This fault code 699 DTCs document is a troubleshooting manual for ECM temperature data that is erratic, intermittent, or incorrect. It explains the internal ECM temperature sensor fault, CHECK ENGINE lamp behavior, INSITE™ checks, calibration review, and when ECM replacement is required.
Official fault code 699 DTCs document details
| Brand | Cummins |
| Model coverage | ISB6.7 CM2250; also lists ISX11.9 CM2250, ISC8.3 and ISL9 CM2250, and ISX15 CM2250 in the fault summary and associated procedures. |
| System/Group | ISB6.7 CM2250 (2010-12) / DTCs; Electronic Control Module (ECM) |
| Publication no. | 4022254 for ISB6.7 CM2250 in the associated procedures table |
| Year/Revision | Last Modified: 11-Jun-2010; troubleshooting section Last Modified: 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
- 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 1A – Check for active fault codes.
- 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 fault code 699 DTCs PDF applies to engines and ECM families named in the extract, including ISB6.7 CM2250 and the related CM2250 entries for ISC8.3 and ISL9, ISX15, and ISX11.9. The associated procedures table also references other Cummins engine models for Procedure 019-031 and Procedure 019-032, but the file information identifies the ISB6.7 CM2250 DTC group. For manufacturer information, visit Cummins official website.
Who needs this code 699 DTCs manual
Workshop owners, diesel mechanics, and fleet technicians need this manual when an amber CHECK ENGINE lamp is linked to SPN 1136 FMI 2 and an internal ECM temperature reading problem. The document states that no sensor-level troubleshooting is possible because the sensor is internal to the ECM, so the decision path centers on active fault confirmation, calibration revision review, disabling and clearing the fault, and authorized ECM replacement if required.
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