TSB140048-042914

Leaking Diesel Exhaust Fluid From the Aftertreatment Diesel Exhaust Fluid Dosing Unit ... Page 1 of 3
Technical Service
Bulletin Number
TSB140048
Revision Level
Date
Group Number
Technical Service Bulletin
Subject
Leaking Diesel Exhaust Fluid From the Aftertreatment Diesel Exhaust Fluid Dosing Unit
Electrical Connector
Issue
Multiple electrical diagnostic fault codes can be set due to diesel exhaust fluid (DEF) leaking
around the aftertreatment diesel exhaust fluid dosing unit electrical connector, caused by
internal cracking due to freezing DEF. List of possible fault codes includes, but is not limited
to; 1682, 1696, 2976, 3558, 3559, 3572, 3574, 3577, 3596, and 4251.
The following engines could be affected:
z
z
z
z
z
ISB6.7
ISC
ISL9
ISX12
ISX15
Verification
During the troubleshooting process, leaking DEF around the aftertreatment diesel exhaust fluid
dosing unit electrical connector is discovered. Figure 1 shows a typical leak.
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2014/tsb140048.html
6/2/2014
Leaking Diesel Exhaust Fluid From the Aftertreatment Diesel Exhaust Fluid Dosing Unit ... Page 2 of 3
Figure 1
Resolution
Replace the aftertreatment diesel exhaust fluid dosing unit. Refer to Procedure 011-058.
Update the aftertreatment diesel exhaust fluid controller software phase. Reference
Cummins® Aftertreatment Diesel Exhaust Fluid Controller Software Phases, Service Bulletin
4310705.
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.
Document History
Date
2014-4-18
2014-4-29
Details
Module Created
outfile
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2014/tsb140048.html
6/2/2014
Leaking Diesel Exhaust Fluid From the Aftertreatment Diesel Exhaust Fluid Dosing Unit ... Page 3 of 3
Last Modified: 05-May-2014
Copyright © 2000-2010 Cummins Inc. All rights reserved.
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2014/tsb140048.html
6/2/2014