Guide to program smart key on a Lexus GS 450h under all keys lost situation using Tango key programmer and emulator by OBD. Device need: Tango Transponder Programmer Scorpio-LK Emulators SLK-03 for Tango with Authorization Smart keys to be programmed Procedure: Connect Automotive Key Programmer Tango transponder programmer with vehicle via OBD socket Insert SLK-03 emulator into Tango Open laptop and start Tango.exe Click on Transponder icon and read the emulator Select TangoPlus software tab->Toyota Click “Connect to Car” Connect okay Select “Read data from car” Reading eeprom… Save eeprom bin file Keys 88 has been detected. Use SLK-03 transponder. Select a key position Click “Write emulator” Specify SLK-03 tranponsder Emulator now is ready. Attach the SLK-03 emulator to the Start button Dashboard turns on Press on Start once and attach SLK-03 emulator to Start button again Immo indicator flashes. Tango Key Programmer ...