4 pin Plug Adaptor for use with certain Honda motorbikes. This adaptor converts a standard 16 pin OBD2 type plug to the Honda 4 pin plug for plugging into the motorbike diagnostic socket. For data or ECU Flashing. Compatibility: For certain Honda motorbikes or similar. Note: Late 2020 year + Honda models may be using this 6 pin connection instead. You can also use it with a standard OBD2 diagnostic code reader (wired or wireless) for code reading, diagnostic data and resetting.