Introduction to Car Scanner App

Car Scanner is a powerful diagnostic application that allows you to monitor your vehicle's performance and read diagnostic data in real-time. When paired with a WiCAN OBD adapter, it provides access to your vehicle's onboard diagnostic system through a WiFi connection.

Connecting the WiCAN OBD Adapter

1. Plug in the WiCAN Device

  • Insert the WiCAN adapter into your vehicle's OBD-II port.

2. Connect to WiCAN

You have two options to establish a connection:

  • WiCAN Access Point: Connect directly to WiCAN’s Wi-Fi hotspot.
  • Home Wi-Fi Network: Connect the WiCAN device to your local Wi-Fi network.

3. Configure the WiCAN Device

  • Open the WiCAN Device Configuration Page by navigating to its IP address in a web browser.
    • Default IP for WiCAN Access Point: 192.168.80.1
  • Set the protocol to ELM327.
  • (Optional) Disable MQTT and BLE to optimize performance.
  • Submit changes. The device will reboot after saving the configuration.

Setting Up the Car Scanner App

4. Configure the Adapter in Car Scanner

  1. Open the Car Scanner app and navigate to:
    Settings -> Adapter OBDII ELM327 -> WiFi.
  2. Fill in the adapter's IP and port:
    • If connected to your local Wi-Fi network: Use the assigned IP address.
    • If connected to the WiCAN Access Point: Use the default IP 192.168.80.1.
    • Port: 3333.
    • Alternatively, use the mDNS address displayed in the WiCAN Status tab:
      wican_xxxxxxxxxxxxxxxx.local.

5. Set the ECU Protocol

  1. Scroll down in Car Scanner settings and select:
    Advanced Settings -> ECU Protocol.
  2. Choose the protocol that matches your vehicle. WiCAN does not support "Auto Protocol Detection," so manual selection is necessary. Start with one of the following common protocols:
    • 6) ISO 15765-4 CAN (11 bit ID, 500 Kbaud)
    • 7) ISO 15765-4 CAN (29 bit ID, 500 Kbaud)
    • 8) ISO 15765-4 CAN (11 bit ID, 250 Kbaud)
    • 9) ISO 15765-4 CAN (29 bit ID, 250 Kbaud)

    If these don't work, try other protocols in the list through trial and error until successful.

Connecting to the Vehicle

6. Establish a Connection

  • Return to the Car Scanner app's main page and press Connect.

7. Verify the Connection

If successful, the app will display:

  • ELM Connection: Connected
  • ECU Connection: Connected

8. View Supported Sensors

  • Press All Sensors to check available data streams from your vehicle.

Notes and Tips

  • Always select the correct protocol manually, as WiCAN doesn’t support auto protocol detection.
  • For the best performance, ensure WiCAN is configured optimally (e.g., disabling unused features like MQTT and BLE).
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