NHTSA ID Number: 11007053
Manufacturer Communication Number: TSB220232
TSB/Document Date: 2024-09-05
Summary
This Technical Service Bulletin describes the recalibration steps for the software logic and calibration values of the Load Based Speed Control feature within the engine control module calibration which may interact with OEM Load Based Speed Control in an unintended manner, resulting in low power. This is an update to a previously submitted communication.
9/3/24, 4:22 PM
Load Based Speed Control Overriding the OEM Load Based Speed Control, Causing Limitations in Engine Speed and Producing an …
Technical Service Bulletin
Technical Service Bulletin: TSB220232
Released Date: 20-Aug-2024
Load Based Speed Control Overriding the OEM Load Based Speed Control, Causing
Limitations in Engine Speed and Producing an Undesired Output as a Result
Load Based Speed Control Overriding the OEM Load
Based Speed Control, Causing Limitations in Engine
Speed and Producing an Undesired Output as a
Result
Warranty Statement
The information in this document has no effect on present warranty coverage or repair practices,
nor does it authorize TRP or Campaign actions.
Contents
Product Affected
Engines:
X15
CM2450 X124B
X15 CM2450 X134B
X15 CM2450 X142B
Original Equipment Manufacturer:
Navistar® International® truck
Issue Summary
Symptom:
Low Power
Root Cause:
OEM Load Based Speed Control is password protected.
When OEM Load Based Speed Control is enabled, the engine will not use the RPM Breakpoint
of Load Based Speed Control if it is higher than the RPM Breakpoint of OEM Load Based
Speed Control.
If ECM calibration was recently updated:
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2022/tsb220232.html
1/3
9/3/24, 4:22 PM
Load Based Speed Control Overriding the OEM Load Based Speed Control, Causing Limitations in Engine Speed and Producing an …
New Load Based Speed Control strategy change in the ECM calibration allows Load
Based Speed Control breaking point value to override OEM Load Based Speed Control
breakpoint value even when Load Based Speed Control is shown as disabled. Logic will
always consider the lowest value between both Load Based Speed Control and OEM
Load Based Speed Control when OEM Load Based Speed Control is enabled causing a
limitation in engine speed.
Verification
Verify unable to meet Load Based Speed Control RPM Breakpoint.
Use the recommended Cummins® electronic service tool or equivalent to verify OEM Load
Based Speed Control is enabled.
If ECM calibration was recently updated, verify:
Units with manual transmission powered by an X15 engine.
Load Based Speed Control is disabled.
Engine Speed is being limited at Load Based Speed Control breaking point RPM value.
Resolution
Use the recommended Cummins® electronic service tool or equivalent to find the current
ECM code and revision number in the ECM.
Compare the ECM code and revision number in the ECM to the calibration revision listed in
the ECM calibration revision history for applicable changes. If a calibration update for this
issue is available, the ECM calibration revision must be that revision or higher.
If ECM calibration is or was recently updated:
Verify that Load Based Speed Control RPM Breakpoint matches the RPM Breakpoint of
OEM Load Based Speed Control (See Figure 1). Both must have same Breakpoint value.
If Load Based Speed Control is disabled, Load Based Speed Control must be
enabled to view or edit RPM Breakpoint. This is the only value to edit since OEM
Load Based Speed Control is OEM password protected.
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2022/tsb220232.html
2/3
9/3/24, 4:22 PM
Load Based Speed Control Overriding the OEM Load Based Speed Control, Causing Limitations in Engine Speed and Producing an …
Figure 1, Load Based Speed Control and OEM Load Based Speed Control Parameters.
Complete the changes and road test unit to verify Engine Speed is no longer limited by Load
Based Speed Control.
Document History
Date
Details
2022-11-14
Module Created
2023-11-13
Updated Title, Issue Summary, Verification, Resolution, and added
Figure 1.
2024-8-7
Updated entire document.
Last Modified: 20-Aug-2024
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2022/tsb220232.html
3/3
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: TSB220232
Replacement Service Bulletin Number:
MFR Communication Date: 2024-08-21
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
- [Notice] When you receive a used device, it may be a customer return resold by Amazon without inspection. You can exchange it for a new one through Amazon. As this situation is unavoidable, we sincerely apologize. For any issues, contacting us via Amazon's "Messages" is the best way. THINKSCAN 689BT Bidirectional Scan Tool Can Be Used Immediately After It is Turned On, Without Complicated Registration Process, Which is More Convenient & Quick.
- Full Bi-Directional Control & 3000+ Active Tests: Take control and test components like actuators, fuel injectors, relays, and cooling fans in real time. You’ll quickly see if the problem is in the part itself or the control module — saving you hours of guesswork and frustrating trial-and-error.
- Advanced ECU Coding Capabilities: Handle module matching and hidden feature activation with confidence. When you replace an ECU or want to customize settings, this obd2 scanner diagnostic bi directional tool gives you the professional-level capabilities you need without the dealership price tag.
- 34+ Useful Reset and Maintenance Functions: Complete everyday service tasks smoothly with a wide range of helpful reset and maintenance functions. Whether you’re keeping up with regular upkeep or tackling a specific job, this scanner makes maintenance simpler and less stressful for both DIYers and pros.
- Comprehensive Full System Diagnostics: Diagnose every major system — Engine, Transmission
, ABS, SRS, TPMS, and more — all in one place. Finally stop wondering if you’re missing something important; get the full picture and clear codes with ease.
