Mac OBD2 scanner & ELM327 software

Run AIscanAuto on macOS to read OBD2 codes, monitor live data, and get AI explanations without switching to Windows. Works well when your daily driver computer is a MacBook or Mac mini in the garage.

ELM327 with Mac (Bluetooth or Wi‑Fi often easiest)

Many ELM327 Wi‑Fi and Bluetooth dongles pair cleanly with macOS; USB serial adapters may need a driver. AIscanAuto focuses on a consistent desktop UX so your Mac behaves like a full OBD2 scanner, not just a code reader.

Free OBD2 scanner experience on Mac

Get started with essential scanning and live PIDs, then scale up if you want AI depth or extended logging — a good fit for “free obd2 scanner software” shoppers who prefer macOS.

AI diagnostics on Mac

Translate DTCs into plain language and suggested checks. Handy for “ai car diagnostic app free” style searches when you want guidance, not only raw hex or PID tables.

P0420 and catalyst repair costs

If you landed here while researching P0420 , remember catalyst replacement quotes differ by vehicle region and labor rates — use the DTC page for a structured diagnostic path before you commit to parts.

Live data PIDs on Mac

Deep dive: OBD2 live data & PIDs explained — useful when you graph fuel trim or O2 sensors in AIscanAuto.