TSB190072-031020

Service Bulletin Details

Public Details for: TSB190072-031020

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 vehicl


- 9999 -

Models from 9999
9999 CUMMINS ISX12
9999 CUMMINS L9N 
3/12/2020
Agility Blue IQ Fuel System - Eco Mode Excessive Road Speed Limit
Technical Service Bulletin
Technical Service Bulletin: TSB190072
Released Date: 10-Mar-2020
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.
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.
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2019/tsb190072.html
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3/12/2020
Agility Blue IQ Fuel System - Eco Mode Excessive Road Speed Limit
Resolution
Compare the engine control module (ECM) calibration code and revision number to ECM
calibration code revisions listed in the ECM Calibration History on QuickServe® Online (QSOL) for
applicable changes related to this issue.
Document History
Date
Details
2019-5-2
Module Created
2020-3-6
Updated Resolution Section.
Last Modified: 10-Mar-2020
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2019/tsb190072.html
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