Cummins 2765 fault code document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB6.7 CM2150 (2007-09); extract also references ISC and ISL Electronic Control Module information |
| System/Group | DTCs; engine injector bank 1 barcodes; ECM injector calibration |
| Publication no. | Not shown in extract |
| Year/Revision | Last Modified: 20-Jul-2010 |
| Pages | 5 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Document table of contents
- Overview
- Circuit Description
- Component Location
- FAULT CODE 2765
- 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 – Clear the fault code.
- Guided Step 2A – Disable the fault code.
- Guided Step 2B – Clear the inactive fault codes.
Applicable truck models
This document applies to Cummins ISB6.7 CM2150 (2007-09) diagnostic trouble code work, with the extract also naming ISC and ISL Electronic Control Module coverage. The procedure concerns injector solenoid circuits, rocker housing pass-through connectors, internal injector harnesses under the valve cover, and injector barcode values stored in the ECM. The fault reason states that invalid injector barcode information has been entered, with no listed effect on performance, though the shop notes mention rough idle as a possible symptom when barcode values are incorrect. For official brand information, visit Cummins.
Who needs this Cummins 2765 fault code manual
Mechanics, fleet technicians, and workshop owners need this Cummins 2765 fault code manual when INSITE™ reports SPN 2797 FMI 13 or when injector barcode adjustable parameters must be verified after injector replacement. It is most useful when comparing ECM calibration, QuickServe™ Online engine dataplate values, and injector barcodes found under the valve cover.
The diagnostic logic is direct: the code runs continuously when the engine is running, sets when injector barcode values are not correctly entered into the ECM, and clears immediately after correct values are entered with INSITE™ electronic service tool. The guided procedure starts with key switch ON, connection of INSITE™, and a check for active Fault Code 2765. If active, the technician verifies factory installed injector barcode values in QuickServe™ Online by entering the engine serial number, selecting Service, and checking Engine Dataplate. If injectors were replaced, the valve cover must be removed to read the replacement injector barcode values. After correcting the injector barcode parameters in the ECM, the technician verifies the fault is inactive and clears inactive fault codes.
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