TSB150006-050120

Leaking Diesel Exhaust Fluid (DEF) from the Aftertreatment DEF Dosing Unit Electrical... Page 1 of 4
Technical Service Bulletin
Technical Service Bulletin:
Released Date: 01-May-2018
TSB150006
Leaking Diesel Exhaust Fluid (DEF) from the Aftertreatment DEF Dosing Unit
Electrical Connector
Leaking Diesel Exhaust Fluid (DEF) from the
Aftertreatment DEF Dosing Unit Electrical
Connector
Core Issue
Product affected:
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B6.7 CM2350 B136C
ISB/ISD4.5 CM2150 B119
ISB/ISD6.7 CM2150 B120
ISB4.5 CM2350 B104
ISB6.7 CM2250
ISB6.7 CM2350 B101
ISB6.7 CM2350 B103
ISC8.3 CM2250
ISF2.8 CM2220
ISF2.8 CM2220 AN
ISF2.8 CM2220 IAN
ISF3.8 CM2220
ISF3.8 CM2220 AN
ISF2.8 CM2220 F129
ISF3.8 CM2220 IAN
ISL8.9 CM2150 L110
ISL9 CM2250
ISL9 CM2350 L101
ISL9 CM2350 L111
ISX12 CM2350 X102
ISX12/ISX11.9 CM2250
ISX15 CM2250
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6/1/2018
Leaking Diesel Exhaust Fluid (DEF) from the Aftertreatment DEF Dosing Unit Electrical... Page 2 of 4
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ISX15 CM2350 X101
L9 CM2350 L119B
L9 CM2350 L120C
L9 CM2350 L123B
QSB4.5 CM2350 B106
QSB6.7 CM2350 B105
QSB6.7 CM2350 B130
QSF CM2350 F107
QSF3.8 CM2350 F118
QSL9 CM2350 L102
QSL9 CM2350 L118
QSX15 CM2350 X105
QSX15 CM2350 X106
Symptom:
• Fault codes including but not limited to: 1682, 1696, 2976, 3558, 3559, 3572, 3574,
3577, 3596, and 4251.
Root Cause:
• Diesel exhaust fluid (DEF) can freeze, causing the aftertreatment DEF dosing unit
electrical connector to crack and leak DEF.
Confirmation
• Use the appropriate fault code troubleshooting tree to confirm and troubleshoot the
corresponding fault codes. See the corresponding Fault Code Troubleshooting
Manual.
• During the troubleshooting process, look for evidence of leaking DEF around the
aftertreatment DEF dosing unit electrical connector. See Figure 1 below.
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2015/tsb150006.html
6/1/2018
Leaking Diesel Exhaust Fluid (DEF) from the Aftertreatment DEF Dosing Unit Electrical... Page 3 of 4
Figure 1
Resolution
If DEF is found leaking around the aftertreatment DEF dosing unit electrical connector,
replace the aftertreatment DEF dosing unit. See the corresponding Service Manual.
Reference Procedure 011-058 in Section 11.
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
2015-1-28
Details
Module Created
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6/1/2018
Leaking Diesel Exhaust Fluid (DEF) from the Aftertreatment DEF Dosing Unit Electrical... Page 4 of 4
Date
Details
2016-7-22
Combined contents of TSB140048.
2018-4-25
Added engines to Product Affected section.
Last Modified: 01-May-2018
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2015/tsb150006.html
6/1/2018