For Toyota vehicles, this dummy OBD port enhances key security by simulating a functional OBD interface. When a device is connected to the dummy port, it appears active but transmits no data, preventing unauthorized vehicle access via the OBD port. Plug-and-play installation—no tools or coding required. Designed specifically for Toyota OBD ports, the unit features authentic materials: wiring wrapped in canvas tape matching Toyota’s original harnesses and bi-colored wires for seamless visual integration. Installation involves removing the lower dashboard panel (secured with clips), disconnecting the original OBD port, and connecting the dummy unit in its place. The black male connector on the dummy plugs directly into the vehicle’s OBD port. The dummy unit can then be relocated discreetly and secured to the vehicle’s wiring loom using the included cable ties to maintain a factory-like appearance. Unlike many aftermarket devices, this dummy port does not interact with vehicle systems—it provides no power, signal, or communication. It cannot disable alarms, program keys, or emulate key presence. Its sole function is to deter unauthorized OBD-based access attempts. As modern vehicles become increasingly connected, the OBD port presents a potential entry point for unauthorized data access. This device has undergone independent testing to confirm it introduces no interference or adverse effects on vehicle operation when installed correctly. Typical installation time is approximately 15 minutes for users familiar with interior trim removal.