This Cummins ISB coolant fault document is a diagnostic sheet for Fault Code 197, covering low engine coolant level detection on CM2150 engines. It explains the coolant level sensor circuit, ECM response, fault-code conditions, basic INSITE checks, and the recommended coolant or sensor follow-up.
Official Cummins ISB coolant fault document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB, ISC, and ISL with CM2150; ISB6.7 CM2150 (2007-09) |
| System/Group | DTCs; coolant level sensor and engine protection diagnostics |
| Year/Revision | Year unknown; last modified 20-Jul-2010 |
| Pages | 4 |
| 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
- 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 197.
Applicable truck models
This file applies to Cummins ISB, ISC, and ISL engines with CM2150 electronic control modules, including ISB6.7 CM2150 coverage for 2007-09 diagnostic fault-code information. The document identifies the coolant level sensor as typically located in the radiator top tank or surge tank, with OEM troubleshooting and repair information required for the exact vehicle location. It also references ISB Series 6.7L Engines with CM2100 and CM2150 Common Rail Fuel Systems, plus ISC and ISL CM2150 service manual coverage through the listed service manual bulletins. For manufacturer information, visit Cummins official website.
Who needs this ISB coolant fault manual
Workshop owners, diesel mechanics, and fleet technicians need this manual when Fault Code 197, PID P111, SPN 111, or FMI 1/18 appears during a coolant-level complaint. It is useful for confirming whether the fault is caused by low coolant in the radiator top tank or surge tank, an ECM calibration issue, or a likely coolant level sensor malfunction when the level is not low.
The full PDF is 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 INSITE v10 – The Essential Diagnostic Tool for Cummins Engines
Cummins Calterm Version 5.16 – Advanced ECM Control and Precision Tuning for Cummins Engines
Cummins InCal CE – The Calibration and Configuration Tool for Cummins Engines
