TSB160031-092920

Diesel Exhaust Fluid (DEF) Quality Fault Codes on International® Truck and IC™ Bus ...
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Technical Service Bulletin
Technical Service Bulletin:
Released Date: 02-Oct-2017
TSB160031
Diesel Exhaust Fluid (DEF) Quality Fault Codes on International® Truck and
IC™ Bus Chassis
Diesel Exhaust Fluid (DEF) Quality Fault
Codes on International® Truck and IC™ Bus
Chassis
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.
Information Only - OEM Related Matter Not Covered By Cummins® - Contact Appropriate
OEM Dealer or OEM Representative For Additional Information
Contents
Product Affected
International® Durastar, Workstar, and IC™ Buses equipped with:
• B6.7 CM2350 B121B
• ISB6.7 CM2350 B101
International® DuraStar, WorkStar, and IC Buses equipped with:
• ISL9 CM2350 L101
• L9 CM2350 L116B
International® ProStar, 9900, Lonestar, Paystar, HX Series, and LT Series equipped
with:
• ISX15 CM2350 X101
• X15 CM2350 X114B
• X15 CM2350 X116B
Issue
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Symptom:
• Fault Code(s) 1715 (SPN 3364 FMI 11), 4277 (SPN 3364 FMI 10), 3867 (SPN 3364
FMI 18), 4842 (SPN 3364 FMI 15), 6765 (SPN 3521 FMI 16), 6766 (SPN 3521 FMI
18), 6767 (SPN 3521 FMI 31)
Root Cause:
• When the diesel exhaust fluid (DEF) level in the DEF tank is low, the DEF quality
sensor is more susceptible to calculating the DEF concentration incorrectly. The
miscalculation is the result of air bubbles created by the low level of DEF moving in
the DEF tank.
Verification
If the following conditions are met:
• International® ProStar, 9900, Lonestar, Paystar, HX Series, LT Series, Durastar,
Workstar, or IC™ Bus
• Fault Code(s) 1715 (SPN 3364 FMI 11), 4277 (SPN 3364 FMI 10), 3867 (SPN 3364
FMI 18), 4842 (SPN 3364 FMI 15), 6765 (SPN 3521 FMI 16), 6766 (SPN 3521 FMI
18), 6767 (SPN 3521 FMI 31)
See Resolution section below for fault code being diagnosed.
Resolution
• Reference Navistar Fault Code Action Plan (FCAP) for individual fault codes.
• Fault Code 1715 (SPN 3364 FMI 11):
◦ Navistar has released an update to aftertreatment DEF quality sensor firmware
to reduce occurrences of Fault Code 1715.
◦ Navistar released Authorized Field Change (AFC) 16904 and 16905 to
authorize update of aftertreatment DEF quality sensor firmware.
◦ Authorized Field Change (AFC) must be completed by an authorized
International® Truck or Bus Dealer. Reference Manage Repair tab within
Navistar Service Portal to verify eligibility to perform update.
• Fault Code(s) 4277 (SPN 3364 FMI 10), 3867 (SPN 3364 FMI 18), 4842 (SPN 3364
FMI 15), 6765 (SPN 3521 FMI 16), 6766 (SPN 3521 FMI 18), 6767 (SPN 3521 FMI
31)
◦ Navistar has released supplemental diagnostic and service information for
Diesel Exhaust Fluid (DEF) Quality Sensor via iKnow Article IK0700096
◦ Diagnostic Steps section in iKnow article will guide user through a series of
steps to determine cause of fault code.
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◦ iKnow article must be followed and completed by an authorized International®
Truck or Bus Dealer.
Document History
Date
Details
2016-3-21
Module Created
2016-10-17
Added ISL9 CM2350 L101. Modified Resolution section.
2017-9-29
Added more Fault Codes and products.
Last Modified: 02-Oct-2017
https://qsol.cummins.com/qs3/pubsys2/xml/en/tsb/2016/tsb160031.html
10/26/2017