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Getting Started with OBDAI

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Short answer: You need an OBD-II adapter (Bluetooth, Wi-Fi, or USB), a smartphone or computer running OBDAI, and a 1996+ gasoline or 2004+ diesel vehicle.

What You Need

Hardware

OBDAI requires an OBD-II adapter to communicate with your vehicle. The adapter plugs into your car’s OBD-II port (usually under the dashboard, near the steering column).

OBDAI officially supports OBDAI Gen 1 and Gen 2 hardware. These adapters are tested for reliable Bluetooth Low Energy (BLE) connections across all platforms and don’t have the aggressive power management issues common in generic adapters.

Shop OBDAI Hardware →

OBDAI may work with other ELM327-based adapters, but we cannot guarantee compatibility or provide support for third-party hardware.

Software

OBDAI is available on Android, iOS, and Windows.

Download OBDAI →

The link above detects your device and sends you to the correct app store.

Vehicle Compatibility

OBDAI works with:

  • Gasoline vehicles: 1996 and newer (US OBD-II mandate)
  • Diesel vehicles: 2004 and newer

This covers most passenger vehicles sold in the US, Canada, and Europe. Commercial trucks, motorcycles, and pre-1996 vehicles are not supported through the standard OBD-II port.

How to Connect

  1. Plug in your adapter. Insert the OBD-II adapter into your vehicle’s diagnostic port. The port is typically located under the dashboard on the driver’s side.


  2. Turn the ignition on. The vehicle doesn’t need to be running, but the ignition must be in the “On” or “Run” position (where the dashboard lights up).


  3. Open OBDAI and scan for devices. The app will search for nearby adapters. OBDAI hardware appears as “OBDAI” (Gen 1) or “OBD BLE” (Gen 2).


  4. Select your adapter and connect. If using Classic Bluetooth on Android, you may be prompted to pair the device first. BLE adapters connect without pairing.


  5. Wait for initialization. OBDAI will communicate with your vehicle’s computer to determine supported features. This takes 5–15 seconds depending on the vehicle.


Once connected, you’ll see live data from your vehicle on the dashboard.

How Do I Know I’m Connected?

When OBDAI successfully connects to your vehicle, you’ll see:

  • Live gauges moving — RPM, speed, coolant temp, and other values update in real-time
  • Vehicle info displayed — Your VIN, vehicle year/make/model appear in the app
  • “Connected” status — The connection indicator shows green or says “Connected”
  • No error messages — If you see live data without errors, you’re connected

If you see “Connecting…” for more than 30 seconds, something’s wrong. See “If Connection Fails” below.

If gauges show but values are zero or don’t change, make sure the vehicle ignition is ON (not just ACC) or try starting the engine.

If Connection Fails

Using OBDAI hardware? Contact us at support@obdai.app with your device type (Gen 1 or Gen 2), platform (Android/iOS/Windows), and vehicle year/make/model. We’ll help you get connected.

Using third-party hardware? We’re happy to try to help, but our support options are limited for devices we don’t manufacture. We can’t test or replicate issues with hardware we don’t have. For persistent connection problems with third-party adapters, you may need to contact your device manufacturer.

Common issues with OBDAI hardware:

  • Adapter not appearing in scan: Make sure the adapter is plugged in and the vehicle ignition is on. The OBD-II port provides power to the adapter.
  • Adapter appears but won’t connect: Try closing and reopening the app. On Android, ensure Bluetooth and Location permissions are granted.
  • Connects but shows no data: Some vehicles take longer to initialize. Wait 15-30 seconds. If still no data, the vehicle may have a blown OBD-II fuse.

What’s Next

After connecting, explore:

  • Dashboard — Real-time gauges for speed, RPM, coolant temperature, and more
  • Parameters — Access to 150+ sensor values your vehicle reports
  • Faults — Read and clear diagnostic trouble codes (DTCs)
  • Emissions — Check readiness monitors for smog testing
  • AI Assistant — Ask questions about your vehicle’s health in plain English

Activating Premium (If You Have a License Code)

If you purchased a bundle from our shop or Amazon, you have a license code to activate. There are two ways to do this:

The easiest way to activate — copy and paste your code instead of typing it on mobile.

Purchased from OBDAI Shop (obdai.app/shop):

  1. Open your browser and go to obdai.app/quickstart
  2. Sign in with the same account you use in the app
  3. Paste your license code: OBDAI-XX-XXXX-XXXX
  4. Click Activate — Premium activates immediately across all your devices

Purchased from Amazon:

  1. Open your browser and go to obdai.app/amazon-quickstart
  2. Sign in with the same account you use in the app
  3. Paste your license code: OBDAI-XX-XXXX-XXXX
  4. Enter your Amazon Order ID (found in your Amazon order confirmation)
  5. Click Activate — Premium activates immediately across all your devices

iOS users who purchased from the OBDAI Shop must use the web quickstart — Apple does not allow in-app license code entry.

Option 2: In-App Activation (Android & Windows only)

  1. Open OBDAI and sign in (or create an account)
  2. Tap the menu icon (☰) in the top-right corner to open the side panel
  3. Tap the “Upgrade to Premium” button (shows a crown icon)
  4. When asked “Do you have a license code?”, tap “Yes, I have a code”
  5. Enter your license code: OBDAI-XX-XXXX-XXXX
  6. For Amazon purchases, also enter your Amazon Order ID
  7. Tap Activate License — Premium activates immediately

Note: This option is not available on iOS due to Apple App Store policies.

How to know Premium is active

  • No more upgrade prompts or paywalls
  • Unlimited ARIA conversations (no daily cap)
  • The circular meter in the side panel shows a crown icon and says “UNLIMITED”
  • The upgrade button changes to “Manage Subscription”

Full activation guide: How to Activate Your OBDAI License

Video Tutorials

Watch the complete workflow from connection to report:

Part 1: From Connection to PDF Report in 15 Minutes — Connecting your scanner, running a drive test with ARIA, and generating your first diagnostic report.

Part 2: Web Dashboard & Custom Reports — Navigating the dashboard, viewing session data, generating custom reports, and using PRO features.

Hardware required. OBDAI is software — you need an OBD-II adapter to connect to your vehicle. Shop OBDAI Hardware →

Questions? support@obdai.app

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