Works with many different engines

No matter what type of engine your fleet has—like Cummins, Paccar MX, Detroit Diesel, Volvo or Mack its covered.

Make better choices for your trucks

With all the detailed info you get from our diagnostics, you can make smarter decisions about how to manage your repair.

Find and fix engine problems fast

Quickly spot any issues with your engine and get them fixed right away.

Modern diagnostic tool for modern trucks

OTR Diagnostics lets you take matters in your hands to diagnose issues with ease.

  • Saving you a trip to the repair shop
  • Avoiding unnecessary dealer visits
  • Staying off the side of the road
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Know your fault codes

View active and inactive fault codes with detailed descriptions providing troubleshooting steps, possible fixes, symptoms and much more

Monitor vehicle parameters

Live data keeps you informed about your vehicles at any moment by monitoring engine parameters in real-time.

Send bi-directional commands

Forced DPF regen, reset emission derates, reset EGR derates and reset fault codes now from a mobile device

History of fault codes and commands

Know how often and when a fault code was triggered or how long forced DPF regen lasts

Detailed fault code information

Unlock detailed explanations of each fault code.

Understand not just the code, but the specific issue and suggested fixes.

Learn more about fault codes

Clear explanations

Get detailed descriptions of each fault code, helping you understand exactly what's wrong with your trucks.

Avoid unnecessary repairs

By knowing precisely what each code means, you can avoid costly and unnecessary trips to the mechanic, focusing only on the repairs that matter.

Live data monitoring

Live data allows you to see and address issues as they happen, preventing minor problems from becoming major breakdowns. With real-time data, you can diagnose issues with greater accuracy. No more guesswork.

Learn more about live data

Monitor performance with live data

Track your truck’s vital systems in real-time. This allows you to spot potential problems as they develop, not just after they've caused a breakdown.

Optimize fuel efficiency

Use real-time data to tweak your driving habits and improve fuel efficiency, reducing operational costs.

Bi-directional commands

Effortlessly reset active and inactive fault codes, manage your aftertreatment system, derates, soot levels, and perform forced DPF or SCR regens on-demand.

This comprehensive suite ensures your fleet operates efficiently, enhancing reliability and keeping your trucks on the road.

Learn more about bi-directional commands

Immediate response tools

Perform critical commands like reset fault codes resetting aftertreatment derates, initiating forced DPF regen, and more from a mobile device.

Reduce downtime

Quickly resolve issues that could sideline your trucks, keeping your schedule intact and your trucks moving.

View fault and command history

All fault codes are securely stored in the cloud, giving you access anytime and anywhere. This is helpful for tracking down recurring issues and analyzing intermittent 'ghost codes' that come and go.

Learn more about history

Historical insights

Access a complete history of faults and commands used on your trucks.

Better resale value

Maintain a well-documented history of each truck’s health and repairs, which can enhance its resale value.

OTR Diagnostics coverage

Supporting all the major diesel engines.

View all engines

Nexiq Blue-Link 2 hardware

  • Unlock the full potential of your truck's diagnostics system with the Nexiq Blue-Link 2 hardware.
  • Designed for seamless integration with the trucks we support, this device connects via Bluetooth, ensuring robust and reliable data transmission without the hassle of wires.
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How do I purchase to get started?

1. Purchase Your Package:

  • Select the quantity of vehicles and purchase the Professional Package to ensure you have everything you need.

2. Account Activation:

  • Check your email for an activation link. Use the same email address that you used for your purchase to activate your account.

3. Download the App:

  • Download the 'OTR Diagnostics' app from the Apple App Store or Google Play Store. Log in using the credentials you created during registration.

4. Need Help?

  • If you encounter any issues, feel free to reach out via email, chat, or call us at 586-799-4375.

Please note: Your OTR Diagnostics Subscription is linked to the email address used during the purchase process.

How does the subscription work?

Subscriptions are based on a 12-month auto-renew basis.

Does this app need to be online to be used?

OTR Diagnostics is bluetooth based and does require you to have Wi-fi or Cellular coverage for you to be able to use the app.

We do have an offline mode as a feature which does require you to have internet upon first login with the adapter connected for this to function.

It is recommended to use OTR Diagnostics with internet connected to ensure properly functionality.

Which platforms is OTR Diagnostics available for?

OTR Diagnostics works on iOS and Android mobile phones and tablets.

What does the limited lifetime warranty include?

Our OTR Diagnostics hardware is backed by a Limited Lifetime Warranty, which is a testament to our commitment to your satisfaction.

Warranty Coverage: Our Limited Lifetime Warranty covers material and manufacturing defects in our OTR Diagnostics hardware for as long as you maintain an active subscription to OTR Diagnostics.

We understand that your investment in our product is significant, and we want you to be confident that it will perform as designed.

For a complete understanding of our warranty terms and conditions, please refer to the terms and conditions.