Imagine yourself driving quietly aboard your Mercury Grand Marquis and suddenly an engine warning light shows up on your dashboard ! The most frequent kind of reaction is the worry of risking a critical issue. To know what exactly this light refers to, you will have to learn how to read an Mercury Grand Marquis fault codes, you may have previously heard of OBD system, this is precisely what we are going to focus on. Our writers have decided to write this article content to help you quickly locate the source of this default code and to give you peace of mind. To accomplish this, we will first look at the nature of a fault code on Mercury Grand Marquis, then how to read an Mercury Grand Marquis fault code, and finally how to erase this fault code to be able to turn off the light on your dashboard.

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What is a Mercury Grand Marquis fault code?

A fault code is a generic or standard code which is identical to all automotive companies , they are also called DTC (Data Trouble Code), the objective is to be sure that any diagnostic OBD can interpret them. They will be represented by a standard format, like for example: P0255. Each info will have a special interpretation. Default codes are codes issued by the calculators of your Mercury Grand Marquis. These ECUs will constantly monitor your vehicle’s exhausts, pressures, mixtures and when the values exceed the limits set by the vehicle’s ECU, the fault code will show up. The advantage of understanding how to read a fault code on your Mercury Grand Marquis is that you will have gain access to to specific info about your motor vehicle which will enable you to find out what trouble you are standing in front of.

How to read a fault code on my Mercury Grand Marquis?

In this second part we will now focus precisely on what brings you on the website, how to read a fault code on Mercury Grand Marquis. To gain access to this valuable info you will need to to get a diagnostic tool, also known as OBD 2, named after the socket on your Mercury Grand Marquis to which you will have to connect. These diagnostic tools are freely available in the market, 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 obtained an OBD2 diagnostic reader, you will have to identify the diagnostic plug on your Mercury Grand Marquis, 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 Mercury Grand Marquis.

How to erase the fault code Mercury Grand Marquis

Finally, to finish this article, we are going to demonstrate you the methode to perform to erase a fault code on your Mercury Grand Marquis. 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 essential question, is it really productive to erase this fault code on Mercury Grand Marquis? Indeed, erasing a fault code without resolving the issue corresponds to burying its head in the sand. Additionally, the computer of your Mercury Grand Marquis is made to take decisions depending to the data it collects, if a crucial fault code is on, it will actually modify the engine general performance to preserve it. So if you erase the fault code, remember to resolve 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 Mercury Grand Marquis.

To find more tips on the Mercury Grand Marquis, take a look at the Mercury Grand Marquis category.