Technical Bulletin
Bulletin No: TCH-27-013 Rev 000

Subject:

Initial Release Date: 3/25/26

Revision Date: N/A

Page: 1 of 3

Bendix® EC-80™ Software Update for International® Motors

This bulletin provides instructions on how to download and run the Bendix® ECU (Electronic Control Unit) Updater tool to set
the conf_HSA parameter to “enable.” This document is ONLY applicable for vehicles identified in International Motors
Recall 26501, NHTSA Recall 26V084.

SOFTWARE UPDATE INSTRUCTIONS
NOTE: To download the software and perform the update,
a Windows® PC (Windows 10 or 11 is recommended) with
the standalone update utility downloaded, a compatible
adapter, and the manufacturer’s Windows drivers for the
adapter are required.
1. Install the software Bendix_ECU_Updater_2.0.9.0
using the setup.exe application provided by
International.

7. The software update will change the parameters of
the EC-80. To proceed with the update, click Yes.
8. Once the update has started, the screen will show
the progress. See Figure 2.
NOTE: This process may take a couple of minutes
to complete. Additionally, audible alerts may sound
and warning lamps may illuminate on the vehicle
dash during the update process.

2. Place the folder in a convenient location on the
laptop, such as the Desktop.
3. Plug a compatible adapter to the diagnostic port
located under the steering wheel.
4. Key on the vehicle and inspect the vehicle dash
to see if any warning lamps are illuminated before
beginning the update process.
NOTE: Resolve all active Bendix device Diagnostic
Trouble Codes (DTCs) before proceeding with the
software update.
5. Open the software from the connected laptop and
select the EC80_006_0.pkg file provided with the
installer.
6. Once selected, click Next. See Figure 1.

Figure 2 – Update in Progress
9. If the update is successful, the screen will show that
the software has been updated, and the procedure
is complete. See Figure 3.

Figure 1 – Start Software Update
Figure 3 – Update Successful

Bulletin No: TCH-27-013 Rev 000

Initial Release Date: 3/25/26

Revision Date: N/A

10. To complete the update, follow these steps:
a. Key off the vehicle.
b. Wait at least ten (10) seconds.
c.

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12. If the detected ECU is not eligible for an update, an
ECU failure message may appear and no further
action is required. See Figure 4.

Key on the vehicle (engine crank not required).

d. Wait at least sixty (60) seconds and confirm that
there are no active Bendix DTCs on the vehicle.
If there are any active Bendix DTCs, reattempt
the software update starting at Step 4.
e. On the connected laptop, exit the software.
f.

Key cycle the vehicle again, start the engine,
and leave the vehicle running for at least sixty
(60) seconds to fully complete the update.

11. If the software update fails, the screen will show
a failure message that may include one of the
following failure types:
•

(Figure 4) ECU Ineligible for Update Detected ECU is not included in the software
update. See Step 12.

•

(Figure 5) VIN Not Included in Software
Update - Detected VIN is not included in the
software update. See Step 13.

•

(Figure 6) RP1210 Configuration Error Adapter is not connecting or configuration
settings are not correct. See Step 14.

•

(Figure 7) Wrong Baud Rate Error Configuration settings are not correct. See
Step 14.

Figure 4 – ECU Ineligible for Software Update
13. If the VIN of the vehicle is not in the impacted
population, there will be indication that the VIN is
either not received or VIN is not included in the
software update. No further action is required. See
Figure 5.

Figure 5 – VIN Not Included in Software Update

Bulletin No: TCH-27-013 Rev 000

Initial Release Date: 3/25/26

14. If the utility is having issues connecting to the
adapter or there is a configuration error, an error
message similar to Figure 6 or Figure 7 may appear.

Revision Date: N/A

Page: 3 of 3

b. Open the settings within software and verify
the appropriate adapter, baud, and channel are
selected. See Figure 8 for an example of the
Configuration settings.

Figure 6 – RP1210 Configuration Error
Figure 8 – Example Software Update Communication
Configuration Settings Screen
c.

Disconnect and reconnect the adapter from
both the USB port and the vehicle diagnostic
port.

d. Close all open diagnostic programs and
reattempt the software update from Step 4.

TECHNICAL SUPPORT

Figure 7 – ECU Not Detected/Wrong Baud Rate Error
Perform the following troubleshooting steps:

For support, first refer to the OEM instructions provided by
International®. Additional support is available from Bendix
by phone at 1-800-AIR-BRAKE (1-800-247-2725). Bendix
representatives are available Monday through Thursday,
8:00 a.m. – 6:00 p.m., and Friday, 8:00 a.m. – 5:00 p.m. ET.

a. Verify the adapter has power and is reading
the vehicle data. Refer to applicable adapter
manufacturer’s the technical documentation
for more information.

Any references in this document to INTERNATIONAL and WINDOWS are solely for identification and cross reference purposes.
The trademarks are the property of their respective companies.
Unless otherwise indicated, the trademarks used in this document, including Bendix, are United States trademarks
owned by, or licensed to, Bendix Commercial Vehicle Systems LLC.
© 3/2026 Bendix Commercial Vehicle Systems LLC, a member of Knorr-Bremse • All Rights Reserved