This Cummins 1145 troubleshooting manual is a 13-page diagnostic PDF for Fault Code 1145, Injector Solenoid Driver Cylinder 6 – Mechanical System Not Responding or Out of Adjustment. It explains the circuit description, fault conditions, INSITE™ checks, rail fuel pressure sensor tests, ECM connector inspection, harness decisions, calibration review, and fault clearing steps.
Official Cummins 1145 troubleshooting manual document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB6.7 CM2250; associated procedure table also lists ISC8.3 and ISL9 CM2250, ISX15 CM2250, ISX11.9 CM2250, and QSL9 CM2250 |
| System/Group | ISB6.7 CM2250 (2010-12) / DTCs; Injector Solenoid Driver Cylinder 6 Circuit |
| Publication no. | 4022254 for ISB6.7 CM2250 associated procedures |
| Year/Revision | Last Modified: 11-Jun-2010; troubleshooting section Last Modified: 27-Oct-2010 |
| Pages | 13 |
| 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
- FAULT CODE 1145 – Injector Solenoid Driver Cylinder 6 – Mechanical System Not Responding or Out of Adjustment
- 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 2A – Inspect the rail fuel pressure sensor and connector pins.
- Guided Step 3 – Check the ECM and engine harness.
- Guided Step 4 – Check ECM calibration and clear fault codes.
Applicable truck models
This file applies to Cummins CM2250 engine diagnostics where Fault Code 1145 is used for Injector Solenoid Driver Cylinder 6. The file information identifies ISB6.7 CM2250 (2010-12), while the associated procedures table also names ISC8.3 and ISL9 CM2250, ISX15 CM2250, ISX11.9 CM2250, and QSL9 CM2250. The diagnostic runs continuously when the engine is running, and the ECM sets the code when injector timing does not match expected injector timing. For official manufacturer information, visit Cummins.
Who needs this Cummins 1145 troubleshooting manual manual
Workshop owners, diesel technicians, and fleet mechanics need this file when an amber CHECK ENGINE lamp or MIL is linked to SPN 656 FMI 7 on cylinder 6. The procedure helps separate injector faults from rail fuel pressure sensor, engine wiring harness, ECM, and ECM calibration problems before replacing parts.
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