This fault code 1117 DTCs document is a troubleshooting manual for the ECM power supply circuit on ISB6.7 CM2150 engines. It explains why the ECM logs Power Supply Lost With Ignition On and gives guided checks for batteries, connectors, OEM harness wiring, fuses, keyswitch input, and code clearing with INSITE™.
Official fault code 1117 DTCs document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB6.7 CM2150 (2007-09); extract also references ISB, ISC, and ISL with CM2150 |
| System/Group | DTCs; ISB, ISC, and ISL with CM2150 – ECM Power Supply Circuit |
| Publication no. | Not shown in extract |
| Year/Revision | Last Modified: 20-Jul-2010 |
| Pages | 14 |
| File size | 0.4 MB |
| Format | |
| Language | English |
Document table of contents
- Overview
- Circuit Description
- Component Location
- Conditions for Running the Diagnostics
- FAULT CODE 1117
- 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 for fault codes.
- Guided Step 2 – Check the batteries and the power connector.
- Guided Step 3 – Check the OEM power harness.
- Guided Step 4B – Clear the inactive fault codes.
Applicable truck models
This file applies to Cummins ISB6.7 CM2150 engines in the 2007-09 coverage group. The extract also identifies the circuit as used on ISB, ISC, and ISL with CM2150, but truck make, chassis model, and battery location are OEM-dependent and must be checked in the OEM service manual. For engine support and service information, visit the Cummins official website.
Who needs this fault code 1117 DTCs manual
Workshop owners, diesel mechanics, and electrical diagnostic technicians need this fault code 1117 DTCs manual when an engine has intermittent ECM power loss, hard starting, engine dying, inaccurate trip data, or incomplete ECM power down after key OFF.
The procedure centers on SPN 627 FMI 2/2 and a primary ECM supply voltage drop below +6.2-VDC while the keyswitch is ON, or loss of retained battery voltage during the required 30 second shutdown period after key OFF. It directs the technician to verify ECM calibration, read active and inactive faults with INSITE™, inspect battery connections, confirm cranking voltage, inspect ECM connector pins, check OEM fuse installation, locate blown fuse causes, inspect add-on wiring at the positive battery terminal, measure battery supply circuit resistance, and verify the keyswitch input wire is not interrupted by relays or solenoids. The repair paths include charging or replacing the battery, repairing or replacing the OEM harness, repairing the engine harness, replacing connector seals, and contacting a Cummins® Authorized Repair Location if the diagnostic steps do not make the fault inactive.
Full PDF available in the DiagTechPro manuals library, free account required to download.
Related manuals library
Sản phẩm liên quan cho hãng này
Cùng brand theo taxonomy hiện có trong catalog WooCommerce.
Cummins Calterm Version 5.16 – Advanced ECM Control and Precision Tuning for Cummins Engines
Cummins INSITE 9.3 – The Essential Diagnostic Tool for Cummins Engines
Cummins InCal CE – The Calibration and Configuration Tool for Cummins Engines
