bf152490_Immobilizer___Ross_Tech_Wiki__Immobilizer_3
[0] ECU Swapping (Used) [Immobilizer 1 & 2] No PIN needed [Immobilizer 4] Original/Car PIN needed and Used ECU PIN needed [Immobilizer 5] N/A [Immobilizer 3] 
Original/Car PIN needed and Used ECU PIN needed
Immobilizer - Ross-Tech Wiki
Immobilizer 3