Cummins fault code 1896 is the Cummins EGR Valve Controller – Out of Calibration document for the ISX11.9 CM2250 (2010-12) engine platform, a 8-page PDF that reproduces the official fault code write-up read with Cummins INSITE. The exhaust gas recirculation (EGR) valve is driven by a brushless motor with three position sensors, and at each key ON the ECM runs an automatic calibration that checks the closed position of the valve.
Official document details
| Brand | Cummins |
| Model coverage | Cummins ISX11.9, ISX15, ISB6.7, ISC8.3 and ISL9 CM2250 |
| System / group | ISX11.9 CM2250 (2010-12) / DTCs |
| Fault code | 1896 — PID S146, SPN 2791, FMI 13 |
| Warning lamp | Amber |
| Publication reference | Cummins troubleshooting bulletin 2883445 (EGR valve circuit) |
| Pages | 8 |
| File size | 0.2 MB |
| Format | |
| Language | English |
What Cummins fault code 1896 means
It sets when the EGR valve fails the automatic calibration at initial key ON, being detected open beyond a calibratable value. The EGR valve stops responding to commands and EGR actuation is disabled; the aftertreatment system should be inspected for progressive damage. The document walks a technician through the summary and the guided troubleshooting steps needed to confirm and clear the code.
Document table of contents
- Overview and circuit description
- Component location
- Conditions for running the diagnostics
- Conditions for setting the fault code
- Action taken when the fault code is active
- Conditions for clearing the fault code
- Shop Talk and possible causes
- Associated procedures and guided troubleshooting steps
Applicable truck models
This troubleshooting document covers Cummins ISX11.9, ISX15, ISB6.7, ISC8.3 and ISL9 CM2250 engines in Class 6 to 8 trucks. It is filed under the ISX11.9 CM2250 (2010-12) / DTCs group and also applies to ISX12 CM2250 installations, so confirm the engine dataplate before ordering parts. Cross-reference the calibration revision with Cummins official engine support before clearing the code.
Who needs this Cummins fault code 1896 manual
Heavy-duty diesel technicians, fleet maintenance teams and workshop owners diagnosing an EGR valve calibration failure use this reference to read SPN 2791 / FMI 13 correctly and to follow the guided steps in INSITE. The possible causes it lists include:
- an EGR valve stuck open at key ON
- a mechanical or motor calibration failure
The full 8-page PDF for EGR valve fault code 1896 is available in the DiagTechPro manuals library; a free account is required to download.
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