This Cummins 2274 troubleshooting manual is a 16-page diagnostic document for Fault Code 2274 on CM2250 engines. It covers the EGR differential pressure sensor circuit, voltage below normal or shorted to low source condition, related ECM actions, INSITE™ checks, harness inspections, and repair validation.
Official Cummins 2274 troubleshooting manual document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB6.7 CM2250, ISC8.3 and ISL9 CM2250, ISX15 CM2250, GX CM2250, ISX11.9 CM2250, QSL9 CM2250, QSB6.7 CM2250 |
| System/Group | ISB6.7 CM2250 (2010-12) / DTCs; EGR Differential Pressure Sensor Circuit |
| Publication no. | Not stated; associated bulletin numbers include 4022254, 4022257, 4022250, 2883445, 4022256, and 4022255 |
| Year/Revision | Unknown; last modified 11-Jun-2010 and 28-Dec-2010 |
| Pages | 16 |
| File size | 0.3 MB |
| Format | |
| Language | English |
Document table of contents
- Overview
- Circuit Description
- Component Location
- FAULT CODE 2274 – Exhaust Gas Recirculation Valve Delta Pressure Sensor Circuit – Voltage Below Normal or Shorted to Low Source
- 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 EGR differential pressure sensor and circuit
- Guided Step 3A – Inspect the ECM and engine harness connector pins
- Guided Step 4B – Disable the fault code
Applicable truck models
This file applies to Cummins CM2250 engine families listed in the procedure tables: ISB6.7 CM2250, ISC8.3 and ISL9 CM2250, ISX15 CM2250, GX CM2250, ISX11.9 CM2250, QSL9 CM2250, and QSB6.7 CM2250. The diagnostic explains that the ECM monitors EGR differential pressure signal voltage and sets the fault when voltage is less than 0.26-VDC for more than 8 seconds; active fault response includes amber CHECK ENGINE lamp or MIL, default EGR differential pressure value, disabled diesel exhaust fluid injection, disabled active and stationary regeneration, closed EGR valve, and possible torque reduction during extended operation. See the manufacturer at Cummins official website.
Who needs this Cummins 2274 troubleshooting manual manual
Workshop owners, diesel mechanics, and fleet technicians need this Cummins 2274 troubleshooting manual when diagnosing SPN 411 FMI 4/4 on engines using an EGR differential pressure sensor. It is useful for checking sensor supply faults, inactive faults, connector damage, 4.75 to 5.25-VDC supply checks, jumper-wire circuit response, ECM connector inspections, calibration revision checks, and final fault clearing with INSITE™ electronic service tool.
The full PDF is available in the DiagTechPro manuals library, free account required to download.
Related manuals library
Sản phẩm liên quan cho hãng này
Cùng brand theo taxonomy hiện có trong catalog WooCommerce.
Cummins Calterm Version 5.16 – Advanced ECM Control and Precision Tuning for Cummins Engines
Cummins INSITE 9.3 – The Essential Diagnostic Tool for Cummins Engines
Cummins InCal CE – The Calibration and Configuration Tool for Cummins Engines
