This document is a Cummins EGR fault 1896 troubleshooting file for the EGR valve controller out-of-calibration diagnostic. It explains the circuit description, fault conditions, ECM response, Cummins INSITE checks, EGR valve replacement decision point, and inactive fault clearing process for the listed engine families.
Official Cummins EGR fault 1896 document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB, ISC, and ISL; ISB6.7 CM2150 (2007-09) |
| System/Group | ISB6.7 CM2150 (2007-09) / DTCs; ISB, ISC, and ISL – EGR Valve Circuit |
| Publication no. | Not specified in the file extract |
| Year/Revision | Last Modified: 20-Jul-2010 |
| Pages | 7 |
| 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 active fault codes.
- Guided Step 2 – Check the EGR valve operation.
- Guided Step 2A – Check for active fault codes.
- Guided Step 3 – Clear the fault code.
- Guided Step 3A – Disable the fault code.
- Guided Step 3B – Clear the inactive fault codes.
Applicable truck models
This file applies to Cummins ISB, ISC, and ISL engines using the EGR valve circuit described in the diagnostic, including ISB Series 6.7L Engines with CM2100 and CM2150 Common Rail Fuel Systems and ISC and ISL CM2150 service coverage referenced by the procedure notes. The extract does not name specific truck makes or chassis models, so application should be confirmed by engine family, ECM calibration, and active Fault Code 1896 details in INSITE™ electronic service tool. For manufacturer information, visit Cummins official website.
Who needs this Cummins EGR fault 1896 manual
Mechanics, fleet technicians, and workshop owners need this manual when an amber CHECK ENGINE light is linked to Fault Code 1896, PID S146, SPN 2791, FMI 13/13. It is useful for confirming whether the EGR valve is stuck open, checking ECM calibration history on QuickServe™ Online, performing the key-cycle diagnostic, and deciding when to replace the EGR valve assembly.
The full PDF is available in the DiagTechPro manuals library, free account required to download.
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