TSB100031-092116

Malfunction Indicator Lamp (MIL) Illuminated with No Fault Codes Present
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Technical Service Bulletin Number
TSB100031
Technical Service Bulletin
Subject
Malfunction Indicator Lamp (MIL) Illuminated with No Fault Codes Present
Original Early Field Notification Number: e10031.
Issue
This document describes an issue where the malfunction indicator lamp (MIL) will be
illuminated with no fault codes present in the engine control module (ECM).
Verification
Product Affected
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ISB6.7 CM2350 B101
B6.7 CM2350 B121B
ISL9 CM2350 L101
ISX15 CM2250
ISX15 CM2350 X101
ISX12 CM2350 X102
The MIL will be illuminated with no fault codes present in the ECM.
The use of the “Reset Inactive Faults” command in INSITE™ electronic service tool does not
extinguish the MIL when it clears the fault codes from the ECM.
Do not use the “Reset Inactive Faults” command in INSITE™ on On-Board Diagnostics
products.
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2010/tsb100031.html
10/3/2016
Malfunction Indicator Lamp (MIL) Illuminated with No Fault Codes Present
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Resolution
If the MIL is illuminated with no fault codes present in the ECM, a fault code will need to be
created in order to use the “Reset All Faults” feature in INSITE™ electronic service tool.
Follow these instructions:
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Turn the keyswitch to the OFF position.
Disconnect the wiring harness from the coolant temperature sensor.
Turn the keyswitch to the ON position.
Use INSITE™ electronic service tool to monitor fault codes to see Fault Code 144 go
active.
Reconnect the wiring harness to the coolant temperature sensor.
Use INSITE™ electronic service tool to monitor fault codes to see Fault Code 144 go
inactive
Use INSITE™ electronic service tool to perform the “Reset All Faults” function to clear
the inactive Fault Code 144 and to extinguish the MIL.
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
2013-2-14
2016-9-21
Details
Adding 2013 Product to existing TSB.
Added B6.7 CM2350 B121B.
Last Modified: 23-Sep-2016
Copyright © 2000-2010 Cummins Inc. All rights reserved.
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2010/tsb100031.html
10/3/2016