This module can be used in 2 ways:1.If you don`t know 12-digit PIN code:Memory device is serial eeprom 93c66 SMD8 package.Expected file size is 512 bytes.Module calculates PIN code.Use PCF7936 or Silca T14 – JMA TP12 transponder.Written transponder have to be matched with car using diagnostic device.2.If you know 12-digit PIN code:Start software and select module.Insert PCF7936 or Silca T14 – JMA TP12 transponder.Press PROG button. Software opens box, where you must enter 12-digit PIN code.Verify it and press OK.Match prepared transponder with car using diagnostic device and PIN code.Vehicles equipped with this unit:Renault: Kangoo(2002-2007), Twingo(2002-2007), Trafic(2002-2007), Master(2002-2007)Opel: Vivaro(2002-2007), Movano(2002-2007)Nissan: Interstar(2002-2007) Electronic delivery only!