PACCAR MX13: Engine & Aftertreatment Diagnostics


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

Dedicated classes available- please call for details

COURSE DESCRIPTION: This course imparts theoretical knowledge and practical expertise in troubleshooting the Engine Control, Aftertreatment, and Fuel Systems specific to the PACCAR MX Engine family. Upon completion, technicians will be proficient with the PACCAR DAVIE diagnostic tool, comprehending fault codes, and executing troubleshooting and repair tasks associated with the PACCAR MX engine. Hotel & Lunch are Included.


  • Navigate PACCAR Davie4 Diagnostic Tool
  • PACCAR RMI and Eportal
  • Visual and Read Functions
  • Write Functions
  • Fault Code Guidance
  • Aftertreatment System
  • Fuel System
  • Electronic Control System
  • Skills Assessment
  • For a detailed course syllabus please contact us


In this PACCAR MX13 training class, 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 PACCAR MX13 Engine family. Hotel & Lunch are Included.


After completing this class, the Technician will be able to demonstrate the use of the PACCAR DAVIE diagnostic tool, RMI, Eportal, fault codes, troubleshooting and repair procedures for the Aftertreatment, Sensors, Electronic Controls and other repairs associated with the PACCAR MX 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