Lexus Smart Key Printed Circuit Board It can be used if it has the same shape as the one you have. However, it has only been imported and has not been registered or tested for operation. This is for those who have broken their key by water damage, locksmiths, etc. - Model: KEYDIY - Number of buttons: 4 - Circuit board type: Printed circuit board Thank you for viewing. It can be registered for 2 or 3 button models as well, and only the functions that are not assigned on the vehicle side will not be assigned.