To People Who Want To Tune, Diagnose and Optimize Their Car — But Can't Get Started...

Take TOTAL Control of Your Vehicle — Just Like 1.5 Million Car Owners, DIY Enthusiasts and Mechanics Have Already Said "Yes!" To...

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Compatible With...

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See All Compatible Models Here

Significantly Improve Your Cars Performance and Perform Advanced OBD2 Diagnostics With This Award-Winning TOAD Software and Connector...

Click here to Get Started Now

What Can Total Car Diagnostics Do For You?...

...and why so many car companies, home car owners like yourself, DIY car enthusiasts and serious mechanics trust us.

We help fellow home car owners, mechanics, technicians, garage shops, engineers, ECU chiptuners and auto repair centers — to significantly cut down on maintenance, repair costs, time, money, energy... and all other frustrating headaches involved with dealing with vehicles — by providing cost-effective advice, tools and recommendations.

Our help is based on collective 60+ years of experience dealing with every imaginable vehicle situation. From chip tuning ECU performance, OBD2 diagnostics, repairing cars complex electrical systems, performing car service and mechanic work.

  • OBD Scanners

    Give peace of mind to home car owners and enthusiasts by giving them easy-to-use-and-understand, yet super-powerful diagnostic OBD scan tools — that’ll deeply dig into vehicles various systems and show various health/fault/performance reports that’ll either save you a lot of time, money and energy in repairs/maintenance or will help you avoid a future unexpected brake-down altogether.

  • Advising Auto-Mechanics

    Help auto mechanics, technicians and service centers to make a lot more money in their business by providing world-class tuning and diagnostic tools that’ll get the job done quicker and easier. This is based on our experience of using almost every known decent tuning/scantool ever made. So we can give you profitable recommendations.

  • Chip Tuning

    We allow car enthusiasts to get more performance (torque, BHP) from their vehicle by tuning the ECU chip (‘brain’ of the vehicle that tells it how to run) through our software.

Significantly Improve Your Cars Performance and Perform Advanced OBD2 Diagnostics With This Award-Winning TOAD Software and Connector...

Click here to Get Started Now

What Is OBD?

...and why you should care that your car has it?

OBD stands for On-Board Diagnostics, which is a computer system found in modern vehicles. Main purpose of an OBD system is to monitor emissions and diagnostic related information in your vehicle.

OBD systems provide a large number of benefits for both vehicle owners and technicians. OBD systems can detect fault conditions early, before serious damage occurs to your vehicle. When a fault is detected, the OBD system can provide information about the cause of the fault, including a snapshot of the conditions leading up to the fault. OBD systems also provide real-time sensor readings from the vehicle, allowing users to measure items such as vehicle speed, engine RPM, and torque and calculate useful data such as fuel economy and usage.

OBD2 systems include a 16-pin OBD2 diagnostic connector, which is located on the driver side of your vehicle below the steering wheel. Using a specialized diagnostic tool, called a scan tool, you can access the OBD2 computer system in your car.

There are two basic types of scan tools: PC/Mobile-based and stand alone. Stand alone scan tools are typically handheld devices that do not require a computer or mobile device for operation. They are often limited in functionality, lack advanced diagnostic features, are not upgradeable, and come with a high price tag. PC/Mobile-based scan tools require a laptop, mobile phone, or tablet with OBD software to read OBD diagnostic data. The scan tool connects to the laptop or mobile device using USB, Bluetooth, WiFi, or a Serial port. PC/Mobile-based scan tools are very flexible and powerful because they harness the power and upgradeability of modern computers and mobile devices.

PC-based scan tools harness the power and economy of scale of modern PCs, and have a number of important advantages:

  • Large, easy-to-read screen
  • Unlimited storage for data logging
  • Wide selection of diagnostic software that can be easily updated
  • Remote data acquisition
  • Cost a small fraction of the cost of comparable stand-alone scan tools

Our Total Car Diagnostics PC based scan tools can:

  • Turn off the check engine light, and erase stored diagnostic information
  • Check emissions readiness
  • Read and erase trouble codes (generic and manufacturer-specific)
  • Display real time parameters
  • Record data for later playback
  • Plot data in the form of graphs & maps
  • Display customizable Digital Gauges
  • Serve as a dynamometer
  • Provide a drag strip feature
  • Generate printable diagnostic reports
  • Access manufacturer-specific information
  • Do lots of other cool and useful things

None of the stand alone scan tools available on the market today (even the ones that cost thousands of dollars) can even approach this feature set that our scanners provide.

