Imagine yourself driving calmly on board your GMC Yukon XL and suddenly an engine warning light shows up on your dashboard ! The most standard kind of reaction is the worry of risking a severe problem. To know what accurately this light refers to, you will have to learn how to read an GMC Yukon XL fault codes, you may have previously heard about OBD system, this is precisely what we are going to speak about. Our editors have chosen to produce this content to help you fairly quickly locate the source of this default code and to give you reassurance. To perform this, we will first take a look at the nature of a fault code on GMC Yukon XL, then how to read an GMC Yukon XL fault code, and finally how to erase this fault code in order to turn off the light on your dashboard.

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What is a GMC Yukon XL fault code?

A fault code is a universal or standard code which is identical to all manufacturers , they are also known as DTC (Data Trouble Code), the goal is to make sure that any diagnostic OBD can understand them. They will be represented by a standard format, like for example: P0255. Each info will have a precise interpretation. Default codes are codes issued by the calculators of your GMC Yukon XL. These ECUs will continuously monitor your vehicle’s emissions, pressures, mixtures and when the values exceed the limits set by the vehicle’s ECU, the fault code will emerge. The benefit of knowing how to read a fault code on your GMC Yukon XL is that you will have gain access to to specific statistics about your vehicle which will allow you to find out what concern you are facing.

How to read a fault code on my GMC Yukon XL?

In this second part we will now focus precisely on what brings you on the website, how to read a fault code on GMC Yukon XL. To discover this useful info you will need to to buy a diagnostic tool, also called OBD 2, named after the socket on your GMC Yukon XL to which you will have to connect. These diagnostic tools are easily available for purchase, you will be able to find some in Bluetooth version which connects to your phone and some standard versions with a reader associated to the socket, as far as price is concerned, you will be able to find models between 30 and 100 euros. Once you have purchased an OBD2 diagnostic reader, you will have to find the diagnostic plug on your GMC Yukon XL, it is found on the left side of your steering column on the lower part of your dashboard, behind a hatch. It is easy to locate because it is triangular shaped and has 16 pins. All you have to do is connect with your diagnostic tool to read the fault code of your GMC Yukon XL.

How to erase the fault code GMC Yukon XL

Finally, to conclude this article, we are going to explain you the methode to do to erase a fault code on your GMC Yukon XL. Once you have navigated through the menus, you will access the list of active fault codes on your car. But, you will have to ask yourself an important question, is it really good to erase this fault code on GMC Yukon XL? Indeed, erasing a fault code without resolving the problem corresponds to burying its head in the sand. Additionally, the computer of your GMC Yukon XL is made to take resolutions depending to the data it records, if a very important fault code is present, it will actually adjust the engine operation to preserve it. So if you delete the fault code, make sure to fix the problem to which it is associated. Some OBD diagnostic tools do not allow you to do this. You have a dedicated navigation menu on most diagnostic tools that should allow you to clear this fault code on GMC Yukon XL.

To get more tips on the GMC Yukon XL, take a look at the GMC Yukon XL category.