How OBDII helps you when buying a used car

Purchasing a used car can be a tedious process. The chances that you make a good deal might not be so good. However, if you succeed in it, you can save a lot of money and trouble. Read more about how OBD Auto Doctor assists you to achieve this goal.

But how can you make such good a deal, how can you be sure that the car has real mileage and was properly maintained, for example? Even more, some of the problems can be hidden, such as engine and transmission problems. These hidden problems might not have come out during the test drive. The key to closing the deal successfully is to eliminate these potential problems beforehand.

Reveal the Hidden Problems

First of all, one of the most beneficial means to making a good deal on buying a used car is to reveal the hidden problems immediately. OBD Auto Doctor is the tool for accomplishing this task. With our software, you can verify that the Check Engine Light (Malfunction Indicator Lamp, MIL) is really turned off, thus revealing a broken light bulb, for example. You can also check that the Diagnostic Trouble Codes (DTCs) were not incorrectly previously turned off without fixing the real problems that caused the issues. The OBD2 software also reports the pending DTCs with a click of a button. A pending DTC is a diagnostic trouble code that is stored permanently only if the fault occurs a certain number of times. A pending DTC indicates a future issue and you should take them seriously when buying a used car. The pending trouble code will remain pending until the fault condition occurs the required number of times. In this case, the DTC will be then stored permanently. A permanent diagnostic problem will light up the MIL and requires you to fix the issue as soon as possible. On the other hand, if the malfunction does not re-occur during a set period of time, the pending DTC will be automatically cleared.

Some interesting OBD parameters when examining a car:

  • Distance traveled while MIL is activated
  • Number of warm-ups since DTCs cleared
  • Distance traveled since DTCs cleared
  • Engine run time while MIL is activated
  • Engine run time since DTCs cleared

Note that the actual list of available parameters is vehicle specific and not every car supports every parameter.

Check the VIN

Secondly, you should absolutely check the car’s history records before proceeding any further. You can do this easily even on-line with Vehicle Identification Number (VIN). The VIN is a helpful identifier in this case, since a VIN is a unique for every car and it specifies the fingerprint of the vehicle. Typically, the VIN can be found by looking at the dashboard near windshield on the driver’s side of the vehicle (refer the car’s user manual for the specific location). You can also fetch the VIN with OBD Auto Doctor, and verify that the car engine has the same VIN as the physical tag. By comparing the physical VIN and the VIN reported by the OBD2 software, you can tell for sure that the car has the right engine in it.





Mobile version 1.5: Diamex DX70 and clone scantool adapters

OBD Auto Doctor has been updated once again to bring you new goodies. This is rather small update but it contains some important features that many of you have been requesting. The update is ready for download at Nokia Store!

New in version 1.5:

  • Support for Diamex DX70 Bluetooth adapter
  • Improved support for clone scantool interfaces. This includes better support for high end clone adapters as well as improved support for cheap clone interfaces.
  • New OBD2 parameters (see full list of supported OBD parameters)
  • Screen backlight settings
  • Some visual improvements

The new version got already some nice feedback: “…fast, intuitive ui, and reliable, love it” by deviantdariot. Try out the software yourself and tell us what you think!





Update for Symbian finally here

Get software update for Symbian

It’s finally here! A software update for Symbian devices is here to be downloaded.

First of all, we are extremely sorry for the long delay with the update. Nokia had some massive issues with the approval process and therefore the update was delayed due to reasons that had nothing to do with us. Nokia had given our applications unique identifiers (UIDs) that they had given to some else too. As the name suggests, the UIDs should be unique but in this case they were not. For this reason you need to completely re-install the application.

  • First, uninstall the current version from you phone.
  • Secondly, open the store client and install OBD Auto Doctor again.

If you don’t uninstall the old version, you will have two instances on your phone. Due to the UID issue, a regular update won’t work. The same procedure works for both the Lite and the Pro version. You can safely uninstall the paid Pro version and install it again from the Nokia Store. You don’t need to pay for it again. Also if you have previously tried to install OBD Auto Doctor and the installation has failed so any reason, please try again with this updated version. The UID issue is the most likely reason for this installation failure. We are terribly sorry about the manual re-installation process that you need to do. If you have any difficulties with the re-installation, please don’t hesitate to contact us.

This update includes the same improvements as the version for N9. In addition it also contains some important user interface fixes for Nokia Belle users.





Software update: Fullscreen OBD scope plus OBDKey support

The newest version of our OBDII software for mobile has been available for N9 several weeks now. Unfortunately Symbian owners need to still wait. Today, the app has been waiting for approval in Nokia Store QA for one month. We decided to publish this post even though the Symbian version is not available yet. Nokia has some serious issues and can’t even give an estimate when it will approve the update. We will make a new post as soon as the new version is available for Symbian^3, Symbian Anna and Nokia Belle devices too. We are terribly sorry about the delay.


Fullscreen OBD scope


The version 1.4 of the software includes improvements and features such as:

  • Oscilloscope improvements; now the OBD scope is automatically scaled to proper scale. Previously the scale was fixed and showed the whole scale of the possible parameter values. Another neat feature is the fullscreen scope. To open the fullscreen view, just click the graph of in the Sensor Graph view and the view will become fullscreen.

  • This version includes initial support for OBDKey scantool adapter. The very early OBDKey 1.1 and 1.2 versions might still not work. We are resolving the issue with the OBDKey manufacturer. However, the currently available OBDKey 1.4 works without any issues. OBDKey is now one of the officially supported adapters for the mobile version.

  • We also added a feature to help resolving possible connectivity issues that some of you might have. A troubleshoot log is available under Information – Troubleshoot Information. By default the log is turned off to save resources. If you are having issues connecting to your car, just turn the troubleshoot log on from the settings and send the log file to us from the Troubleshoot Information view.

The next version of the software is already cooking. It will contain tools for monitoring fuel economy among other improvements. Feedback is always very welcome, leave yours on the comments.





The good and the bad. Reviews.

I wanted to write few words about Nokia Store Reviews. We’ve been pleased to notice that most of you have been extremely satisfied with OBD Auto Doctor mobile software. But of course there have been a few not so pleasing reviews. We hope that you realize that we have no means to reply to your review message. We don’t get your e-mail address or other details from Nokia. We’d be more than happy to try to solve any issues that you might have with the software so if you have questions or issues, please contact us using other media.

Please also take into consideration that when you read 1-star reviews from others, they might be devious rivals that want to influence the app ranking. We’ve tested the app over and over again and really believe in it. I suggest that you download the free Lite version to your phone and make the conclusions yourself. I also recommend that you get the Lite version first and try the connectivity with your car. If the free version works, then the paid version will also work and the other way around. We are glad to assist you on any connectivity issues.

If you, for any reason, have issues with the connection, please consider and check the following:

  • have you turned the car key to ON position?
  • is the scantool adapter tested to be compatible? (check here)
  • are you sure your car is OBDII compatible?

If you have used the software successfully with your car, please leave a positive review because others might find it useful. We are dedicated to work hard and make the OBD2 software work on every compatible car. If you encounter any issues, please don’t hesitate to contact us. We will read and reply to your message.

Okay folks, that’s all about the reviews, hope you enjoy the software!