We have combined lots of resources into a free on-line auto diagnostic resource for you to access. If you're a General Workshop/Garage or Motoring Enthusiast we hope and think you'll find some use from the resources now online.


The WORLDS largest collection of free to access DTC/OBD and Manufacturer error codes. We are adding new codes and descriptions every day. Where we obtain new information we share it. From Mercedes to BMW to Ford we have it covered.

If you have a code to submit or maybe a collection of codes or some descriptions which you think might be of use to other people please use the "Submit DLC information page"

Information is the greatest resource you can have when repairing any motor vehicle, if you are technically minded then we believe with a little help you will be able to repair the most simple problems without a costly visit to a garage. With the backup of us, South Wales largest Auto Diagnostic specialists you're car can be in tip top condition in no time. Its worth nothing that learning about On Board Diagnostic systems is probablly best done when the car is working, so there is no time like the present!