How To Setup ELM327 Bluetooth Scanner With Android

This article will guide you on how to setup and pair your ELM327 Bluetooth OBD II scan tool on your Android device. You’ll be able to successfully work with all OBD II apps available in Google Play store.

OBD II Bluetooth Pairing

  • Make sure your car is OBD2 compatible. You can check our list of OBD2 compatible cars here
  • Locate your car’s OBD II diagnostic port and plug in your scanner. It’s usually found under the driver’s side dashboard, under the steering wheel.
  • Turn on your ignition by turning your key to the 2nd turn. The engine will be off, but this provides power to your dash lights, radio and also the OBD II diagnostic port.
  • From your Android Smartphone or tablet, go to your SETTINGS, then WIRELESS & NETWORKS, then BLUETOOTH SETTINGS. Turn on Bluetooth, scan for the nearby devices and pair your phone with the scanner. The name of the scanner will vary depending on the model.

Android Application Connection

  • Some scanners may require password to connect. For ELM327 products, the default password is 1234.
  • Open your preferred OBD-II app. Go to the Settings page and pair with the bluetooth scanner.
  • Make sure its connected and then go back to the App’s main menu to enjoy its features.

Bluetooth Pairing Issues:

  • Unpair any existing Bluetooth devices such as a headset or speaker
  • Make sure the App is not running in the background. Close the app before pairing
  • If the password 1234 doesn’t work, try 12345 or 0000
  • Turn off Bluetooth, turn it back on and rescan for the device

Android Application Connection Issues:

  • Make sure the paired OBD II scanner is selected within the app’s settings if it won’t connect
  • Restart the Application