This document is a Cummins EGR pressure sensor troubleshooting procedure for Fault Code 3137. It covers the engine exhaust gas recirculation outlet pressure sensor circuit, low signal voltage detection, INSITE™ checks, wiring tests, ECM connector inspection, calibration review, and fault clearing steps.
Official Cummins EGR pressure sensor document details
| Brand | Cummins |
|---|---|
| Model coverage | ISX11.9 CM2250 and ISX15 CM2250 |
| System/Group | Exhaust Gas Recirculation Orifice Pressure Sensor Circuit / DTCs |
| Publication no. | Bulletin numbers 4022250 and 2883445 are listed in associated procedures |
| Year/Revision | Last Modified: 11-Jun-2010 and 20-Jul-2010 |
| 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 EGR orifice 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 this troubleshooting file for ISX11.9 CM2250 and ISX15 CM2250 engines. The associated procedures table lists Electronic Control Module (ECM), ECM Calibration Code, Engine Wiring Harness, and EGR Orifice Pressure Sensor references for those engine models, including Procedure 019-031, Procedure 019-032, Procedure 019-043, and Procedure 019-461. For official manufacturer information, visit Cummins.
Who needs this Cummins EGR pressure sensor manual
This manual is for diesel technicians, fleet maintenance shops, and workshop owners diagnosing Fault Code 3137, SPN 5019 FMI 4, where the ECM detects EGR orifice pressure sensor signal voltage below 0.25 volts for 5 seconds. It helps verify whether the fault is caused by the sensor, supply circuit, return circuit, signal circuit, engine harness, ECM connector, ECM calibration, or ECM response.
The procedure uses INSITE™ electronic service tool readings and guided tests. It includes checks for Fault Code 352, active or inactive Fault Code 3137 status, sensor connector pin condition, 4.75 to 5.25-VDC supply and return voltage, jumper-wire circuit response, and Fault Code 3136 response during signal circuit testing. It also explains that the amber CHECK ENGINE lamp and/or MIL can illuminate when the diagnostic fails, the EGR valve will be closed, and engine torque can be reduced if operation continues with the fault active.
The full PDF is available in the DiagTechPro manuals library, free account required to download.
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