NHTSA ID Number: 10224319
Manufacturer Communication Number: T2549
TSB/Document Date: 2022-10-17
Summary
This Temporary Repair Practice is being issued to address failures related to fault codes 124 and/or 3342 on certain L9
CM2350 Hybrid
Bus engines with Allison Transmission Systems only. This TRP authorizes certified repair locations to repair failures due to the listed fault codes where troubleshooting leads to a confirmed failure of the components related to the listed fault codes.
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TSB/Document ID: T2549
Replacement Service Bulletin Number:
MFR Communication Date: 2022-09-22
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: POWER TRAIN
MFR Component System:
MFR Component Subsystem:
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L9
MY17-19 Extended Warranty TRP for Specific Fault Codes on Hybrid
Bus with Allis... Page 1 of 4
Temporary Repair Practice
TRP Number: t2549
Revision:
L9
MY17-19 Extended Warranty TRP for Specific
Fault Codes on Hybrid
Bus with Allison
Transmission
Released Date: 22-Sep2022
Expiration Date (U.S.
and Canada): 22-Sep2023
Expiration Date
(International
): 22-Sep2023
Attention
• U.S. / Canadian Dealers
• U.S. / Canadian Distr./Branches and Div. Offices (Automotive)
If additional information is required, please contact your Cummins
Warranty
Operations Group Leader.
Description
This Temporary Repair Practice is being issued to address failures related to fault codes
124 and/or 3342 on certain L9
CM2350 Hybrid
Bus engines with Allison Transmission
Systems only. This TRP authorizes certified repair locations to repair failures due to the
listed fault codes where troubleshooting leads to a confirmed failure of the components
related to the listed fault codes.
Note : This TRP only applies to engines that are no longer covered by a
Cummins
Base, Extended, or Emissions warranty program. If a Cummins![]()
coverage is available for the failed component, the claim should be filed to the
coverage that gives the most benefit to the Customer. File an Admin Only
claim to close the eligibility.
Action
In order to qualify for repair under this field action, an engine:
https://quickserve.cummins.com/qs3/pubsys2/xml/en/trp/2025/t2549.html
10/6/2022
L9
MY17-19 Extended Warranty TRP for Specific Fault Codes on Hybrid
Bus with Allis... Page 2 of 4
1.
2.
3.
4.
Have NO existing coverage, and
Must show as OPEN on QuickServe® Online for this field action, and
Must be coupled with Allison Transmission system, and
Must experience a failure due to one or more of the following fault codes: 124, 3342
Note : The ESN list is attached for reference.
After verifying that the engine meets the above requirements, perform the following
actions:
1. For FC124 and FC3342 resolution, follow the troubleshooting tree, including
applicable TSBs and highlighted service procedures, as applicable.
Material Disposition
Where applicable, items removed should be returned to ReCon for core credit. Unless
otherwise indicated, items with no core liability can be scrapped.
Reimbursements
Parts
There are no parts covered in this field action.
Note : SRTs to gain access that are required to complete the repair, that are
sufficiently explained in the claim narrative, may also be claimed on this action.
Note : All SRTs listed are OPTIONAL. Select ONLY the appropriate SRTs for
the repair performed.
Labor Using Applicable Access Code and Time
SRT Code
Description
00-90X
Technician Administrative
Time - Road/Field Repair
10-0AE
Air Leaks, Air Intake and
Exhaust Systems - Initial
Check (CMI)
11-0B8
EGR Cooler - Remove
and Install - L9
CM2350
L123B
https://quickserve.cummins.com/qs3/pubsys2/xml/en/trp/2025/t2549.html
Time (hrs)
10/6/2022
L9
MY17-19 Extended Warranty TRP for Specific Fault Codes on Hybrid
Bus with Allis... Page 3 of 4
SRT Code
Description
Time (hrs)
EGR Cooler - Clean and
Inspect for Reuse (CMI)
11-0CG
Travel
Travel is covered under this field action. Towing is not covered under this field action.
Other Claimables
Consumables are covered under this field action.
Note : Additional parts, such as o-rings, gaskets and fasteners, that are
required to complete the repair, but not listed, may be claimed in Other
Claimables. Please consolidate all consumables and claim them as one line
item in Other Claimables titled CAMPAIGN SUPPLIES or other appropriate
selections. Please include brief summaries on the details of items claimed. A
lack of documentation in the narrative may result in a reduction in claim
reimbursement or claim denial.
Claim Instructions
For Cummins
Dealers, claims for this TRP must be filed via RAPIDSERVE™ Web
(rsw.cummins.com). For information regarding RAPIDSERVE™ Web, please reference
the "Warranty" tab in QuickServe® Online. If there are additional questions, please
contact your local Cummins
Distributor.
Claim Codes
Description
Code
Account Code:
65
Pay Code:
North America Distributor = X
Pay Code:
North America Dealer = D
Pay Code:
International
Distributor = I
Pay Code:
International
Dealer = R
Failure Code:
WIRCLO
Attachments
https://quickserve.cummins.com/qs3/pubsys2/xml/en/trp/2025/t2549.html
10/6/2022
L9
MY17-19 Extended Warranty TRP for Specific Fault Codes on Hybrid
Bus with Allis... Page 4 of 4
Click here to see t2549_esn-list.xlsx
(/service/english/attachments/t2549_esn-list.xlsx)
Engine Family
Fuel System
Design Application
Market Application
Automotive
Bus
Document History
Date
Details
Document Created; 22-Sep-2022
Last Modified: 22-Sep-2022
https://quickserve.cummins.com/qs3/pubsys2/xml/en/trp/2025/t2549.html
10/6/2022
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