OTR Diagnostics gives you access to vital information about fault codes, their causes and more. These details rival advanced dealership software, far exceeding your average handheld scan tool.

Pro Subscription and App Explained
OTR Diagnostics goes beyond your typical hand held scan tool.
VIEW FAULT CODES ON YOUR MOBILE DEVICE
Once you know the problem you can take care of it. Who’s in control now?
This device has already paid for itself! It correctly said we needed a NOX sensor in order to get the check engine light off. 100% correct! Saved several trips to the dealer. 5 Stars!
Greg W.
OWNER-OPERATOR
2014 KENWORTH PACCAR MX-13
SEND 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.
Didn’t we say you’ll feel like you're in control?
Really enjoy how much information is offered with this tool and details how to fix the problem without a expensive bill at the end besides buying the parts .. For a owner operator you can’t go wrong with this tool trust me.
Fred O.
OWNER-OPERATOR
2014 KENWORTH PACCAR MX-13
VIEW LIVE DATA
Modern trucks have computers making thousands of decisions every second. OTR Diagnostics’ 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 that and so much more. 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 | ✔️ Boost Pressure |
✔️ EGR Valve Position | ✔️ Accelerator Pedal Position |
✔️ Exhaust Temps | ✔️ Engine Fuel Delivery Pressure |
“Just got the otr tool today, hooked it up and couldn't be more pleased with how well it works and the real time data is a huge help when trying to diagnose.”
James R.
OWNER-OPERATOR
2014 VOLVO D13
VIEW HISTORY
Puzzled with a reoccurring issue that’s not so easy to resolve? Knowing your history can help you diagnose the problem. OTR Diagnostics records fault codes and commands. Now you’ll know where your truck had issues and when you reset fault codes, reset aftertreatment, initiated forced DPF regens, and how long regen lasted.
“After $1800+ dealer dollars in a month, I went for OTR’s subscription because of the 60 day return and solved my issue in about 2 hours after the tool arrived. After clearing codes and a 90 minute regen … Issue fixed. Money well spent.”
George G.
OWNER-OPERATOR
2009 FREIGHTLINER - CUMMINS ISB
OTR Diagnostics Features at a Glance
Multiple Vehicle Vin
Get full diagnostic access to an unlimited number of vehicles with a variety of makes and engines.
Read and Reset Fault Codes
View/reset active and inactive fault codes. Detailed descriptions provide troubleshooting, history, possible fixes.
Fault Code & Command History
Know how often and when a fault code was reset or a forced DPF regen lasted.
Reset Emission Derates
When you’ve replaced aftertreatment components to comply with a derate, you can reset the aftertreatment values and be on your way.
Start Forced DPF Regen
Perform a forced regen when you’re unable to initiate a passive or active regen due to a high soot load or other variables.
Live Data
Viewing live data keeps you informed about your vehicle at any moment. Data includes: DEF Fluid Level, DPF Soot Level, EGR Value Position, Aftertreatment
Exhaust Temps, (+more).
Offline Mode
Use OTR Diagnostics even in locations with no service or data with up to 14-days from your last online session.
OTR Diagnostics FAQ
How does the subscription work?
Does this App need to be online to be used?
I currently have a compatible Bluetooth Adapter. How can I purchase only a subscription?
If I have an existing OTR Performance account, how do I link my OTR Diagnostics subscription to the account?
Which platforms Is OTR Diagnostics available for?
How do I create an account?
- You have to create an account on the web browser. Follow the details below to get started.
- Create an account at otrperformance.com/account/register
- Purchase your professional package / subscription and use your email that you used when purchasing.
- If you purchased, please check your email to activate your account with the email that you purchased with.
- Please note: OTR Diagnostics Subscription is tied to your email that you used to make the purchase.
- Download the "OTR Diagnostics" mobile app and use the credentials created to Login in to "OTR Diagnositics" on both iOS & Android.
- If you experience any issues, please email, chat or call us! 586-799-4375
- Purchase your professional package / subscription and use your email that you used when purchasing.
60-Day Guarantee
We get it, you don’t know us very well yet. That’s why all OTR tools come with a 60-day, no-hassle money-back guarantee. If this tool doesn’t fit your needs for any reason, just let us know within 60 days of receiving your order, and we’ll refund 100% of your purchase price. We’ve got your back.
USA Support
Located in Detroit MI, (EST). A truly committed team of trained experts that are there to assist with any customer service, technical support or general questions you may have. No bots. No bouncing. Real help from real people, when you need us! Contact us via phone, chat, or email anytime.
- Reviews
- Questions

Wish it could change items like speed limiter.

great tool
Saved me money and time. Great product.

Works well
It saves money from going to the shop and you can regen when you want

Good tool n I need 2 more tool
It's very good, safe my money n time, but I need couple more tool for my new truck, is any one can help me get 2 more tool

Great Tool
i would recommend to all my friends

It’s good could use more features
I like the product it’s very useful when on the road n need quick diagnostics. It be nice if it had additional features with regen. Like monitoring values and running programs features like testing components.

This tool is a game changer.
I couldn’t be happier! I recommend this to anyone running a diesel truck, it pays for itself in no time. Jason and all the staff at OTR are top notch.

Wish I had it sooner
It was great can't ask for more nothing but the best.

paccar saver
Been very helpful hope it continues with my volvo

Wouldn't truck without it
As an OO, thus is a must have tool, especially for paccar motors.


Works..
I originally ordered otr tool to be able to do manual regens on my 2016 cascadia and it does that fine. It also reads codes and gives suggestions on what could be the problem. It will also erase codes and check engine lights but they will come back if you have a problem. That 600 dollar bill once a year is tough though.

Better get yours today !
I just used mine today! Saved me a big tow bill, got me to the shop and now being fixed ! Highly recommend this tool . I just renewed for the second time

Great
Love it great tool


Has Been Very Useful - Wish That There Was a Lower-Cost Option
I use this on on Volvo 780 that was converted to an RV Hauler. I have used it to scan codes, check emissions system status, run a forced regen, and reset 5 MPH derate. Because I only use this truck for a few months each year, I wish that there was a lower-cost 6-month subscription.