Plug your ELM327/OBDLink adapter into your car's OBD2 port.
The safest, most secure way to obtain the software is through official channels. The developers offer a free trial/demo version of the software so you can test compatibility before buying a full VIN license. Step-by-Step Installation Guide: appcar diagfca free download link
Everything You Need to Know About Appcar DiagFCA: Capabilities and Official Access Plug your ELM327/OBDLink adapter into your car's OBD2 port
It operates via a Windows-based computer interface paired with a compatible OBD2 adapter. Appcar DiagFCA Key Features appcar diagfca free download link