Key in a command to “read” or “scan” the diagnostic system. How to do this depends on the brand of OBD-II device you are using. Button layout differs from model to model, and some devices may use a menu system. Exact code retrieval instructions will be located in your device’s handbook.
Read through the trouble codes on your device’s read-out screen. Copy these codes down onto a sheet of paper. Some devices are USB equipped and can connect directly to a computer with a USB cable. If you have this type of OBD-II scanner, device-to-desktop connectivity will covered in your scanner’s handbook.
Look up the trouble codes in your device’s handbook. Typically, generic Auto code reader are located in an appendix toward the back. These are the standardized generic codes good for all OBD-II compliant vehicles. Manufacturers also have a supplementary set. A vehicle’s owner’s manual will not have these codes. You will need to be look them up online or in a repair manual for your particular vehicle.
The first thing to consider when searching through a plethora of OBD2 Scanners available is its Diagnostic Features. This is prime information that is gonna tell you whether (or not) a certain device will go with your car make. The cars manufactured before 1996 will not be compatible with any of the scanners on the market for the reason they’re not equipped with an OBD2 port, so, be aware. All scanners provide some built-in programming diagnostic software or a CD so a user doesn’t need to buy any special hardware. Diagnostic features vary a lot depending on the model of a device and a manufacturer (though, the plan is to extend functionality for more vehicles).
However, there are certain things that are common for all – most Auto key programmerare capable of updating their software and extending functional with micro-programs via the Internet and PC. These programs are usually easily found on the official websites of manufacturers and available for free download.
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