NHTSA ID Number: 10115378
Manufacturer Communication Number: IK1201226
TSB/Document Date: 2017-08-16
Summary
SCR Aftertreatment Wiring Repair Plan
DEF Dosing Unit Heater Temperature erratic, intermittent, or incorrect
609
19
ACM not detected on J1939
Page 2 of 5
Customer Observations or Concerns:
• MIL
• AWL
• Frequent or improper regens
SPECIAL TOOL(s) / SOFTWARE
Tool Description
Tool Number
Comments
DVOM
DEF Suction Line Heater Breakout Harness
1804501
DEF Return Line Heater Breakout Harness
1804601
DEF Pressure Line Heater Breakout Harness
1804701
20 Way DEF Harness Interconnect Breakout Harness
1805001
DEF Tank Level and Temperature Sensor Breakout Harness
1812401
12 Way SCR Jumper Breakout Harness
1825001
12 Way AFT Interconnect Breakout Harness
1850001
NOx In Sensor Module and SCR Temperature Sensor Module Breakout
Harness
18-648-01
NOx Out and DOC/DPF Temperature Sensor Module Breakout Harness
1864901
Ammonia (NH3) Sensor Breakout Harness
18-650-01
Ammonia (NH3) Sensor Module Breakout Harness
18-801-01
DEF Supply Module 12 Way Breakout Harness
1890901
SCR ACM Breakout Harness
1853701
Service Parts Information
Parts are color coded to show relation to the wiring schematic below:
Truck Model
Harness Type
Kit Description
Part
Number
ProStar 122/113/TranStar ICT +
60 Way
Aftertreatment
Aftertreatment Harness
3991597C93
ProStar ICT+ 18-Way
Aftertreatment
Aftertreatment Harness
3991597C93
WorkStar ICT + 18 Way
Aftertreatment
4021579C91
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IK1201226 N13 SCR Aftertreatment Wiring Repair Plan
Page 3 of 5
AT Harness with Horizontal_Vertical
Exhaust
WorkStar ICT + 18 Way
Aftertreatment
AT Harness with Horizontal_Horizontal
Exhaust
4025546C91
WorkStar ICT + 18 Way
Aftertreatment
AT Harness with Vertical_Vertical
Exhaust
4026930C91
PayStar ICT+ ICT 18-Way
Aftertreatment
Aftertreatment Harness
4021169C91
WorkStar ICT + 18 Way
DEF Harness
DEF- Under Cab Harness
4021604C92
WorkStar ICT + 18 Way
DEF Harness
DEF- Back Of Cab Harness
4021615C92
WorkStar ICT + 18 Way
DEF Harness
DEF- Under Cab Vertical_Vertical
Harness
4028876C92
ProStar 122/113/TranStar ICT +
60 Way
DEF Harness
DEF 16 and 23 Gal Harness
3998517C92
PayStar ICT+ ICT 18-Way
DEF Harness
DEF- Under Cab Harness
4021168C94
PayStar ICT+ ICT 18-Way
DEF Harness
DEF- Back Of Cab Harness
4024489C93
PayStar ICT+ ICT 18-Way
DEF Harness
DEF- Under Cab Vertical_Vertical
Harness
4028040C93
ProStar/TranStar
Chassis Harness Chassis Harness Overlay
3999180F94
All Models
DOC/DPF
Jumper
Cummins
Part
5293749
All Models
SCR Jumper
Cummins Part
5301985
Diagnostic Step(s)
The following diagnostic steps should be followed for intermittent or return problems with SCR / Aftertreatment faults and with components that pass
all tests per the manuals and Fault Code Action Plan.
Action
Decision
DIAGNOSTIC: Verify there is an active/inactive code with
ServiceMaxx.
Yes: Continue to Step 2
Are there codes present?
No: Release the Unit
Action
Decision
DIAGNOSTIC: Check the affected component depending on
what codes you have present. Use the correct Fault Code
Action Plan to diagnose the code.
Yes: Continue to Step 3
#1
#2
Does the code still exist after following the Fault Code Action
No: Release the Unit
Plan?
#3
Action
Decision
DIAGNOSTIC: Perform a basic harness check. Look for
pinches, crimps, rubs in the harness that could affect the
wiring.
Yes: Repair the harness as needed.
Were any issues found in the harness?
No: Replace the affected harness that relates to the codes
present on ServiceMaxx. Use the Harness Identifier below to
make sure you are ordering the correct harness.
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IK1201226 N13 SCR Aftertreatment Wiring Repair Plan
Page 4 of 5
Figure #1: Harness Identifier
Item 1: Blue Section- Aftertreatment Harness
Item 2: Green Section- Chassis Harness (Overlay available, complete harness is built to VIN and takes 4-6 weeks to get.)
Item 3: Red Section- DEF Harness
Repair Step(s)
Replace the affected harness per the service manual
Warranty Information
Warranty Claim Coding:
Group: 18100
Noun: 906
Standard Repair Time(s):
Claim under standard T-time using the appropriate SRT's below to
account for time on this portion of the repair. All punch times must
be submitted with the claim.
Description
SRT Link
Wiring Repair, Perform
A082001A
Hours
0.2
Requirement
Requires Documented Punch Times
Wiring Repair, Perform
A08-2002A
0.4
Requires Documented Punch Times
Wiring Repair, Perform
A08-2003A
0.6
Requires Documented Punch Times
Wiring Repair, Perform
A08-2004A
0.8
Requires Documented Punch Times
Wiring Repair, Perform
A08-2005A
1.0
Requires Documented Punch Times
Special Requirement(s): Not Applicable
Other Resources
Master Service Information Site
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IK1201226 N13 SCR Aftertreatment Wiring Repair Plan
Page 5 of 5
Harness Identifier Schematic
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Copyright © 2015 Navistar, Inc.
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TSB/Document ID: IK1201226
Replacement Service Bulletin Number:
MFR Communication Date: 2015-05-20
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT:ELECTRICAL
MFR Component System:
MFR Component Subsystem:
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