If you've ever noticed flashing lights on your car's dashboard and don't know what they mean, technology can be your ally. There are currently free apps that help you diagnose vehicle faults directly from your cell phone.

With the help of an OBD2 scanner, you can access detailed information about the engine, fuel consumption and possible mechanical problems before even taking the car to the mechanic.

In this article, we present the best free apps to diagnose your car using your cell phone, which can help you save time and money on preventive maintenance.

What is an OBD2 Scanner and How Does it Work?

O OBD2 (On-Board Diagnostics 2) is a diagnostic system present in most cars manufactured from 1996 onwards. It allows the vehicle to communicate faults and performance parameters through a specific connector, usually located below the dashboard.

To use automotive diagnostic applications, you need a OBD2 scanner, which can be found in versions Bluetooth or Wi-Fi. With it, simply connect it to the car, pair it with your cell phone and use one of the apps listed below to access all the vehicle's information.

Now that you know how it works, check out the best free apps to monitor your car.

OBD Auto Doctor – Complete Diagnostics on Your Cell Phone

O OBD Auto Doctor is one of the most popular apps for automotive diagnostics via mobile. It allows drivers to read error codes, monitor engine performance and even clear recorded faults.

Main advantages:

• Complete diagnostics of the vehicle's engine and sensors
• Reading and erasing error codes (DTCs)
• Fuel consumption monitoring
• Compatible with most Bluetooth and Wi-Fi OBD2 scanners

How to use OBD Auto Doctor:

1. Download the app from the Play Store or App Store
2. Connect OBD2 scanner to vehicle
3. Pair the app with the scanner
4. View error codes and engine status in real time
5. If necessary, clear fault codes and monitor vehicle performance.

If you want an easy-to-use and reliable app for car diagnostics, OBD Auto Doctor is a great choice.

Download the app by clicking the button below for your app store.

Car Scanner ELM OBD2 – Real Time Monitoring

O Car Scanner ELM OBD2 is another excellent option for those who want to monitor vehicle performance with accurate real-time data. It provides detailed reports about the car's engine and sensors.

Main advantages:

• Reading and interpreting car error codes
• Display real-time graphs and data
• Emissions testing and fuel consumption monitoring
• Compatible with various vehicle makes and models

Step by step to use ELM OBD2 Car Scanner:

1. Install the app on Android or iOS
2. Connect the OBD2 scanner to your car and pair with the app
3. Access detailed engine and sensor information
4. Use reports to identify faults and monitor consumption

For those looking for an intuitive and efficient application, Car Scanner ELM OBD2 is an excellent alternative.

Download the app by clicking the button below for your app store.

Infocar – OBD2 ELM Diagnostics – Detailed Reports

O Infocar – OBD2 ELM Diagnostics stands out for its user-friendly interface and detailed reports. In addition to interpreting error codes, it offers recommendations on how to solve the detected problems.

Main advantages:

• Explanation of error codes and suggested solutions
• Performance and fuel consumption monitoring
• Intuitive and easy to understand interface
• Detailed diagnostics of car electronic components

How to use Infocar:

1. Download the app from the Play Store or App Store
2. Connect OBD2 scanner to your car
3. The app will analyze the data and show you complete reports about the vehicle's health.
4. Follow the suggestions to fix faults and improve car performance

If you are looking for an application that provides complete diagnostics and maintenance suggestions, Infocar is the best choice.

Download the app by clicking the button below for your app store.

Which App to Choose?

Now that you know the three best free apps to diagnose your car, see which one is best suited to your needs:

• OBD Auto Doctor → Best for detailed diagnostics and complete car monitoring
• Car Scanner ELM OBD2 → Ideal for those who want to view data in real time and monitor engine performance
• Infocar – OBD2 ELM Diagnostics → Perfect for those who want detailed reports with explanations about failures and possible solutions

The good news is that all of the apps are free. You can try each one and see which one best suits your needs.

Conclusion

Having a car diagnostics app on your cell phone can help you avoid unnecessary expenses, prevent mechanical problems and keep your car in great condition.

With an OBD2 scanner and one of the listed apps, you can read error codes, monitor fuel consumption, and identify faults before they become major problems.

Now it's your turn. Choose one of the apps, connect your OBD2 scanner and start diagnosing your car today.