How to Connect Obd2 to Android Head Unit

With the advancements in technology, cars are now equipped with various tools to ensure that they are functioning as they should. One of these tools is the On-Board Diagnostics (OBD) system, which helps drivers keep track of any issues with their vehicles. Android head units, on the other hand, are becoming increasingly popular and are being installed in many cars. They have a wide range of features, including Bluetooth, WiFi, GPS, video capabilities, and more. This post will discuss how to connect OBD2 to an Android head unit.

Video Tutorial:

Why You Need to Connect OBD2 to Android Head Unit

Connecting the OBD2 to an Android head unit can help keep track of various vehicle metrics, including fuel efficiency, engine performance, and diagnostics. The system can also provide real-time data readings, error codes, and warnings to save you time and money on repairs. Connection to an Android head unit gives you the added benefit of being able to read and view metrics directly on the screen of your head unit, without the need for additional apps or hardware.

Method 1: Using Bluetooth

Connecting your OBD2 to an Android head unit via Bluetooth is easy. Here are the steps:

1. Turn on the car, then the Bluetooth option on your Android head unit.
2. Put the OBD2 adapter in the corresponding socket of the car and turn on the ignition.
3. Open the Bluetooth settings on your Android head unit and look for the option to scan for devices.
4. Select the appropriate OBD2 device from the list of devices available and pair them.
5. Install a diagnostic app on your Android head unit, such as Torque, DashCommand, or OBD Car Doctor.
6. Open the app and confirm that the head unit is connected to the device. You should be able to see live data readings, error codes, and more on the screen, depending on the app.

Pros:
-Bluetooth connection allows for wireless use without the tangle of cords.
-Live readings from phone’s screen.
-Auto-connect through Bluetooth.

Cons:
-Connection sometimes drops.
-OBD diagnosis performance is inferior.
-Some functions may require an app.

Method 2: Using WiFi

Connecting your OBD2 to an Android head unit via WiFi is an excellent option for a stronger and faster connection. Here are the steps:

1. Turn on the car, and then the WiFi option on the Android head unit.
2. Put the OBD2 adapter in the corresponding socket of the car and turn on the ignition.
3. Open the WiFi settings on your Android head unit and look for the option to scan for networks.
4. Search for your OBD2 device and connect to it.
5. Install a diagnostic app on your Android head unit, such as Car Scanner, OBD Fusion, or OBDLink.
6. Open the app and confirm that the head unit is connected to the device via WiFi. You can now enjoy live data readings, error codes, and more on your screen, depending on the app.

Pros:
-WiFi has faster transfer speed, which makes this connection option more efficient.
-Supports faster and more reliable diagnostics.
-No additional app required on Android head units.

Cons:
-WiFi connection may take time to find the network.
-The distance of the connection is limited.
-OBD diagnosis performance is inferior.

Method 3: Using USB

Connecting your OBD2 to an Android head unit via USB requires a cable, but it is the most stable and reliable way to connect. Here are the steps:

1. Turn on the car and enable USB debugging on the Android head unit.
2. Put the OBD2 adapter in the corresponding socket of the car and turn on the ignition.
3. Connect the OBD2 adapter to the Android head unit via a USB-to-micro-USB cable.
4. Install a diagnostic app on your Android head unit, such as Carista, AlfaOBD, or OBDLink.
5. Open the app and confirm that connectivity between the head unit and OBD2 has been established.
6. Enjoy live data readings, error codes, and more on your Android head unit screen.

Pros:
-USB connection is the most stable among the three.
-It provides more reliable data transfer speed.
-Supports robust and accurate diagnosis.

Cons:
-It’s the least user-friendly option.
-Using a cable can be annoying.
-OBD diagnosis may be delayed.

What to Do If You Can’t Connect OBD2 to Android Head Unit

If you are struggling to connect your OBD2 system to your Android head unit, here are some fixes you can try:

1. Ensure that your Android head unit and OBD2 adapter are compatible with each other.
2. Confirm that you have paired or connected your OBD2 adapter to your Android head unit using the correct method (Bluetooth, WiFi, or USB).
3. Restart and reconnect the OBD2 adapter.
4. Make sure that the OBD2 adapter has power and is correctly placed in the vehicle.
5. Check your Android head unit settings to ensure that the app used for diagnosis has been authorized.

Bonus Tip

If you want to extend the life of your car, it’s essential to keep track of the metrics of various vehicle systems. Installing an OBD2 adapter and connecting it to your Android head unit is one of the easiest, most convenient, and most effective ways to do so!

5 FAQs

Q1: What kind of cars have OBD2 sockets?

A: All cars manufactured after 1996 in the United States are required to have an OBD2 socket. However, the OBD standard has been adopted globally, so most cars today have an OBD2 socket.

Q2: Will connecting an OBD2 adapter drain my car’s battery?

A: Although the OBD2 adapter is powered by the car battery, it consumes only a tiny amount of power, and you don’t have to worry about it running down the battery.

Q3: Are all Android head units compatible with OBD2 adapters?

A: Not all Android head units are compatible with OBD2 adapters. Please ensure that your Android head unit is compatible and can be connected via Bluetooth, WiFi, or USB.

Q4: Is an OBD2 adapter expensive?

A: No, OBD2 adapters range from $10 to $50. The price varies depending on the manufacturer, compatibility, and other features such as Bluetooth, WiFi, and USB.

Q5: What gauges can I read from an OBD2 adapter?

A: The gauges that you can read from an OBD2 adapter vary depending on the diagnostic app you are using and the features of your OBD2 adapter. Some common gauges that you can read include RPM, speed, fuel economy, engine temperature and pressure, and more.

Final Thoughts

Connecting your OBD2 system to your Android head unit can help you stay up-to-date on the condition of your vehicle. It is easy, affordable, and provides real-time and accurate data readings. Now that you know how to connect OBD2 to an Android head unit, you can make informed decisions about your vehicle’s care and maintenance.