OTR Diagnostics
with OTR Link 2
Read and reset OEM fault codes — same as the dealer (P-Codes on Volvo, Mack, Paccar MX)
Run forced regens & bi-directional commands – Take control of emissions issues.
Avoid unexpected downtime – Catch problems early with live data and fault history tracking.
What's included?
Hardware: This is the tool itself and adapter, supporting every engine we have coverage for including: Cummins, Paccar MX, Detroit Diesel, Volvo, Mack and more.
1st-year subscription: Included in the package. This provides access to our app, software, all updates, and new features at no additional charge
(auto-renews yearly, starting the 2nd year for $399, cancel anytime).
60-Day | 100% Money-Back Guarantee
Limited Lifetime Warranty
Built and developed in the USA
Questions? Call us: (586) 799 - 4375
Fault codes
✔️ Get a 1:1 match what dealership software sees, including OEM P-Codes.
✔️ Unlock detailed explanations of each fault code.
✔️ Understand not just the code, but the specific issue and suggested fixes.
✔️ Empower yourself to perform your own repairs with guided diagnostics and easy-to-follow repair suggestions tailored to your truck's specific needs.
Live data
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.
Commands
Commands available for each engine below.
Cummins - X15, X12, ISX, ISC 8.3, ISL 9, ISB 6.7 & Paccar PX-6, PX-7, PX-8, PX-9 Engines
2008 - 2024 (Years covered)
- Reset faults
- Cummins fault codes
- Reset generic fault codes
- Reset aftertreatment
- Aftertreatment maintenance reset all
- Aftertreatment maintenance filter installation
- Forced DPF regen
- Aftertreatment diesel particulate filter regeneration
- SCR Performance Test
Volvo - D11, D13, D13TC, D16 Engines & Mack - MP7, MP8, MP8HE, MP10 Engines
2014-2024 (Years Covered)
- Reset fault codes
- Reset aftertreatment
- Reset soot level
- Forced DPF regen
- Forced SCR regen
- DEF crystal sublimation
Detroit Diesel - DD5, DD8, DD13, DD15, DD16 Engines
2008-2024 (Years Covered)
- Reset fault codes
- Reset aftertreatment
- Reset ash accumulator
- Reset SCR accumulator
- Forced DPF regen
- Forced SCR efficiency regen
Paccar MX-11, MX-13 Engines
2011 - 2017 (Years covered) - EPA10 /EPA13
- Reset fault codes
- Reset aftertreatment
- Reset EGR Derate
- Reset 5mph DEF derate
- Install a cleaned DPF
- Install a new DPF
- Purge SCR/DEF Module
- Forced DPF regen
2018 - 2022 (Years covered) - EPA17
- Reset fault codes
- Reset aftertreatment
- Reset EGR Derate
- Reset 5mph DEF derate
- Install a cleaned DPF
- Install a new DPF
- Purge SCR/DEF Module
- Forced DPF regen
- Evaluate the SCR System
2022 - 2024 (Years covered) - EPA21
- Reset fault codes
- Reset aftertreatment
- Reset 5mph DEF derate
- Forced DPF regen
History
Keeping your fault codes safe.
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.
OTR Cloud
What is OTR Cloud?
OTR Cloud is a cloud-based platform that provides diagnostic insights for fleets, allowing you to monitor fault codes, commands, and vehicle health across your entire fleet.
How does OTR Cloud help reduce downtime?
By offering diagnostic insights into fault codes and maintenance needs, OTR Cloud helps you proactively address issues before they lead to breakdowns.
Can I view historical data?
Yes, OTR Cloud lets you view active and inactive fault codes, historical fault codes, and commands.
What are the benefits for fleet managers?
Fleet managers can access comprehensive fault details, understand code causes, and share data with technicians to expedite repairs.
Engines
Engine coverage for all major brands
- Dealer-level power: Imagine having the power of OEM dealer-level software right in the palm of your hand.
- One Pro subscription covers all: With just one Pro subscription, gain access to complete engine coverage.
Engines
- Cummins 2008+ | X15, X12, ISX, ISC 8.3, ISL 9, ISB 6.7
- Volvo 2014+ | D11, D13, D13TC, D16
- Mack 2014+ | MP7, MP8, MP8HE, MP10
- Detroit Diesel 2008+ | DD5, DD8, DD13, DD15, DD16
- Paccar MX 2011+ | MX-11, MX-13
- Paccar PX 2008+ | PX-6, PX-7, PX-8, PX-9
Tap the engine make to view covered years and commands available under the pro subscription.
