2022- Toyota BZ3 add key and all keys lost cannot be done via OBD. Here is the tip to program key for BZ3 with Xhorse tools.
Tools used:
XDNP10 eeprom adapter
Immo data is stored in the BCM module. We have to remove the BCM module under the dashboard on the driver side.
Be careful when removing the module.
Disassemble the BCM module.
Locate the eeprom chip 25640.
Desolder the chip and solder it to XDNP10 eeprom adapter.
Go to IMMO Programming- Toyota- Select by vehicle- BZ3- 2022 onwards- Smart key system (46).
Back up eeprom data.
Then write key using Xhorse XM38 smart key.
Program 2022- Toyota BZ3 Smart Key with Xhorse VVDI Key Tool Plus