This Cummins code 115 document is a troubleshooting PDF for Fault Code 115 on CM2250 engines. It explains the engine magnetic speed/position sensor circuit, the fault reason, operating effects, clearing conditions, and guided INSITE™ checks for technicians diagnosing a no-start or shutdown condition.
Official Cummins code 115 document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB6.7 CM2250; associated tables also list ISC8.3 and ISL9 CM2250, ISX15 CM2250, ISX11.9 CM2250, QSL9 CM2250, QSB6.7 CM2250, ISF2.8 CM2220, ISF3.8 CM2220, ISB4.5, ISD4.5, ISD6.7 CM2150, ISL8.9 CM2150, ISM11 CM876, and ISZ13 CM2150. |
| System/Group | ISB6.7 CM2250 (2010-12) / DTCs; Engine Magnetic Speed/Position Sensor Circuit |
| Publication no. | 4022254 for ISB6.7 CM2250 in the associated procedures table |
| Year/Revision | Last modified 11-Jun-2010 and 20-Jul-2010 |
| Pages | 6 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Document table of contents
- Overview
- Circuit Description
- Component Location
- Conditions for Running the Diagnostics
- FAULT CODE 115 – Engine Magnetic Speed/Position Lost Both of Two Signals – Data Erratic, Intermittent, or Incorrect
- 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 1A – Check for Fault Code 115
- Guided Step 2 – Check ECM calibration and clear fault codes
- Guided Step 2A – Check if an ECM calibration update is available
- Guided Step 2B – Disable the fault code
Applicable truck models
This file applies to Cummins CM2250 engine platforms shown in the extract, especially ISB6.7 CM2250 for the listed DTC group. The overview also names ISX11.9 CM2250, ISC8.3 and ISL9 CM2250, and ISX15 CM2250 in relation to the Engine Magnetic Speed/Position Sensor Circuit. The associated procedures table expands the reference list to multiple Cummins electronic control module and calibration procedure entries, including Procedure 019-031 for the Electronic Control Module (ECM) and Procedure 019-032 for ECM Calibration Code. For official manufacturer information, visit Cummins official website.
Who needs this Cummins code 115 manual
Workshop owners, diesel mechanics, and fleet technicians need this Cummins code 115 manual when the ECM detects that crankshaft position and camshaft position signal inputs are reversed. The document states that the engine will shut down or will not start, and it directs the repair path toward checking active or inactive counts, swapping engine position sensor connectors, verifying ECM calibration, and clearing the fault with INSITE™ electronic service tool.
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