Maximize uptime and prevent downtime
Get access to detailed fault code information, monitor real-time live data, perform bi-directional commands like initiating forced DPF regeneration and track command and fault code history, all from your mobile device.
500+ Google Reviews
Customers love OTR Diagnostics — read why 98% of OTR customers would recommend OTR Diagnostics.
I would recommend this diagnosis tool to any truck driver out there.
— K O311 - Google Review
One of the best apps to keep track of your aftertreatment.
— Michael Erb - Google Review
In my opinion this is a must have for any small operation
— Manny Choate - Google Review
I recommend every truck owner / fleet / mechanic should have this device
— Bill Chohan - Google Review
Modern diagnostic tool for modern trucks
OTR Diagnostics lets you take matters in your hands to diagnose issues yourself.
- Saving you a trip to the repair shop
- Avoiding unnecessary dealer visits
- Staying off the side of the road
Quickly spot any issues with your engine and get them fixed right away.
With all the detailed info you get from our diagnostics, you can make smarter decisions about how to manage your repair.
No matter what type of engine your truck has—like Cummins, Paccar MX, Detroit Diesel, Volvo or Mack. We work with all of them.
View active and inactive fault codes with detailed descriptions providing troubleshooting steps, possible fixes, symptoms and much more.
Live data keeps you informed about your vehicle at any moment by monitoring engine parameters in real-time.
Forced DPF regen, reset emission derates, reset EGR derates and reset fault codes now from your mobile device
Know how often and when a fault code was triggered or how long forced DPF regen lasts
No more guess work on fault codes
For owner-operators in the trucking industry, understanding and managing fault codes through OTR Diagnostics can significantly enhance operational efficiency and reduce downtime.
Clear explanations
Get detailed descriptions of each fault code, helping you understand exactly what's wrong with your truck.
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.
Spot issues before they happen
Live data feature enables continuous monitoring of your truck’s performance, providing immediate insights into its operational status.
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.
Dealer level commands without the cost
Effortlessly reset active and inactive fault codes, manage your aftertreatment system, derates, and soot levels, and perform forced DPF and SCR regens on-demand.
Immediate response tools
Perform critical commands like resetting aftertreatment derates and initiating forced DPF regen yourself.
Reduce downtime
Quickly resolve issues that could sideline your truck, keeping your schedule intact and your truck moving.
Keep your truck running longer with fault and command history
Access to fault and command history is essential for maintaining a reliable and efficient truck, offering critical insights into the operational history and health of the truck.
Historical insights
Access a complete history of faults and commands used on your truck. This record is crucial for diagnosing recurring issues and planning future maintenance.
Better resale value
Maintain a well-documented history of your truck’s health and repairs, which can enhance its resale value.
OTR Diagnostics coverage
Are you driving a truck with a Cummins, Paccar MX, Detroit Diesel, Volvo, or Mack engine? We work with all of them!
Nexiq Blue-Link 2 hardware
- Unlock the full potential of your truck's diagnostics system with 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.