{"id":24867,"date":"2026-08-11T12:22:57","date_gmt":"2026-08-11T12:22:57","guid":{"rendered":"https:\/\/www.obd2tool.com\/blog\/?p=24867"},"modified":"2026-08-11T12:22:57","modified_gmt":"2026-08-11T12:22:57","slug":"how-to-use-piwis-4-wifi","status":"publish","type":"post","link":"https:\/\/www.obd2tool.com\/blog\/how-to-use-piwis-4-wifi\/","title":{"rendered":"How to Use the Wi-Fi Function with Porsche PIWIS 4"},"content":{"rendered":"
This guide explains how to connect a Porsche PIWIS 4 diagnostic interface to a laptop over Wi-Fi for wireless vehicle diagnostics.<\/div>\n

Step 1 \u2014 Connect PIWIS 4 to the Vehicle<\/h2>\n
    \n
  1. Disconnect the USB cable from the PIWIS 4 interface.<\/li>\n
  2. Connect the vehicle communication cable to the bottom connector of the PIWIS 4.<\/li>\n
  3. Connect the diagnostic cable to the vehicle.<\/li>\n
  4. Switch the vehicle ignition ON.<\/li>\n<\/ol>\n
    Wait until the PIWIS 4 powers up and its indicator lights become active.<\/div>\n
    \"\"\"\"<\/p>\n<\/div>\n
    \n

    Step 2 \u2014 Connect the Laptop to the PIWIS 4 Wi-Fi Network<\/h2>\n
    Once the PIWIS 4 is powered on:<\/div>\n
      \n
    1. Open the Wi-Fi network list on the diagnostic laptop.<\/li>\n
    2. Look for a Wi-Fi network whose name matches the serial number of the PIWIS 4 interface.<\/li>\n
    3. Select that network and connect to it.<\/li>\n
    4. Enter the Wi-Fi password.<\/li>\n<\/ol>\n
      According to this setup, the password may be:<\/div>\n
      12345678<\/div>\n
      or<\/div>\n
      123456789<\/div>\n
      If one password does not work, confirm the correct Wi-Fi password supplied with your specific PIWIS 4 unit.<\/div>\n
      \"\" \"\"<\/div>\n
      \n

      Step 3 \u2014 Restart the PIWIS Diagnostic Software<\/h2>\n
      After the laptop is connected to the PIWIS 4 Wi-Fi network:<\/div>\n
        \n
      1. Close the PIWIS diagnostic software completely.<\/li>\n
      2. Launch the software again.<\/li>\n
      3. Check the communication\/interface status.<\/li>\n
      4. Confirm that both required connection checks show Passed or a normal connected status.<\/li>\n<\/ol>\n
        If both checks pass, the PIWIS 4 should be ready for wireless vehicle diagnosis.<\/div>\n
        \"\"<\/div>\n
        \n

        Quick Connection Checklist<\/h2>\n
        Before starting diagnostics, confirm:<\/div>\n