This Cummins 2311 fault code document is a diagnostic troubleshooting guide for the electronic fuel injection control valve circuit on CM2150 engines. It explains why Fault Code 2311 sets, what the ECM does when the fault is active, and how to test the fuel pump actuator circuit with INSITE™ and resistance checks.
Official Cummins 2311 fault code document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB, ISC, and ISL with CM2150; file group lists ISB6.7 CM2150 (2007-09) |
| System/Group | Electronic Fuel Injection Control Valve Circuit; DTCs |
| Publication no. | Not shown in extract |
| Year/Revision | Last Modified: 20-Jul-2010 |
| Pages | 12 |
| File size | 0.3 MB |
| Format | |
| Language | English |
Document table of contents
- Overview
- Circuit Description
- Component Location
- Conditions for Running the Diagnostics
- FAULT CODE 2311
- 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 fuel pump actuator.
- Guided Step 3 – Check the engine harness.
- Guided Step 4 – Clear the fault codes.
Applicable truck models
This PDF applies to Cummins ISB, ISC, and ISL engines with CM2150 control, with the library group identifying ISB6.7 CM2150 (2007-09). The document covers the fuel pump actuator valve on the engine-mounted fuel pump housing, the ECM-controlled pulse width modulated driver circuit, and related checks for the electronic fuel injection control valve circuit. For current manufacturer information, visit the Cummins official website.
Who needs this Cummins 2311 fault code manual
Workshop technicians, fleet mechanics, and diagnostic specialists use this file when Fault Code 2311, SPN 633, FMI 11/31 is active or has high inactive counts. It is useful when the amber CHECK ENGINE light is on, fuel rail pressure is higher than commanded, or the fault appears during a road test.
The procedure directs the technician to read fault codes with the INSITE™ electronic service tool, inspect fuel pump actuator connector pins, measure actuator resistance, check for a short to ground, inspect ECM and engine harness connectors, and test harness resistance. It also includes an intermittent harness check by manipulating the harness from the ECM connector toward the actuator while the engine idles, watching for Fault Codes 2311, 271, and/or 272.
Repair direction in the extract includes cleaning connector pins, repairing damaged harnesses or connectors, replacing the fuel pump actuator when resistance or ground-short checks fail, and returning to troubleshooting or contacting a Cummins® Authorized Repair Location if the fault will not disable after repeated checks. The full PDF is available in the DiagTechPro manuals library, free account required to download.
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