The ELM327 Interface USB is a diagnostic tool that connects to the vehicle via the OBD-II (on-board diagnostics) interface and communicates with a computer (Windows, macOS or Linux) via a USB port. It enables the analysis of vehicle data, reading and deleting error codes and monitoring sensor data in real time.
Main features of the ELM327 USB adapter:
Connection type: Directly connected to a laptop or PC via USB.
Stable and fast data transfer compared to Bluetooth or Wi-Fi.
No connection failures or interference from external radio sources.
Supported OBD-II protocols: ISO 9141-2 (older European vehicles).
KWP2000 (Key-Word Protocol, often used in Asian cars).
CAN bus (ISO 15765-4) - standard for modern vehicles.
J1850 VPW/PWM (used by GM and Ford).
Functionalities: Read and clear trouble codes (DTCs):
Displays generic and manufacturer-specific codes (P0xxx, P1xxx, etc.).
Real-time data display: Displays sensor values such as engine temperature, mass air flow, fuel consumption, etc.
Vehicle performance monitoring: Measures acceleration, rpm, temperature and more.
Emissions testing: Checks emissions values for the general inspection (TÜV/DEKRA).
Maintenance reminders: Detects and stores vehicle maintenance information.
