fault code 2357 DTCs is documented in this official Cummins ISX11.9 CM2250 diagnostic and troubleshooting manual. The 10-page PDF explains the EGR Valve Control Circuit – Mechanical System Not Responding or Out of Adjustment condition on the EGR valve control circuit, including the SPN, FMI and PID identifiers a technician reads with the Cummins INSITE electronic service tool.
fault code 2357 DTCs document details
| Brand | Cummins |
| Model coverage | ISB6.7 CM2250, and ISC8.3 and ISL9 CM2250 |
| System / group | EGR valve control circuit |
| Fault code | 2357 (PID S146) |
| SPN | SPN 2791 |
| FMI | FMI 7/7 |
| Warning lamp | Amber |
| Pages | 10 |
| Revision | Last modified 20-Jul-2010 |
| Format | |
| Language | English |
Document table of contents
- Circuit description and 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 table
- Guided troubleshooting steps
Common causes and symptoms
- An EGR valve motor duty cycle that exceeds the calibrated limit
- A stuck open EGR valve
Applicable truck models and engines
This document applies to the ISB6.7 CM2250, and ISC8.3 and ISL9 CM2250 engine families running the CM2250 electronic control module. When SPN 2791 / FMI 7/7 sets, EGR valve actuation is disabled. Coverage and part numbers should always be verified against current service data on the Cummins official support site before ordering components.
Who needs this fault code 2357 DTCs manual
Fleet technicians, mobile mechanics and workshop owners use this code 2357 DTCs reference to confirm the EGR valve motor diagnosis before replacing parts, and to follow the same clearing steps Cummins publishes for INSITE. Reading the live data and freeze-frame with INSITE before any parts replacement helps avoid unnecessary repairs and repeat shop visits. The revision date of 20-Jul-2010 and the SPN, FMI and PID values make it a reliable bench reference for ISX11.9 CM2250 diagnostics.
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