- Top Reasons to Choose the D7S OBD2 Scanner: XTOOL D7S car scan tool, an upgrade of XTOOL D7, offers comprehensive features for automotive technicians, workshops, and DIY enthusiasts 1. Upgraded Hardware: 2+64GB memory, rear camera, intuitive interface, foldable bracket 2. Complete Diagnostics: FCA Autoauth, OE-level all system scan, 39+ maintenance services, 4K+ bidirectional, CANFD/DoIP protocol 3. Advanced Capabilities: ECU coding, PMI functions 4. Wide Compatibility: Support 10,000+ models, covering 99% vehicle brands 5. Multi-language: Available in 22+ languages, No IP Restrictions 6. 3-Year Updates: Save 300 bucks on software updates for the latest features and optimizations
- 2026 Upgraded D7S Car Scanner Features: The newly 2026 D7S V2.0 scanner for car brings exciting features for advanced vehicle diagnostics and enhanced user experience 1. FCA AutoAuth: Now supports FCA SGW module for Chrysler, for Jeep, for Dodge (2018+), for Fiat (2017+), enabling faster vehicle communication without gateway restrictions 2. PMI (Offline ECU Programming): Allows for Ford, for Lincoln, and for Mazda ECU programming for new modules 3. Optimized Diagnostic Report 2.0: Personalized reports with logos and customer info for auto shops. Note: Compatibility varies by cars, please check before order
- Cost-effective ECU Coding Scan Tool for Specific Brands: Enhance your vehicle's performance with XTOOL D7S! This obd2 scanner all systems bidirectional offers advanced capabilities at an affordable price, supports online for BMW, for Benz and offline for BENZ, for MIT, along with PMI functions for Ford, for Mazda, and for Lincoln. Ideal for technicians and DIY enthusiasts, this automotive scanner diagnostic tool optimizes vehicle performance and enhances the driving experience. Note: Not for all cars and modules, please send car VIN to check the compatibility before purchase
- OE All System Diagnostic & 8 Pids Graphing: XTOOL D7S is a comprehensive all system bi directional obd2 scanner that delivers dealer-level diagnostics, completely controlling over your vehicle’s performance and health. This automotive scan tool can read and clear DTCs, view live data and ECU information, retrieve freeze frames, and perform active tests and full obd2 functions. This bi-directional scan tool can can identify your vehicle's make, model, and year information with just one click and show up to 8 PIDs live data with options for CSV viewing, playback, and recording for in-depth analysis. It is easy-to-use for both professionals and beginners, helping pinpoint issues efficiently
- 3 Years Software Update, Value for Money: With 3 years of software updates and 22+ languages(no IP restrictions), XTOOL D7S auto scanner code scanner ensures ongoing compatibility for the latest car models and improved diagnostic functions. This all system vehicle diagnostic scanner comes with a 30-day return policy and a 24-month repair for dependable performance. XTOOL are dedicated to your satisfaction, so enjoy seamless support and lifetime expert assistance. Should you encounter any issues or concerns, don’t hesitate to reach out XTOOL. D7S with newest update with 22 languages freely transfer without authorization, check details from setting-language or from XTOOL
- 【✅Compared to BOSSCOMM IF742, IF745 Offers Full-System Diagnostics】The BOSSCOMM IF745 car diagnostic scanner is an upgraded model of IF742. In addition to supporting all OBD2 Code Reader functions and 6 reset options (ABS/EPB/SAS/BMS/Oil/Throttle), it expands diagnostics from 4 systems (Check Engine/ABS/SRS/Transmission) to vehicle All systems, including Steering, Suspension, and Body Electronics. This provides deeper, more comprehensive diagnostic capabilities.
- 【✨6 Essential Resets: ABS Bleeding, Oil, EPB, SAS, Throttle, BMS】The BOSSCOMM IF745 obd2 scanner diagnostic tool swiftly purges air from brake lines to restore braking sensitivity, fine-tunes maintenance cycles to eliminate false alerts, resolves parking brake issues with one-click control, recalibrates steering sensors for stability, optimizes engine idling/acceleration for smoother performance, and deeply resets battery systems to extend lifespan and range via precise parameter adjustments.❗NOTE: Does NOT support bidirectional control, coding, or programming.
- 【✨Deep Diagnostics for All Vehicle System Modules】Beyond code reading/clearing and ECU information retrieval, our all-in-one data stream feature lets you inspect all current fault codes and their locations across the vehicle’s systems. This vehicle code reader helps you turn off dashboard warning lights and perform a comprehensive self-check of your car at home—no more back-and-forth trips to the repair shop or hefty inspection fees.
- 【✨10 OBD2 Functions】The BOSSCOMM IF745 scan tool’s DTC Lookup instantly translates fault codes into user-friendly explanations, its I/M Readiness feature streamlines emissions testing with a single tap, and Freeze Frame lets you pinpoint the exact moment of a fault for in-depth root-cause diagnosis. Combined with a live data dashboard and advanced diagnostics (O2S, OBMon, EVAP), it delivers comprehensive insights for confident troubleshooting.
- 【✨10,000+ Car Models, AutoVIN, 13 Languages】The BOSSCOMM IF745 vehicle scanner diagnostic tool covers 73+ global car brands and offers support in 13 languages, making it perfect for DIYers, auto mechanics, or as a thoughtful gift. With a single-click AutoVIN feature, it instantly retrieves vehicle serial numbers, streamlining diagnostics for users globally. This adaptable tool balances user-friendliness with precision, catering to both personal and professional requirements.✅Unsure about compatibility? Compatibility will vary on vehicles' model and year, pls reach us via 📧 [email protected] 📧 before purchase.
This product presentation was made with AAWP plugin.