AUTOOL OBD2 Breakout Box OBDII Protocol Detector for Monitoring Signals of Protocol/Power/Grounds, ECU Connector with Multi-Function Jumper 120Ω, OBD Diagnostic Port Tester CAN Test Box

【Multi-protocol Compatibility】Supports multiple communication protocols including SAE-J1850, ISO 9141-2, ISO 14230-4, and CAN bus (ISO 15765-4), ensuring broad compatibility with mainstream vehicle models in the U.S. market. The OBDII Breakout Box can be easily connected directly to the vehicle’s on-board data link, providing straightforward access to the vehicle’s data bus line. 【Full-pin Visual Monitoring】Built-in LED indicators provide real-time display of power and ground status at the OBD-II interface, enabling quick diagnosis of basic electrical issues. Equipped with an OLED display, it supports switching between real-time voltage readings for any pin via up/down keys, ensuring precise monitoring of communication line status.