PREVIEW SITE — customers still use ecmauthority.com

TRUCKS KEEP THE WORLD MOVING

DIESEL
ELECTRONICS.
DONE RIGHT.

Component-level ECM repair · Programming · Calibration
Bench testing · CPC4 Specialists · Cummins · Detroit
PACCAR · And more.

No-start, communication faults, or dead CPC? We diagnose and repair it fast.

Repair bench with a microscope over a diesel control module
Keep trucks moving

HOW IT WORKS

SIMPLE. FAST. EFFECTIVE.

  1. 1
    Start repair

    Submit your info online in minutes.

  2. 2
    Ship module

    Send us your ECM. We'll keep you updated.

  3. 3
    Diagnosis

    Full bench testing and fault analysis.

  4. 4
    Repair & program

    Component-level repair, programming, and testing.

  5. 5
    Same-day return

    Back on the road and working like it should.

Black heavy-duty truck and trailer under a stormy sky
“Expert electronics repair. Real-world results.”
— ECM AUTHORITY

SYSTEMS WE SERVICE

  • Cummins
  • Detroit
  • PACCAR
  • Caterpillar
  • Volvo
  • Mack
  • and more...

Customer reviews

Real notes from truck owners after their modules came home.

“Package received and truck started. You saved me BIG time. Thank you!”
Alhaji Timbo
2017 Freightliner Cascadia · CPC4
Sparks, NV · September 10, 2026
“Just wanted to let you know we are back up and running. I wanted to personally thank you for all your help with the ECM.”
Mr. Gamble
Cummins Celect / Celect Plus Repair
Hampton, VA · May 21, 2026