Specialized diesel ECM repair and exchange. In diesel since 2012; ECM-focused as an independent shop since 2018. Cummins, Cat, Paccar, Volvo/Mack and Detroit specialists; other brands accepted too.
Every ECM holds calibration data, fault history, and parameters specific to your truck. We repair and restore the unit while protecting what's stored on it - the data that keeps your truck running right.
Downtime costs money, so we keep turnaround tight and keep you posted while your unit's on the bench. You're handing us a part your truck can't run without, and we don't forget that.
I came up in diesel out of school in 2012 and went independent on ECMs in 2018. Hands-on experience with every type of failure we see at the bench — from simple connector issues to complex internal component failures.
This specialization matters. While general repair shops might see an ECM once a month, we work on them every day. This focused expertise translates to faster diagnosis, more accurate repairs, and better outcomes for our customers.
I can't leave a thing alone until I know how it works. Most nights you'll find me in the shop with an ECM on the bench, a logic analyzer hooked up, a couple monitors open — trying to understand exactly what's happening inside the box. Not because anybody's paying me to, but because once a question gets stuck in my head it doesn't leave.
That's how Northland got built. Years of taking things apart, comparing what different shops do, figuring out which signals matter and which are noise. By the time your ECM hits my bench, I've already spent hundreds of late nights on units just like it — looking for the failure pattern, the data structure, the thing the manufacturer assumes nobody will ever look at.
The customers who notice it are the ones who've been burned by a black-box repair somewhere else. They like that I'll actually tell them what I found.
Your calibration data is irreplaceable. We back up and preserve everything before we touch your ECM.
We tell you exactly what we find. If it's not repairable, we'll tell you - and offer alternatives.
We know downtime costs money. Most repairs completed in 3-5 business days.
2-year warranty on exchange units. 1-year warranty on repairs. We stand behind our work.
Message us and get a real response from someone who understands your problem.
We only do ECMs. This specialization means better results for you.
Cummins, Cat, Paccar, Volvo/Mack and Detroit are our day-to-day specialty. We accept other brands by request — send a photo of the ECM tag and we will tell you if it fits the bench.
Have questions? Send a message and we'll get back to you quickly.
Princeton, Minnesota
Serving customers nationwide
Drop-offs welcome. Start your repair online first — your confirmation includes the shop address and drop-off instructions, so we are ready when you arrive.
Start a repair to get going.
For fastest response, use the contact form. We typically respond within a few hours during business hours.
Drop-off and shipping address is provided when your repair or order is confirmed. Start your repair online and the address arrives with your confirmation.