Think about yourself driving peacefully aboard your Citroen C4 and abruptly an engine warning light appears on your dashboard ! The most frequent kind of response is worries of risking a critical issue. To know what accurately this light corresponds to, you will have to learn how to read an Citroen C4 fault codes, you may have previously heard about OBD system, this is exactly what we are going to focus on. Our editors have decided to compose this document to enable you fairly quickly find the source of this default code and to give you serenity. To achieve this, we will first examine the nature of a fault code on Citroen C4, then how to read an Citroen C4 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 Citroen C4 fault code?

A fault code is a generic or standard code which is identical to all automotive companies , they are also named DTC (Data Trouble Code), the purpose is to be sure that any diagnostic OBD can interpret them. They will be symbolized by a standard format, like for example: P0255. Each info will have a particular meaning. Default codes are codes issued by the calculators of your Citroen C4. 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 appear. The advantage of knowing how to read a fault code on your Citroen C4 is that you will have access to specific statistics about your car which will enable you to figure out what trouble you are standing in front of.

How to read a fault code on my Citroen C4?

In this second section we will now focus precisely on what brings you on this site, how to read a fault code on Citroen C4. To discover this valued info you will need to to purchase a diagnostic tool, also known as OBD 2, named after the socket on your Citroen C4 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 discover the diagnostic plug on your Citroen C4, it is located 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 Citroen C4.

How to erase the fault code Citroen C4

Finally, to finish this content page, we are going to explain you the methode to perform to erase a fault code on your Citroen C4. 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 beneficial to erase this fault code on Citroen C4? Indeed, erasing a fault code without dealing with the issue is like burying its head in the sand. In addition, the computer of your Citroen C4 is made to take decisions depending to the data it records, if an essential fault code is present, it will likely adapt the engine overall performance to protect it. So if you get rid of the fault code, make sure to solve the issue 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 Citroen C4.

To get more tips on the Citroen C4, take a look at the Citroen C4 category.