Before you purchase, borrow, or rent a vehicle analytical instrument, in addition, it is important to comprehend the gap between OBD-I and OBD-II. Vehicles which were created after the arrival of automatic controllers, but before 1996, are lumped together in the OBD-I class. These programs do not have a great deal of common between different manufactures, therefore it is essential to obtain a scan tool which was specifically intended for the make, model, and year of your car or truck.
Vehicles made after 1996 utilize OBD-II, which will be a standardized system which simplifies the process a lot. All these vehicles use a standard diagnostic connector plus a pair of universal difficulty codes. Producers can opt to go above and beyond the fundamentals, leading to manufacturer-specific codes, but the guideline is you can use some OBD-II code reader on almost any automobile produced after 1996.
Locating Where to Plug a Diagnostic Tool
As soon as you’ve your hands on an internet search engine light code reader or a scanning tool, the very first step in using it is to find the diagnostic connector. Older vehicles outfitted with OBD-I systems found these connectors in a variety of areas, including beneath the dashboard, either in the motor compartment, and on or close to a fuse block.
OBD-I diagnostic connectors also come in a number of sizes and shapes. When you have a look at the plug in your scanning tool, you need to be able to have a fantastic idea about what to look for in regard to the dimensions and contour of the diagnostic connector.
If your car or truck has OBD-II, then the connector will ordinarily be located beneath the dashboard to the left of the steering column. The situation may change from 1 version into another, and they may also be buried fairly deep. Sometimes, you might discover that the diagnostic connector is covered by a plug or panel.
The connector will probably be rectangular or shaped like an isosceles trapezoid. It is going to also have sixteen pins which are configured in two rows of eight.
In rare situations, your OBD-II connector might even be found in the middle console, behind the ashtray, or at other hard to locate places. The particular position will ordinarily be listed in the operator’s manual when you have trouble finding it.
With a Check Engine Light Code Reader
Together with the ignition key turned off or eliminated, you are able to gently insert your code reader plug to the diagnostic connector. When it does not slide easily, then be sure that the plug is not upside down and you have properly identified the OBD-II connector.
Together with all the diagnostic connector plugged securely, you are able to add your ignition key and turn it into the on position. This will give power to the reader. Based on the particular apparatus, it may prompt you for some advice at that moment. You might have to input the VIN, the sort of engine, or other info.
At the stage, the code reader will be prepared to perform its own work. The simplest apparatus will just supply you with any stored codes, even though other scan programs will provide you the choice to browse the trouble codes or see different information.
Interpreting Check Engine Light Codes
In case you’ve got a fundamental code reader, you’ll need to write down the problem codes and also do some study. As an example, if you discover a code P0401, a fast Internet search will show that it signals an error in one of the oxygen sensor ducts. That will not tell you just what’s wrong, but it is a fantastic place to get started.
Some scan tools are more sophisticated. In case you have access to these, the tool could have the ability to let you know precisely what the code means. Sometimes, it will also supply you with a troubleshooting process.