TSB210152-070120

Service Bulletin Details

Public Details for: TSB210152-070120

This technical service bulletin describes the verification and resolution of an active fault code 8155 due to connectivity module firmware update completion issues. This is an update to a previously submitted communication.


- 9999 -

Models from 9999
9999 CUMMINS B6.7
9999 CUMMINS L9
9999 CUMMINS X12
9999 CUMMINS X15 
7/27/22, 4:09 PM
Fault Code 8154 or 8155 Caused by Acumen® Connectivity Module Software Update
Technical Service Bulletin
Technical Service Bulletin: TSB210152
Released Date: 01-Jul-2022
Fault Code 8154 or 8155 Caused by Acumen® Connectivity Module Software Update
Fault Code 8154 or 8155 Caused by Acumen®
Connectivity Module Software Update
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
B6.7 CM2450 B155B
L9 CM2450 L126B
X12 CM2450 X137B
X15 CM2450 X124B
X15 CM2450 X134B
Issue
Acumen® connectivity modules analyzed by the factory have a high rate of trouble not found.
Symptom:
Occurrence of Fault Code 8154 or 8155
No Lamp/ Silent Fault set by FC8154 or FC8155
During a firmware update of the Acumen® connectivity module FC8154 or FC8155 will
become active. Following published troubleshooting of FC8155 leads to false replacement of
the Acumen® connectivity module.
Root Cause:
Fault Code 8154 or 8155 will become active when part one of the Acumen® connectivity
module firmware update completes and will stay present until the Acumen® connectivity
module firmware update is completed.
Verification
Verify FC8154 or FC8155 is present.
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7/27/22, 4:09 PM
Fault Code 8154 or 8155 Caused by Acumen® Connectivity Module Software Update
Resolution
Follow published troubleshooting procedures for FC8154 or FC8155.
If troubleshooting tree is exhausted, do not replace Acumen® connectivity module. Release
unit back to customer.
If no root cause is identified, FC8154 or FC8155 will clear after Acumen® connectivity module
has completed firmware update. This can take a few months based on the module’s cellular
signal and the key cycle timing.
Using the Cummins Guidanz® electronic service tool, if the Acumen® connectivity module
has the new Acumen® software version, the Acumen® connectivity module must be
replaced.
Table 1, Acumen® Software Version Matrix
Existing Acumen® Software Version
New Acumen® Software Version
01.000.02&06.091.10&06.091.04
01.000.02&06.100.18&06.100.02
-
01.000.02&06.105.06&06.105.00
Document History
Date
Details
2021-7-15
Module Created
2021-8-13
Added reference to Fault Code 8154.
2022-6-29
Added Table 1. Updated Resolution section.
Last Modified: 01-Jul-2022
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