TSB230020

Variable Geometry Turbocharger (VGT) Electronic Actuator Installation and Calibration ... Page 1 of 3
Technical Service Bulletin
Technical Service Bulletin:
Released Date: 03-Apr-2023
TSB230020
Variable Geometry Turbocharger (VGT) Electronic Actuator Installation and
Calibration Did Not Pass
Variable Geometry Turbocharger (VGT)
Electronic Actuator Installation and Calibration
Did Not Pass
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
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B6.7 CM2350 B121B
B6.7 CM2350 B135B
B6.7 CM2350 B136C
B6.7 CM2350 B148B Stop-Start Applications
B6.7 CM2350 B157C
B6.7 CM2450 B155B
ISB6.7 CM2350 B101
ISB6.7 CM2350 B103
ISB6.7 CM2350 B142
ISL9 CM2350 L101
ISL9 CM2350 L111
L9 CM2350 L116B
L9 CM2350 L119B
L9 CM2350 L120C
L9 CM2350 L123B
L9 CM2350 L129C
L9 CM2350 L133C
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230020.html
4/14/2023
Variable Geometry Turbocharger (VGT) Electronic Actuator Installation and Calibration ... Page 2 of 3
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L9 CM2450 L126B
X12 CM2350 X119B
X12 CM2450 X137B
X15 CM2350 X114B
X15 CM2350 X116B
X15 CM2450 X124B
X15 CM2450 X134B
Issue Summary
Variable geometry turbocharger (VGT) actuators have been improperly diagnosed as
faulty after incorrect install or calibration steps were performed.
Symptom:
• “Failed” message received on VGT Electronic Actuator Installation and Calibration
test in INSITE™ electronic service tool
• Active Fault Code 6432, 2449, or 1898
Root Causes:
• The VGT actuator was mounted to the turbocharger during the Install Actuator step.
• Improper alignment of turbocharger sector gear on the turbocharger while mounting
the VGT electronic actuator.
Resolution
• See corresponding Service Manual. Reference Procedure 010-134 in Section 10.
Reference video link below.
• If VGT electronic actuator Install or Calibrate steps do not pass, the installation
procedure must be started over from the beginning.
• The VGT electronic actuator must be removed, unplugged for 30 seconds, and the
turbocharger sector gear placed into the correct fully clockwise position.
• If unsuccessful after two attempts, contact 1-800-CUMMINS™ to escalate this
issue.
Note : http://tsb.cumminsvirtualcollege.com/230020_en.aspx
(http://tsb.cumminsvirtualcollege.com/230020_en.aspx)
Document History
Date
2023-2-6
Details
Module Created
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230020.html
4/14/2023
Variable Geometry Turbocharger (VGT) Electronic Actuator Installation and Calibration ... Page 3 of 3
Date
Details
2023-3-16
Added Fault Code 1898.
2023-3-31
Added video link.
Last Modified: 03-Apr-2023
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230020.html
4/14/2023