Here's what else a good OBD scanner like TOAD can do for you...

  • Live Data

    Monitor real time data (while car is moving or when ignition is ON) like: Engine Temperature, O2 Value, RPM, Speedometer, LAC Value, Battery Voltage, Ignition Angle, etc…

  • Service Lights

    Reset or turn-off Warning, Oil Inspection & Service Lights that mechanics would otherwise charge you $250+.

  • Measure Fuel Economy

    Know your cars exact fuel consumption under various conditions. With this data, you’ll know exactly what to do to significantly reduce fuel.

  • "Hack" Performance/Torque

    “Hack” your car’s performance, optimize fuel consumption, perform live diagnosis and fix common problems that mechanics usually charge thousands.

  • Check 'Emissions-Test' Before Rego-Renewal

    Time for an inspection before registration renewal? OBD test will allow you to check your emissions status before you go wait in line to pay for the test, so you can be confident that it will pass!

  • Test If Various Systems are Working

    Good OBD Software will have Actuation Function. This let’s you activate and test various car components to verify they’re actually working properly on physical level.

What Others Are Saying About Our Products...

TOAD's functionality is worth every penny.

This has taken the place of my $130 scanner, mostly because it has so many more features than the typical scantool. TOAD also allows you to see live sensor data, which is much more useful in pin pointing failures or potential failures. IE, I'm planning to tow a trailer near weight capacity on my vehicle... and this app will allow me to monitor EGT's as well as transmission temps to avoid damage.

Tim Froster

TOAD embarrassingly trumps our $3000 Scantool...

I work as an auto mechanic, and we have a snap on solus machine that cost us $3k... TOAD does a better job of talking to car ECU's and helping diagnose emissions issues than the snap on machine, and has saved my butt at work several times while working on cars. Definitely a huge advantage using this. I certainly recommend this for mechanics. It may be a little too much for home user, as long as they are willing to invest an hour.

Mark Henry

....more horsepower and better gas mileage!!!

This was probably the best money I've ever spent on my truck! Before I installed the programming in stock form my truck got 15.5 mpg and 325 miles to a tank of gas in mixed driving... Now it gets 18.5 mpg and 360-400 miles per tank of gas in mixed driving! Thanks bullydog for making such a great product with great tech support.

Erick Schulze

Helped to increase Torque

My truck only has 79,000 miles on it and with this and a specter intake it runs a lot better and gets amazing gas milage over stock. Increase in power and it helped to increase my low end torque.

William Smart

Never Get Ripped Off Again!

With TOAD You Can Diagnose & Hack Your Car Performance In 10 Minutes - with Push of a Mouse-Button!

Until now, car owners were helpless victims when it comes to knowing their cars health, saving fuel, getting more torque, power... and especially victims to expensive overcharged mechanical repairs. They'll now know exactly at push-of-a-button, what's wrong with their car and how to fix it in most cost effective way. They'll walk armed with this knowledge, and never get ripped off again by auto mechanics!

Still Have Questions about Our Products & Services?

Check out these frequently asked questions...

Is My Car Supported?

Go here and click on your country to find out.

What if it doesn't work on my vehicle?

All Total Car Diagnostics products are covered with a 1 year money back guarantee. Meaning you can return the product within 365 days from time of purchasing it. As long as it's still in original condition, we'll issue you a no-hassle, immediate refund.

What Do I Need To Run TOAD Software?

All you need is a computer (laptop/tablet) powered by Windows. And the connection interface which you'll get when you choose to own TOAD.

What's so special about your software compared to competitors?

We've been in auto-industry for over 15 years. Our 60+ years of combined experience means our software is some of the most powerful OBD scanning software in the world. That's why companies like BMW and Toyota use us. We're not your "one-guy-in-his-bedroom". We're a serious company that constantly innovates. What's more, all our products get lifetime free support. Meaning you can submit a ticket to us anytime, and we'll provide you technical support.

Significantly Improve Your Cars Performance and Perform Advanced OBD2 Diagnostics With This Award-Winning Software and Connector...

Click here to Get Started Now