On your Android device, you want to pair it to the ELM327.

This keeps the engine off but provides power to the accessories, including the OBDII port. Turn the key in the ignition to the 2 nd spot. It won’t work with the car ignition off, so you need to turn it on. Plug the ELM327 scanner into the diagnostic port. It is generally found under the steering wheel on the left-hand side.

If your car is compatible, you want to find the OBDII diagnostic port. This standard was only used in vehicles that are model year 1996 or later. You could also attempt some other sequential sets of numbers. If you can’t get the codes to work, you might need to reach out to support. Some other key codes that are commonly used include: The most commonly used with the ELM327 device is 1234. If you are unable to find the pairing code, you might try a generic option instead. Your ELM327 Bluetooth device includes a pairing code, along with the instructions needed to connect the equipment. It also appears to have limited capability. However, it isn’t going to read as many codes as the professional scanner does. This tool replaces the traditional code scanner and is less expensive. This information is transmitted to your device with the help of Bluetooth. It uses your compatible device to read the trouble codes from your engine’s computer. The ELM327 Bluetooth scan tool connects to your vehicle’s OBDII system to determine what’s wrong. ELM327 Bluetooth Scanner Alternatives What is the ELM327 Bluetooth Scan Tool?

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