How-to: Unlock VW Passat b7 USA model ID48 key with Xhorse VVDI Key Tool Plus using Eeprom dump.
Procedure:
Read transponder information. You can see it is locked.
Go to IMMO Programming-> VW->Select by type -> 4th immo system-Volkswagen-> Instrument with NEC+ 24C64 (2013-)-> Start Progrfamming-> More Functions-> Unlock Key
Put the locked id48 key to key tool plus coil and hit OK.
NOTE: This function does not support unlocking KeylessGo type, electronic 48 transponder, or key made by other device.
Unlock key success.
Read the transponder information again. Now you can see it is unlocked.
Now you can program the key to other cars.