TSB130113-111120

11/30/2020
Fault Code 4585 After Engine Control Module (ECM) Calibration Update
Technical Service Bulletin
Technical Service Bulletin: TSB130113
Released Date: 11-Nov-2020
Fault Code 4585 After Engine Control Module (ECM) Calibration Update
Fault Code 4585 After Engine Control Module (ECM) Calibration
Update
Core Issue
Product Affected
ISB CM2350 B101
ISL CM2350 L101
ISX12 CM2350 X102
ISX15 CM2350 X101
Symptom:
Fault Code 4585 coming active after engine control module (ECM) calibration or ECM calibration code change
Root Cause:
Mismatch between the ECM code and the aftertreatment SCR temperature sensor module
A population of engines do not have a compatible aftertreatment selective catalyst reduction (SCR) temperature sensor module.
Fault Code 4585 is a diagnostic that runs continuously for the first 50 hours of Engine Run Time to verify calibration and SCR
compatibility. If the unit does not have the compatible aftertreatment SCR temperature sensor module with the new calibration,
Fault Code 4585 could become active.
Confirmation
If Fault Code 4585 is active, ECM calibration code must be verified as compatible with the aftertreatment SCR catalyst installed.
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Fault Code 4585 After Engine Control Module (ECM) Calibration Update
For ISX12 and ISX15 engines, follow the instructions in SCR compatibility tool
For ISB and ISL engines, follow the instruction in TSB150105
Resolution
To clear the active Fault Code 4585, a new aftertreatment SCR temperature sensor module must be installed. See Table 1 below.
See corresponding Service Manual. Reference Procedure 019-449 in Section 19.
Service Parts Availability
Table 1, Service Parts
Part Description
Existing Part Number
Obsolete
Superseded
New Part Number
Sensor, Aftertreatment
SCR Temperature
4307100
No
No
4384811
Sensor Aftertreatment
SCR Temperature (24
V)
4307102
No
No
5461614
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
Details
2013-7-29
Module Created
2020-2-7
Updated root cause section.
2020-11-10
Updated Table 1 with new part number 5461614.
Last Modified: 11-Nov-2020
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Fault Code 4585 After Engine Control Module (ECM) Calibration Update
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