This document is a Cummins turbocharger speed fault troubleshooting sheet for Fault Code 2288 on CM2150 engines. It explains the turbocharger speed sensor circuit, ECM response, diagnostic conditions, and the INSITE™ check used to confirm active or inactive counts.
Official Cummins turbocharger speed fault document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB, ISC, and ISL with CM2150; file group lists ISB6.7 CM2150 (2007-09) |
| System/Group | Turbocharger 1 Speed Circuit / DTCs |
| Publication no. | Not shown in extract |
| Year/Revision | Last Modified: 20-Jul-2010; year unknown in file data |
| Pages | 4 |
| 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.
Applicable truck models
This file applies to Cummins ISB, ISC, and ISL engines with CM2150 electronic control, and the library grouping identifies ISB6.7 CM2150 (2007-09). The extract does not name specific truck makes or chassis models, so coverage should be matched by engine family, ECM, and Fault Code 2288 before use. The component discussed is the turbocharger speed sensor mounted in the center housing of the turbocharger, with the ECM interpreting the variable reluctance signal as turbocharger speed. For official engine support and service resources, visit Cummins.
Who needs this turbocharger speed fault manual
Workshop owners, diesel mechanics, and fleet technicians need this turbocharger speed fault manual when an engine logs Fault Code 2288, SPN 103, FMI 0/15. It is useful for confirming that high turbocharger speed caused an engine power derate and that the listed result can be normal protective operation with no repair action necessary.
The full PDF is available in the DiagTechPro manuals library, free account required to download.
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