TSB190072-050820

Service Bulletin Details

Public Details for: TSB190072-050820

This technical service bulletin describes the verification and resolution to the driver may be able to exceed the maximum accelerator speed limit set in insite electronic service tool when in eco mode. The agility eco mode broadcast vehicle


- 9999 -

Models from 9999
9999 CUMMINS ISX12
9999 CUMMINS L9N 
Agility Blue IQ Fuel System - Eco Mode Excessive Road Speed Limit
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Technical Service Bulletin
Technical Service Bulletin:
Released Date: 08-May-2019
TSB190072
Agility Blue IQ Fuel System - Eco Mode Excessive Road Speed Limit
Agility Blue IQ Fuel System - Eco Mode
Excessive Road Speed Limit
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
• ISX12N CM2380 X120B
• L9N CM2380 L124B
Issue
Symptom:
• The driver may be able to exceed the Maximum Accelerator Speed Limit set in
INSITE™ electronic service tool when in ECO mode.
Root Cause:
• The Agility ECO Mode broadcast vehicle speed limit has a higher priority than the
Maximum Accelerator Vehicle Speed setting.
• The Agility Blue IQ fuel system has the ability to command a vehicle speed limit
based on calculated range remaining in the fuel tanks when in ECO mode. When the
fuel system determines that a reduced speed is needed to meet range requirements,
ECO mode imposes a vehicle speed limit which the engine control module (ECM)
honors. The ECM honors the Agility ECO mode speed limit the fuel system
broadcasts up to the Maximum Vehicle Speed setting, even if the Maximum
Accelerator Vehicle Speed setting is lower than the broadcast Agility ECO mode
speed limit.
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2019/tsb190072.html
5/22/2019
Agility Blue IQ Fuel System - Eco Mode Excessive Road Speed Limit
Page 2 of 2
Verification
In INSITE™ electronic service tool, Features and Parameters section, Road Speed
Governor sub section, the “Maximum Vehicle Speed” parameter value is greater than the
“Maximum Accelerator Vehicle Speed” parameter value.
Resolution
Using INSITE™ electronic service tool, set the “Maximum Vehicle Speed” parameter
equal to the “Maximum Accelerator Vehicle Speed” parameter in the Road Speed
Governor sub section of the Features and Parameters section.
Document History
Date
2019-5-2
Details
Module Created
Last Modified: 08-May-2019
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2019/tsb190072.html
5/22/2019

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