Imagine yourself driving calmly aboard your Toyota Corolla and abruptly an engine warning light appears on your dashboard ! The typically seen reaction is worries of risking a severe issue. To know what exactly this light refers to, you will have to learn how to read an Toyota Corolla fault codes, you may have previously heard of OBD system, this is precisely what we are going to talk about. Our editors have decided to write this piece of content to enable you fairly quickly discover the origin of this default code and to give you peace of mind. To achieve this, we will first look at the nature of a fault code on Toyota Corolla, then how to read an Toyota Corolla 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 Toyota Corolla fault code?

A fault code is a universal or standard code common to all automotive companies , they are also named DTC (Data Trouble Code), the purpose is to ensure that any diagnostic OBD can understand them. They will be represented by a standard format, such as example: P0255. Each data will have a special interpretation. Default codes are codes issued by the calculators of your Toyota Corolla. 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 show up. The advantage of knowing how to read a fault code on your Toyota Corolla is that you will have be able to access to complete data about your vehicle which will enable you to understand what issue you are facing.

How to read a fault code on my Toyota Corolla?

In this second section we will now focus specifically on what brings you on this site, how to read a fault code on Toyota Corolla. To discover this precious data you will need to to purchase a diagnostic tool, also referred to as OBD 2, named after the socket on your Toyota Corolla 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 obtained an OBD2 diagnostic reader, you will need to find the diagnostic plug on your Toyota Corolla, 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 Toyota Corolla.

How to erase the fault code Toyota Corolla

Finally, to finish this article, we are going to demonstrate you the methode to carry out to erase a fault code on your Toyota Corolla. Once you have navigated through the menus, you will access the list of active fault codes on your car. However, you will have to ask yourself an essential question, is it really productive to erase this fault code on Toyota Corolla? Indeed, erasing a fault code without dealing with the issue corresponds to burying its head in the sand. Additionally, the computer of your Toyota Corolla is made to take decisions depending to the data it records, if a crucial fault code is present, it will possibly adapt the engine general performance to protect it. So if you erase the fault code, make sure to solve the issue to which it is linked. 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 Toyota Corolla.

To discover more tips on the Toyota Corolla, take a look at the Toyota Corolla category.