How to setup ELM327 WiFi Diagnostic Scanner on iOS Apps

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.

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.
3. 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.
4. 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.
5. Go to your App. Go to the settings menu to configure the scanner. You want to make sure the IP Address is and the Port is 35000. This information is normally setup automatically and nothing else needs to be done, but it’s a good idea to make sure the first time you’re setting it up.
6. Go to the App’s main page, start your first scan and enjoy seeing your engine’s available parameters.

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

  • Check to see if the LEDs are on. Some of the LEDs will flash to indicate an active Wi-Fi signal
  • If your ignition is not on, turn your car key to the 2nd turn to turn on the ignition and try again
  • Turn off your phone’s Wi-Fi in the settings and turn it back on

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.