This code 2554 DTCs document is a troubleshooting manual for the exhaust gas pressure circuit on CM2250 engines. It explains the fault reason, ECM response, diagnostic running conditions, clearing conditions, and guided checks using INSITE™ electronic service tool. The file is useful when an amber lamp is active and exhaust gas pressure data is erratic, intermittent, or incorrect.
Official code 2554 DTCs document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB6.7 CM2250, with associated CM2250 references for ISC8.3 and ISL9, ISX15, GX, ISX11.9, QSL9, and QSB6.7 |
| System/Group | ISB6.7 CM2250 (2010-12) / DTCs / Exhaust Gas Pressure Circuit |
| Publication no. | 4022254 for ISB6.7 CM2250; associated bulletin numbers also include 4022257, 4022250, 2883445, 4022256, and 4022255 |
| Year/Revision | Last modified 11-Jun-2010 and 29-Dec-2010; year not otherwise specified |
| Pages | 15 |
| File size | 0.3 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 2 – Check the exhaust gas pressure sensor and circuit
- Guided Step 3 – Check the ECM and engine harness
- Guided Step 4 – Check the exhaust gas pressure sensor tube
- Guided Step 5 – Check ECM calibration and clear fault codes
Applicable truck models
This procedure applies to engines listed in the extract under the CM2250 family, including ISB6.7 CM2250 as the file group, plus ISC8.3 and ISL9 CM2250, ISX15 CM2250, GX CM2250, ISX11.9 CM2250, QSL9 CM2250, and QSB6.7 CM2250 where the associated procedures table names the same exhaust gas pressure sensor tube, ECM calibration code, engine wiring harness, and exhaust gas pressure sensor procedures. The diagnostic covers SPN 1209, FMI 2, PID P131, and an amber lamp response for an exhaust gas pressure sensor reading that does not agree with expected pressure behavior. For official manufacturer information, visit Cummins official website.
Who needs this code 2554 DTCs manual
Workshop owners, diesel technicians, and fleet maintenance staff need this manual when diagnosing exhaust gas pressure sensor, sensor tube, ECM connector, or engine harness faults on supported CM2250 engines. It also helps confirm repair validation steps, including coolant temperature, keyswitch cycling, high idle operation, ECM calibration review, and fault clearing with INSITE™.
The full PDF is available in the DiagTechPro manuals library, free account required to download.
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