This adapter converts a standard 16-pin OBD2 socket to a Yama Haa 4-pin socket (Sumitomo 6188 0004) for connecting to your motorcycle diagnostic socket (Sumitomo 6180 4771). It works with various programs/applications as well as standard OBD2 readers. With this 4 pin to OBD2 adapter cable, you can connect your Yama ha motorcycle to an OBD2 diagnostic interface compatible with CANbus or ELM327 scanner. Please make sure the diagnostic interface is compatible and can be used with this OBD adapter before purchasing. This adapter converts a standard OBD2 16 pin plug into a Yama haa 4-pin socket (Sumitomo 6188 0004) for connecting to your motorcycle diagnostic socket (Sumitomo 6180 4771) Works with various programs/applications and even with standard OBD2 readers. With this 4 pin to OBD2 adapter cable, you can connect your Yama ha a motorcycle with a CANbus compatible OBD2 diagnostic interface or an ELM327 scanner Please make sure your diagnostic interface is compatible and can be used with this OBD adapter before purchase Before buying, please make sure the product interface shown in the picture is suitable for your car. If the item does not fit your car, it will be nice to contact us to help you.