AFC-12949

SB-10051644-2352
Authorized Field Change
AFC 12949
Date: January 2013
Subject File: Engine
Subject: MaxxForce® DT, 9, and 10 Electronic Control Module (ECM) recalibration for certain vehicles
marked in Service Portal™ with AFC 12949 to prevent possible vehicle downtime due to Diesel Particulate
Filter (DPF) overload.
Model: WorkStar®, DuraStar®, CE C Bus, CE S Bus, HC C Bus, RE C Bus, RE S Bus, and 1300 FBC
Start Date: 12 September 2011 End Date: 29 November 2012
Engine Family: MaxxForce® DT, 9, and 10
DESCRIPTION
This AFC applies to certain bus and truck models listed above that were built with MaxxForce® DT, 9, and 10
engines between 12 September 2011 and 29 November 2012. This campaign will require recalibration of
the engine Electronic Control Module (ECM) to make sure it is updated to the latest software level to prevent
possible vehicle downtime due to DPF overload.
AFC 12949 is applicable only to certain vehicles marked in Service Portal™ with AFC 12949.
PARTS INFORMATION
No parts are required for this AFC.
© 2013 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.
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SERVICE PROCEDURE
WARNING: Park vehicle on hard flat surface, turn the engine off, set the parking brake, and
block the wheels to prevent the vehicle from moving in both directions. Failure to do so may result
in property damage, personal injury, and / or death.
WARNING: If the vehicle must be raised, do not work under the vehicle supported only by
jacks. Jacks can slip or fall over, potentially resulting in property damage, personal injury, and / or
death.
WARNING: Always wear safe eye protection when performing vehicle maintenance. Failure
to do so may result in serious eye injury.
WARNING: Keep flames or sparks away from vehicle and do not smoke while servicing
the vehicle’s batteries. Batteries expel explosive gases. Failure to do so may result in property
damage, personal injury, and / or death.
WARNING: Remove the ground cable from the negative terminal of the battery box before
disconnecting any electrical components. Always connect the ground cable last. Failure to do so
may result in property damage, personal injury, and / or death.
WARNING: Always make sure engine has cooled before removing components. Failure to do
so may result in property damage, personal injury, and / or death.
1. Check to see if ECM has latest software by referring to vehicle calibration scorecard in Service Portal™
system. If calibration scorecard indicates that calibration is not current, engine must be reprogrammed.
2. Program ECM using NETS or AutoUpgrade. For instructions, see IK2600010 - NETS Programming and
Troubleshooting Guide. Use the Update to Latest Calibration programming option or follow IK2600082 AutoUpgrade Programming Instructions.
•
These articles contain general information about each reprogramming method and software, with
links to specific instructions for each.
NOTE: If AutoUpgrade functionality is not available, use NETS.
AFC–12949
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SERVICE PROCEDURE (CONT.)
3. If assistance is needed, contact Vehicle Programming by creating an iKNow case file or calling
1-800-336-4500, options 3, 1, 1.
LABOR INFORMATION
Operation number must appear on all claims.
Table 1. Labor Information
Description
Operation No.
A40-12949-1
Time
0.4 hrs
ECM Re-Flash
ADMINISTRATIVE PROCEDURE
Expense is to be charged to Warranty. Claims are to be submitted in the normal manner, making reference to
Authorized Field Change Number G-12949.
It is important that the coding be completed properly to assist in processing the warranty claim. Complete
instructions will be found in the Warranty Policy Manual, Section 7.1.8.
As with all claim submissions, items acquired locally must be submitted in the “Other Charges” tab. The cost
of any bulk items (such as a bag of cable tie straps, roll of wire, barrel of oil, or tube of silicone) should be
prorated for the cost of the individual pieces / amount used during each repair.
To ensure this important improvement is made in a timely manner, all claims for G-12949 activity must be
submitted by 31 January 2014 or within the normal warranty period for the vehicle, if after 31 January 2014.
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AFC–12949