TSB190187-111820

11/21/2019
Vehicle Performance Issues with Eaton AMT
Technical Service Bulletin
Technical Service Bulletin: TSB190187
Released Date: 18-Nov-2019
Vehicle Performance Issues with Eaton AMT
Vehicle Performance Issues with Eaton AMT
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.
Contents
Product Affected
ISX12N CM2380 X120B
Issue
Symptom:
Intermittent poor acceleration.
Harsh or extended shifts.
Engine lugging to near stall condition during launch.
Stuck in gear (Eaton fault code 74).
Poor low speed maneuverability in “R.”
Misfire faults during launch and during shifts.
Root Cause:
The incorrect transmission shift calibration is selected in the Transmission Control Unit (TCU).
Verification
Reference Eaton TAIB-0879.
Resolution
Confirm the Transmission Control Unit has the latest software and is properly configured for
ISX12N. Refer to Eaton TAIB-0879.
Customer Communication
During service events, it is possible for technicians to select shift schedules and transmission
settings that are not intended for use in vehicles equipped with ISX12N engines. Selecting the
incorrect shift schedule or improperly configuring the transmission can have negative effects on
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11/21/2019
Vehicle Performance Issues with Eaton AMT
engine and vehicle performance.
Document History
Date
2019-11-4
Details
Module Created
Last Modified: 18-Nov-2019
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