01 · CONNECT
Pair your ELM327
Pair a compatible classic Bluetooth ELM327-style adapter in Android settings, then connect from BTK-Auto.
Android vehicle diagnostics
Diagnose from your phone with BTK-Auto
Connect a compatible Bluetooth ELM327 adapter, run a free read-only Basic Scan, and unlock advanced diagnostics and supported service functions with Full Access.
Vehicle communication stays on your Android device. The website handles account access, billing, licence verification and APK delivery.
Start read-only. Upgrade when you need more.
02 · SCAN
Run Basic Scan free
Read standard stored and pending OBD-II fault codes plus VIN, MIL status and voltage when your vehicle exposes them. Basic Scan performs no writes.
03 · UNLOCK
Activate Full Access
Full Access adds advanced module diagnostics, live values, supported service functions, controlled writes, backup/restore and workshop reporting.
European vehicle diagnostics
Built for the mixed fleets seen across Europe
BTK-Auto is positioned for drivers, independent garages and mobile mechanics working on the varied brands and model years common across European roads. The Europe hub explains the workflow, market coverage and compatibility limits without pretending every ECU is identical.
Explore BTK-Auto for Europe →Compatibility without fake promises
Advanced automotive functions vary by vehicle, ECU, protocol and adapter. BTK-Auto does not claim dealer-tool parity or universal write support. Check the capability matrix for exactly what is implemented and where compatibility can vary.
Read the full capability matrix →