This Cummins 2288 troubleshooting manual is a 6-page PDF covering Fault Code 2288 for turbocharger 1 speed on CM2250 engines. It explains the variable reluctance turbocharger speed sensor, the ECM response to high turbocharger speed, and the INSITE™ checks used to confirm and clear the code.
Official Cummins 2288 troubleshooting manual document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB6.7 CM2250; also references ISX11.9 CM2250, ISC8.3 and ISL9 CM2250, ISX15 CM2250, GX CM2250, QSL9 CM2250, QSB6.7 CM2250, and ISL8.9 CM2150 SN |
| System/Group | ISB6.7 CM2250 (2010-12) / DTCs; Turbocharger 1 Speed Circuit |
| Publication no. | Not shown in extract |
| Year/Revision | Last Modified: 11-Jun-2010; troubleshooting procedure Last Modified: 28-Dec-2010 |
| Pages | 6 |
| 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 1A – Check for Fault Code 2288.
- Guided Step 2 – Check ECM calibration and clear fault codes.
- Guided Step 2A – Check if an ECM calibration update is available.
- Guided Step 2B – Disable the fault code.
Applicable truck models
This document applies to Cummins CM2250 engine platforms listed in the procedure, including ISB6.7 CM2250, ISC8.3 and ISL9 CM2250, ISX11.9 CM2250, ISX15 CM2250, GX CM2250, QSL9 CM2250, and QSB6.7 CM2250. The extract identifies the fault as “Turbocharger 1 Speed – Data Valid But Above Normal Operating Range – Least Severe Level,” with PID P103, SPN 103, and FMI 15. The component location is the turbocharger speed sensor mounted in the center housing of the turbocharger. For manufacturer information, visit the Cummins official website.
Who needs this Cummins 2288 troubleshooting manual
Workshop technicians, fleet mechanics, and diagnostic tool users need this file when INSITE™ shows active or inactive counts of Fault Code 2288. The procedure is useful for confirming that the ECM derate was caused by high turbocharger speed, checking whether an ECM calibration update is available, and clearing the fault after the listed conditions are met.
The full PDF is available in the DiagTechPro manuals library, free account required to download.
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