This Cummins fault 1974 document is a troubleshooting PDF for crankcase pressure faults on Cummins CM2150 engines. It explains the crankcase pressure sensor circuit, fault conditions, service-tool checks, and clearing steps for Code 1974.
Official Cummins fault 1974 document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB, ISC, and ISL with CM2150; file group lists ISB6.7 CM2150 (2007-09) |
| System/Group | DTCs; Crankcase Pressure Sensor |
| Publication no. | Not shown in the extract |
| Year/Revision | Last Modified: 20-Jul-2010; year unknown in file data |
| 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 1974
- 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 active fault codes.
- Guided Step 2 – Clear the fault code.
- Guided Step 2A – Disable the fault code.
- Guided Step 2B – Clear the inactive fault codes.
Applicable truck models
This file applies to Cummins ISB, ISC, and ISL engines with CM2150 control modules, with the library grouping identifying ISB6.7 CM2150 (2007-09). The document also references ISB CM2100 and CM2150 service manual procedure 003-021 for the Crankcase Ventilation Filter, and ISC and ISL CM2150 service manual procedure 003-019 for the Crankcase Breather Element. For official manufacturer information, visit Cummins official website.
Who needs this Cummins fault 1974 manual
Workshop owners, diesel mechanics, and fleet technicians need this fault 1974 manual when a truck logs SPN 101 FMI 0/15 or a Maintenance lamp related to crankcase pressure. It supports diagnosis with INSITE™ electronic service tool, active fault-code checks, crankcase breather filter replacement decisions, and inactive code clearing.
The full PDF is available in the DiagTechPro manuals library, free account required to download.
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