ECM AuthorityDIESEL ELECTRONICS SPECIALISTS

HOW IT WORKS

DEAD MODULE
BACK ON THE ROAD.

Start your repair from your phone in about two minutes. We handle the bench work, the programming, and the shipping — and you can watch every step.

Start a repair nowCall 855-414-1088
  1. 01Start
  2. 02Ship
  3. 03Diagnose
  4. 04Repair
  5. 05Track
  6. 06Return

THE PROCESS

ONE ORDER. ZERO GUESSWORK.

Here's exactly what happens from the moment you tap Start to the moment your truck fires back up.

  1. 01

    Start your repair

    Answer a few big-button questions

    Tap Start a repair and we walk you through it one question at a time — your engine, your module, your VIN. Not sure what you have? Punch in the VIN and we'll look it up.

    • About 2 minutes
    • Sign in with Google
    • Built for your phone
    The ECM Authority repair wizard on a phone asking “What engine is in your truck?” with Detroit, Cummins, PACCAR, and Caterpillar options
  2. 02

    Send it in

    Ship your module to our lab

    Pack it up and send it our way. Drop your tracking number into your dashboard and we'll watch for it to hit the dock — no lost-in-the-mail guessing.

    • Inbound tracking
    • Nationwide
    Black semi truck on an open highway under storm clouds
  3. 03

    Bench diagnosis

    Real bench work, not guesswork

    Your module goes on the bench for component-level fault analysis on lab equipment. We find what actually failed and fix that — no swap-and-hope.

    • Component-level
    • Lab-grade equipment
    Control module wired into lab test equipment on the repair bench
  4. 04

    Repair & program

    Fixed and programmed to your truck

    Once the failed circuitry is repaired, we program to your VIN and specs where your application needs it — so it's plug and play when it goes back in, not a new round of comm faults.

    • VIN programmed
    • Plug & play
    ECM programming menu with VIN programming and calibration options beside a Detroit Diesel control module
  5. 05

    Stay in the loop

    Watch every step from your dashboard

    Live status from Submitted to Shipped, notes from the bench, and email updates along the way. You'll never wonder whether your module is “somewhere in the pile.”

    • Live status
    • Email updates
    • Notes from the tech
    ecmauthority.com/dashboard
    Repair order card showing In Repair status, a seven-step progress bar from Submitted through Shipped, and the latest message
  6. 06

    Back on the road

    Tested, shipped, and headed home

    Every module is bench tested before it leaves, packed like the critical part it is, and tracked all the way back to you. CPC4 repairs are often same-day.

    • Bench tested
    • Tracked shipping
    • Lifetime CPC warranty
    Semi truck with headlights on driving at night

WHY ECM AUTHORITY

WE KNOW THE WHOLE TRUCK.

  • Built for heavy-duty reality

    Freightliner CPC, Cummins, Detroit, PACCAR, CAT — we live in the modules that keep Class 8 trucks moving.

  • Speed where it counts

    CPC4 work is often same-day. Every other service shows its real turnaround up front — honest expectations, not vague promises.

  • A warranty you can actually read

    CPC repairs carry a Lifetime Warranty for the original purchaser, with terms and claim steps published in full.

    Read the warranty

  • Real people on the phone

    Oddball module? Not sure what you've got? Call and talk to the people who actually do the work.

    Call 855-414-1088

SYSTEMS WE SERVICE

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

DOWN A TRUCK?
LET'S GET IT MOVING.

Whether you're broke down today or lining up a spare before peak season, it starts the same way: two minutes on your phone.

Start a repair nowCall 855-414-1088

Repair shop or fleet? Visit the repair partner portal