This Cummins fault 351 document is a troubleshooting manual for the injector power supply fault on CM2250 engines. It describes Fault Code 351, PID P110, SPN 627, FMI 12/12, with the ECM reporting low measured injector boost voltage. The file is useful when a truck has smoke, low power, engine misfire, or a no-start condition.
Official Cummins fault 351 document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB6.7 CM2250, with associated coverage references for ISC8.3 and ISL9 CM2250, ISX11.9 CM2250, ISX15 CM2250, QSL9 CM2250, QSB6.7 CM2250, and other listed CM2150 or CM2220 engines |
| System/Group | ISB6.7 CM2250 (2010-12) / DTCs; Injector Power Supply Circuit |
| Publication no. | 4022254 for ISB6.7 CM2250 in the associated procedures table |
| Year/Revision | Last Modified: 11-Jun-2010; troubleshooting section Last Modified: 21-Dec-2010 |
| Pages | 13 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Document table of contents
- Overview
- FAULT CODE 351 – Injector Power Supply – Bad Intelligent Device or Component
- 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 2 – Check the ECM power supply
- Guided Step 3 – Validate the occurrence of this fault code
- Guided Step 4 – Check ECM calibration and clear fault codes
Applicable truck models
The listed primary coverage is Cummins ISB6.7 CM2250, with the injector power supply circuit also referenced for ISC8.3 and ISL9 CM2250 and ISX11.9 CM2250/ISX15 CM2250. The associated procedures table also lists ISF2.8 CM2220 E, ISF2.8 CM2220 AN, ISF3.8 CM2220 AN, ISB4.5, ISB6.7, ISD4.5, ISD6.7 CM2150 SN, ISL8.9 CM2150 SN, ISM11 CM876 SN, ISZ13 CM2150, QSL9 CM2250, and QSB6.7 CM2250. For official manufacturer information, visit Cummins official website.
Who needs this Cummins fault 351 manual
Workshop owners, diesel mechanics, and fleet technicians need this Cummins fault 351 manual when INSITE™ electronic service tool shows an active injector power supply code. It supports checks for Fault Code 441, ECM battery supply, ECM ground circuit resistance, connectors, fuses, harness condition, calibration level, and final fault clearing.
The full PDF is available in the DiagTechPro manuals library, free account required to download.
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