Connection Help


Setup Assistant

The Setup Assistant provides an easy way to setup and connect a new adapter. You can open the Setup Assistant by pressing the Set Up New Adapter button on the Settings page. The remainder of this page provides step-by-step instructions for setting up an adapter manually instead of using the Setup Assistant.


Wi-Fi

  1. Connect your adapter to your vehicle and turn the vehicle ignition to ON. Turning the ignition to accessory mode will not work. If your vehicle has a push button ignition, pushing the button twice with your foot off the brake will turn the ignition ON for most vehicles.
  2. Open the Wi-Fi settings on your iOS device.
  3. Enable Wi-Fi if it is not already enabled.
  4. Select the network corresponding to your Wi-Fi adapter.

  5. OPTIONAL: This step is only required if you want internet access over the cellular network when connected to your Wi-Fi adapter.
    • Select the blue information icon to edit the details of the Wi-Fi network.

    • Scroll down to the IPV4 Address section. Select Configure IP to open the Configure IPv4 Screen, then select Manual from the list of options. Enter an IP address and Subnet Mask for the Wi-Fi network. You must know the IP address of your adapter to continue. Most ELM Wi-Fi adapters use the IP address 192.168.0.10. You must set the IP address of your iOS device to a different value than the IP address of your adapter. We recommend adding 1 to the last number of the IP address (e.g. 192.168.0.11). Set the Subnet Mask to 255.255.255.0. Press Save in the top-right corner of the screen.

  6. Open OBD Fusion and select Settings > Preferences > Communications.
  7. Under Communication Type, select Wi-Fi.
  8. Under the Wi-Fi Settings category, select Device, then select your Wi-Fi adapter from the list. For most adapters, select ELM327 Generic. If you do not see your adapter listed or it uses a non-standard IP address or Port, select Custom.
  9. If you selected Custom in the previous step, you must set the IP address and Port number of your Wi-Fi adapter in OBD Fusion. Refer to the documentation for your Wi-Fi adapter to determine the IP address and Port number. Most ELM 327 Wi-Fi adapters use the IP address 192.168.0.10 and Port 35000, which will be used if you selected ELM327 Generic in the previous step.
  10. Press the back button on the top-left to return to the OBD Fusion home page.
  11. Press the connect button to connect to the vehicle.
  12. NOTE: When connecting for the first time, you might be prompted to allow OBD Fusion to find and connect to devices on the local network. Press the OK button to permit access. The first connection attempt might fail. Press the connect button again to connect to your adapter.
    • You can also enable access on the iOS Settings > OBD Fusion page by enabling the Local Network permission.


Bluetooth LE

OBD Fusion has built-in support for a number of Bluetooth LE adapters. If your adapter is supported, OBD Fusion will automatically find it when you connect. If your adapter is not supported, contact our support team to inquire about adding support.

  1. Open the iOS settings app and enable Bluetooth. Do NOT try to pair your adapter in the iOS Bluetooth Settings, as that is not required for Bluetooth LE adapters.

  2. Connect your adapter to your vehicle and turn the vehicle ignition to ON. Turning the ignition to accessory mode will not work. If your vehicle has a push button ignition, pushing the button twice with your foot off the brake will turn the ignition ON for most vehicles.
  3. Open OBD Fusion and select Settings > Preferences > Communications.
  4. Under Communication Type, select Bluetooth LE.
  5. Press the back button on the top-left to return to the OBD Fusion home page.
  6. Press the connect button to connect to the vehicle.
  7. NOTE: When connecting for the first time, you might be prompted to allow OBD Fusion to use Bluetooth. Press the OK button to permit access. The first connection attempt might fail. Press the connect button again to connect to your adapter.
    • You can also enable access in the iOS Settings > OBD Fusion by enabling the Bluetooth permission.

OBD Fusion will search for compatible adapters that are within range, so there is no need to pair the adapter with your iOS device.


Bluetooth MFi

This option requires an adapter that supports Bluetooth MFi such as OBDLink MX+.

  1. Connect your adapter to your vehicle and turn the vehicle ignition to ON. Turning the ignition to accessory mode will not work. If your vehicle has a push button ignition, pushing the button twice with your foot off the brake will turn the ignition ON for most vehicles.
  2. Open the iOS settings app and enable Bluetooth.

  3. Press the button on your adapter one time to broadcast Bluetooth. The blue LED will blink fast.
  4. Pair your adapter when it appears in the Bluetooth device list.

  5. Open OBD Fusion and select Settings > Preferences > Communications.
  6. Under Communication Type, select Bluetooth MFi.
  7. Press the back button on the top-left to return to the OBD Fusion home page.
  8. Press the connect button to connect to the vehicle.