What you need:

  • ELM327 Wi-Fi OBD2 Scanner
  • Apple iOS (iPhone/iPad/iPod) or Android Device (Phone or Tablet)
  • Car Diagnostic App for Android or iOS
  • SAFETY WARNING: Never start and run your engine inside of a closed garage. Always make sure there is good ventilation to prevent carbon monoxide poisoning. Carbon monoxide fumes are produced by your engine’s exhaust gases.

1. Locate your car’s OBDII diagnostic port and plug in your scanner. The location will vary on each car, but it’s usually found within arm’s reach under the driver’s side dashboard, under the steering wheel.  (Go here if you need help locating your OBDII Port)

2. 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 OBDII diagnostic port.

On your iPhone, iPad or iPod Touch, go to Settings, then Wi-Fi and connect to the scanner’s Wi-Fi signal. This is done in the same manner as connecting to your home WiFi Network. 

The name of the scanner will vary depending on the model: Examples would be OBDII, OBD-II, VLink, ELM327, OBD2, etc

Password (if needed): 12345678

3. Start your engine. Although the OBDII port is providing power to the scanner, in some cases you will not be able to retrieve any engine data without the engine running.

4. Open your preferred app. I will use the Torque app as an example. Go to the Settings page by pressing the Menu button on your device. Then go to “OBD2 Adapter Settings”, then “Choose Device”, and then select the connected WiFi Scanner. This step is critical because the App won't know to detect the ELM327 Scanner and it won't connect to the ECU!

5. Go back to the App’s main menu and it will begin establishing a connection with the scanner. All 4 icons will be solid blue when it’s connected (Torque).

If you cannot find the Scanner’s WiFi signal in Wireless Settings:

  • Make sure the scanner is plugged into the OBDII Port and ignition is on
  • Turn off your phone’s Wi-Fi in the settings and turn it back on
  • Unplug and plug in the Scanner from the OBDII port, then find the WiFi Signal

If you can connect to the WiFi signal, but cannot connect within the App:

  • Make sure the connection is configured within the App’s settings. The IP should be and the Port is 35000
  • In the iPhone settings, touch the blue arrow on the WiFi connection. By default, it will connect to the DHCP settings. Set it to Static and enter the IP Address “” and Subnet Mask to “”. Try again within the App.
  • Make sure the paired OBD2 scanner is selected within the app’s settings if it won’t connect (see step 4)