Volvo / Mack
Volvo - D11, D13, D13TC, D16 Engines
2014-2024 (Years Covered)
- Reset fault codes
- Reset aftertreatment
- Reset soot level
- Forced DPF regen
- Forced SCR regen
- DEF crystal sublimation
Mack - MP7, MP8, MP8HE, MP10 Engines
2014-2024 (Years Covered)
- Reset fault codes
- Reset aftertreatment
- Reset soot level
- Forced DPF regen
- Forced SCR regen
- DEF crystal sublimation
Detroit Diesel (Freightliner / Western Star)
Detroit Diesel - DD5, DD8, DD13, DD15, DD16 Engines
2008 - 2025 (Years Covered)
- Reset fault codes
- Reset aftertreatment
- Reset ash accumulator
- Reset SCR accumulator
- Forced DPF regen
- Forced SCR efficiency regen
Paccar MX (Peterbilt / Kenworth)
Paccar MX-11, MX-13 Engines
2011 - 2017 (Years covered) - EPA10 / EPA13
- Reset fault codes
- Reset aftertreatment
- Reset EGR Derate
- Reset 5mph DEF derate
- Install a cleaned DPF
- Install a new DPF
- Purge SCR/DEF Module
- Forced DPF regen
2018 - 2022 (Years covered) - EPA17
- Reset fault codes
- Reset aftertreatment
- Reset EGR Derate
- Reset 5mph DEF derate
- Install a cleaned DPF
- Install a new DPF
- Purge SCR/DEF Module
- Forced DPF regen
- Evaluate the SCR System
2022 - 2026 (Years covered) - EPA21
- Reset fault codes
- Reset aftertreatment
- Reset 5mph DEF derate
- Forced DPF regen
Cummins (All makes)
Cummins - X15, X12, ISX, ISC 8.3, ISL 9, ISB 6.7 Engines
2008 - 2024 (Years covered)
- Reset faults
- Cummins fault codes
- Reset generic fault codes
- Reset aftertreatment
- Aftertreatment maintenance reset all
- Aftertreatment maintenance filter installation
- Forced DPF regen
- Aftertreatment diesel particulate filter regeneration
- SCR Performance Test
Compatible with Paccar PX | PX-6, PX-7, PX-8, PX-9 Engines.
OTR Diagnostics - the modern scan tool & more
OTR Diagnostics gives you access to detailed fault code information, monitor real-time live data, perform commands like initiating forced DPF regeneration and track command and fault code history, all from your mobile device.
Save time and money by getting ahead of potential issues.
View fault codes on your mobile device
OTR Diagnostics gives you access to critical fault code information—just like the dealer.
You’ll get a 1:1 match with what dealership software sees, including OEM P-Codes for Paccar MX and Volvo.
✔️ Instantly identify what your dash lights mean
✔️ Understand what caused the fault
✔️ See how often the issue has occurred
✔️ Get repair guidance and know which components may need replacing
OTR Diagnostics now supports full OEM P-Code coverage
Bi-directional commands
Gone are the days when only your dealer technician or roadside mechanic could force a regen on your truck. You can also reset fault codes or aftertreatment.
Send the command from your device in just one tap, and the process begins. Now you can perform your own repairs and maintain the DPF system yourself.
✔️ Reset Fault Codes
✔️ Reset Aftertreatment
✔️ Forced DPF regen
View live data
Modern trucks have computers making thousands of decisions every second.
Live data gives you real-time information the computer is using to run the truck.
Do you want to monitor what kind of temperatures your exhaust is reaching during regeneration or what your EGR position is? Live data is where you will find it.
Viewing live data lets you see problems before they stop you in your tracks.
OTR Diagnostics lets you monitor things like:
✔️ DPF Fluid Level
✔️ Battery Voltage
✔️ DPF Soot Level
and many more!
FAQs
Please read our FAQs page to find out more.
How do I purchase to get started?
Purchase Your Package:
Select the quantity of vehicles and purchase the Professional Package to ensure you have everything you need.
Account Activation:
Check your email for an activation link. Use the same email address that you used for your purchase to activate your account.
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.
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 Wifi 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.