Cummins ISX15, X15: Engine & Aftertreatment Diagnostics


4 day Class (Tuesday-Friday) | Max Available seats: 12

Dedicated classes available- please call for details.

COURSE DESCRIPTION: This course offers theoretical and hands-on instruction for troubleshooting the Engine Control System, Aftertreatment System, and Fuel System. It covers the proper repair procedures for the Cummins ISX15 and X15. By the end, technicians will be proficient with QuickServe, Insite, and the various troubleshooting methods associated with these engines. Hotel and Lunch are included.



  • Navigate QuickServe Online
  • Navigate Cummins Insite
  • Visual and Read Functions
  • Write Functions
  • Fault Code Guidance
  • Aftertreatment System
  • Electronic Control Systems
  • Fuel System
  • Skills Assessment
  • For a detailed Course Syllabus please contact us
  • Hotel and lunch each day


In this Cummins engine training class, on the ISX15 and X15, students will be instructed in theory and hands-on operation for troubleshooting of the Engine Control Systems, Aftertreatment Systems, Fuel Systems and repair procedures on the Cummins Engine EPA 2010-2017 ISX15 2250 and 2350 and X15 Cummins Engine family. Additionally, Hotel and Lunch are included.


After completing the Cummins engine training class, on the ISX15 and X15 engine, technicians will demonstrate the use of QuickServe, Insite, and troubleshooting procedures for the Aftertreatment, Fuel and Electronic Controls Systems associated with the Cumming ISX15 and X15 engine.

LOCATION: ETT Training Center

TRITECH Expert Technician Training Center is in New Braunfels, TX, while the San Antonio, TX airport (SAT) is 35.5 miles from training center and the Austin, TX airport (AUS) is 47 miles from ETT training center. Please plan on arriving the Monday prior to class starting on Tuesday and departing Fridays 3:00pm or after.


Fairfield Inn & Suites by Marriott

1465 I-35 New Braunfels, TX 78130

What to do while in town?

New Braunfels is Centrally located between Austin and San Antonio and is best known for the Comal and Guadalupe Rivers, great food, live music and the nearby Gruene Historic District.


Technicians must bring appropriate Personal Protective Equipment (PPE), safety shoes, eye protection and ear protection. All safety procedures and warnings must be followed. High pressure fuel and temperature warning. Exposure to rotating components. Always watch out for each other and if see any liquid spills, please clean up immediately.


Please complete 1 Enrollment Form per enrollee to reserve a slot in an upcoming Cummins Engine Training class. Enrollment Forms can be requested by email at or by phone at 830-743-9720. Registrations will be accepted up to the start of class and are subject to available seats. See Cancellation Policy