NHTSA ID Number: 10172439
Manufacturer Communication Number: C2119
TSB/Document Date: 2020-03-16
Summary
This field action authorizes certified repair locations to upfit certain ISB
CM2350 engines with an improved SCR Catalyst and to update the Engine Control Module (ECM) to the latest calibration revision. For MY2013 thru MY2014 engines that qualify for a new SCR Catalyst, a new wiring harness connector plug and a calibration update will be required.
DT90173
DT90383
CPL4784
DT90014
DT90354
CPL4782
DT90081
DT90356
CPL4782
DT90078
DT90444
CPL4784
DT90079
DT90448
CPL4786
DT90080
DT90446
CPL4784
ISL9 CM2350 L101 ECM Base Calibrations and CPLs
Existing ECM Base Code
New ECM Base Code
New CPL
EB90001
EB90192
CPL4779
EB90002
EB90193
CPL4779
EB90031
EB90194
CPL4779
EB90042
EB90195
CPL4779
EB90023
EB90196
CPL4779
EB90024
EB90197
CPL4779
EB90032
EB90198
CPL4779
EB90043
EB90199
CPL4779
EB90051
EB90207
CPL4779
EB90005
EB90203
CPL4779
EB90006
EB90204
CPL4779
EB90033
EB90205
CPL4779
EB90044
EB90206
CPL4779
EB90007
EB90213
CPL4780
EB90008
EB90214
CPL4780
EB90034
EB90215
CPL4780
EB90045
EB90216
CPL4780
EB90010
EB90221
CPL4781
EB90009
EB90220
CPL4781
EB90052
EB90218
CPL4781
EB90014
EB90232
CPL4781
EB90013
EB90231
CPL4781
EB90025
EB90200
CPL4779
EB90026
EB90201
CPL4779
EB90035
EB90239
CPL4779
EB90046
EB90240
CPL4779
EB90015
EB90209
CPL4780
EB90016
EB90210
CPL4780
EB90036
EB90211
CPL4780
EB90047
EB90212
CPL4780
EB90027
EB90222
CPL4780
EB90028
EB90223
CPL4780
EB90037
EB90224
CPL4780
EB90050
EB90225
CPL4780
EB90017
EB90227
CPL4780
EB90018
EB90228
CPL4780
EB90038
EB90229
CPL4780
EB90048
EB90230
CPL4780
EB90019
EB90233
CPL4780
EB90020
EB90234
CPL4780
EB90039
EB90235
CPL4780
EB90021
EB90237
CPL4780
EB90022
EB90238
CPL4780
EB90029
EB90241
CPL4779
EB90030
EB90242
CPL4779
EB90041
EB90243
CPL4779
EB90049
EB90202
CPL4779
EB90149
EB90217
CPL4780
EB90150
EB90226
CPL4780
EB90003
EB90208
CPL4779
EB90012
EB90219
CPL4781
Service Instruction
Aftertreatment Ammonia (NH3) Sensor Wiring Harness Plug and Fir Tree
Installation
Product
x
x
ISB6.7 CM2350
ISL9 CM2350
The purpose of this document is to guide the user through the steps involved in plugging off the NH3 sensor
wiring harness electrical connector and mounting to the harness connector to the sensor table on the SCR
(Selective Catalyst Reduction).
Parts Required
The material required to plug and mount Ammonia Sensor Wiring Harness is provided in Table 1. This is the
only item approved for this procedure.
Table (1.) Required Parts
Part Description
Kit, Electrical Connector Plug
(FIR Tree and Connector)
Part Number
5506866
Personal Protection Equipment (PPE)
x Completing a Job Safety Assessment (JSA) prior to performing work helps identify job safety hazards
and prevent incidents.
x To reduce the possibility of personal injury, personal protective equipment (PPE) must be utilized.
Reference General Safety Instructions Procedure 204-006 in Section I of the corresponding Service
Manual.
Installation Tools
No special service tools are required to install Ammonia Sensor Harness Wiring Plug.
WARNING
Wait for the Aftertreatment system to cool down before working on the hot exhaust or exhaust components.
Failure to do so could result in personal injury.
Preparation Steps:
1. Refer to NH3 sensor and module service
procedures to remove NH3 Module from sensor
table, Aftertreatment Selective Catalytic
Reduction (SCR) Intermediate NH3 Sensor,
Procedure 019-479.
SCR Overview
Figure 1
Installation:
1. Install Ammonia Sensor Harness Plug into open
wiring harness connector and attach the FIR
Tree and zip tie to the outer rim of the plug to
match the side view in Figure 2.
NOTE: Ensure the zip tie’s self-locking mechanism is
oriented to a corner. This will guarantee its secured
and properly placed.
Side View
Top View
Plug and FIR Tree Installation
Figure 2
2. Insert FIR Tree into NH3 Module mounting
location as shown in Figure 3.
3. Ensure the excess zip tie material has been
removed before installation of the heat shield.
Harness Mounting Location
Figure 3
Finishing Steps
2. Refer to service procedures to install the heat shield, Heat Shield Procedure 011-032.
C2119
For this Field Action, ensure to correctly capture “C2119” in the
Campaign Number for the Proof of Correction form
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Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
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TSB/Document ID: C2119
Replacement Service Bulletin Number:
MFR Communication Date: 2020-02-21
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM:WIRING
MFR Component System:
MFR Component Subsystem:
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