The ELM327 Bluetooth scanner is a popular, modern and convenient device for car diagnostics. It allows you to access information about errors and vehicle operation parameters via a smartphone. This tool is ideal for car owners for regular diagnostics.
In this article, we will explain in detail how to use the adapter ELM327 correctly: from device connection to reading car errors.
What is ELM327?
As we mentioned in one of the recent articles, ELM327 is a microcircuit used in a small adapter that connects to your car's OBD-II diagnostic port. Sometimes this device is also called a OBD2 adapter. On-Board Diagnostics-II standard was implemented in cars from 1996 and allows electronics to engage with ECU software. If you are interested in details of Car Compatibility with OBD-II, we offer you to review mentioned article.
OBD2 adapters are available with various connection types, such as USB, Bluetooth, and Wi-Fi. Each of these options has its own advantages and disadvantages. For example, Bluetooth adapters provide a wireless connection to your smartphone or tablet, allowing you to use them from a distance. On the other hand, USB adapters can be more reliable in terms of connection stability. inCarDoc adapter ELM327 supports Bluetooth and Wi-Fi connection, fully completable with inCarDoc app. Most wierless adapters support both the Android and iOS operating systems.
There are five basic OBD-II protocols in use - CAN, ISO 9141, ISO 14230 (also KWP2000), PWM è VPW, each with minor variations on the communication pattern between the on-board diagnostic computer and the scanner console or tool.
Steps to connect and use ELM327
Currently, there are numerous adapters on the market. They differ in external design, quality and price. The principle of connection is the same. ELM327 adapter connects via 16 pin-out DLC - Diagnostic Link Connector of a trapezoidal shape. Usually, this port is located on the driver's side under the dashboard within 2 feet (0.61 m) of the steering wheel. It depends on the car manufacturer. Just plug in your adapter to this port. Commonly, adapters are equipped with a light sensor to report the successful connection of the adapter to the car. We offer you a some kind of checklist on how to choose ELM327 OBD2 adapter and will guide you how to connect it with inCarDoc app.
Device compatibility
- Verify if the adapter supports the OBD2 protocols of your vehicle
- Make sure it supports your connection type (Bluetooth, Wi-Fi)
- Bluetooth 4.0 or higher for faster connections and lower power consumption.
- Wi-Fi Option: Prefer Wi-Fi for iOS devices or if your phone/tablet lacks Bluetooth.
Installing the diagnostic application
You can download inCarDoc app on App Store or Google Play.
inCarDoc offers users to purchase a branded inCarDoc adapter. We offer a stable and fast connection adapter with sturdy build and quality components.
A connection guide
Connecting the ELM327 to the car
- Plug the OBD-II Wi-Fi Adapter into your car's OBD2 diagnostic port.
- Start the car's engine
- Wait for an indication of readiness
Connecting a smartphone to an adapter
- Turn on Bluetooth or Wi-Fi on your smartphone.
- Find the adapter in the list of available devices (it is usually called "OBDII", "ELM327" or similar).
- Return to the application and open 'Settings' window. Proceed to the 'Connection' and in the 'Connection type' choose Wi-Fi. Wi-Fi settings is configured by default.
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Enabled the app to access Bluetooth in the system settings. Go to the InCarDoc application Choose Settings > Connection type > Select one from the available connection adapter mode
The inCarDoc app connection settings
- On the 'Home' screen, tap on 'My unselected car'
- Press the (+) button to add a car
- On the 'Add a car' screen, fill in all the required fields
- Click the 'Save' button.
- On the 'Home' screen, click on the 'Diagnostics' section; If errors are detected after the scan is completed, errors will be displayed on the 'Diagnostics' screen.
How to read and clean errors
You can start DTC scanning with the inCarDoc app after connecting the adapter and adding the vehicle. A list of diagnostic trouble codes (DTCs) will be shown by the application. Diagnostic-trouble codes has default number and explanation. By clicking on one of the errors in the list, you can view information about the selected error. The 'Send' and 'Save to Logbook' options are also available on the Diagnostics screen. Note that the 'Save to Logbook' feature is available in the Pro version of the app. The ability to save and view errors provides a more complete picture of the state of your car, and when returning one error, the driver can check the car in more detail already at the service center.
Also, inCarDoc offers to clear all founded errors just with one click on the 'Clear' button. 'Monitor Status' and 'Mode 06' sections are available on the 'Diagnostics' screen too.
Advantages of using ELM327
| Availability | The ELM327 costs significantly less than professional scanners, while providing sufficient functionality for most users. |
| Easy to connect | No special equipment or complicated settings are required to use the device. |
| Mobility | With the help of a smartphone and a compact adapter, you can perform diagnostics anywhere. |
| Saving time and money | Self-diagnosis eliminates the need to visit a car service to identify minor malfunctions. |
Tips for using ELM327 adapter and OBD2 mobile apps
- Do not use the adapter while driving. This can be distracting and disrupt road safety.
- Stay tuned for app updates. New versions can add useful features and improve performance.
- Check the compatibility. Make sure that your car supports diagnostics via OBD2 and the selected application.
The ELM327 Bluetooth scanner is a convenient solution for monitoring and diagnosing your car. With its help, you will be able to detect malfunctions in a timely manner, improve performance and ensure safety on the road.
If you want a simple, reliable and functional application that works with the ELM327 adapter, inCarDoc is what you need. It is a universal diagnostic application that provides access to all necessary vehicle data. It allows you to read error codes, monitor parameters in real time and reset faults. Thanks to its intuitive interface and compatibility with most cars and adapters, inCarDoc is ideal for both beginners and experienced users. Using inCarDoc, you get a powerful tool to analyze and improve the performance of your car right on your smartphone.
