This Cummins ISB6.7 115 document explains Code 115 for engine magnetic speed/position signals on CM2150 engines. It covers the circuit description, fault conditions, ECM response, Shop Talk notes, and guided INSITE™ troubleshooting steps for reversed crankshaft and camshaft position sensor connectors.
Official Cummins ISB6.7 115 document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB, ISC, ISL with CM2150; ISB6.7 CM2150 (2007-09) |
| System/Group | DTCs; Engine Magnetic Speed/Position |
| Year/Revision | Last Modified: 20-Jul-2010 |
| Pages | 5 |
| 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
- 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 – Clear the fault code.
- Guided Step 2A – Disable the fault code.
- Guided Step 2B – Clear the fault codes.
Applicable truck models
This file applies to Cummins ISB, ISC, and ISL engines with CM2150, including ISB6.7 CM2150 coverage for 2007-09 diagnostic trouble codes. The fault described is Fault Code 115, PID P190, SPN 612, FMI 2/2, where the ECM detects that the crankshaft position and camshaft position signal inputs are reversed. The sensors are hall effect type sensors supplied by the ECM with a 5 volt supply and return circuit. Both engine position sensors are located on the back side of the front gear housing above the fuel pump drive, according to the component location note. Official manufacturer information is available from Cummins.
Who needs this Cummins ISB6.7 115 manual
Workshop owners, diesel mechanics, and fleet technicians need this ISB fault code manual when diagnosing a red STOP ENGINE light with Fault Code 115 on CM2150 engines. The procedure focuses on checking the code with INSITE™ electronic service tool, swapping the engine position sensor connectors when required, disabling the fault by idling the engine for 1 minute, and clearing inactive fault codes after the repair.
The full PDF is available in the DiagTechPro manuals library, free account required to download.
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