In 50% of SAWDOC immobilisers MCU PIC18F252 is locked against reading.
Because of this TMPro cannot read data for to make key.
This software can unlock PIC18F252 , download connection diagram
To unlock PIC:Press Select and write memory device button.Unlocking procedure will begin. At end of procedure MCU is unlocked.
Ordering this software module requires you have TMPro Base hardware from before if you do not have this you need to order this also , you can find it here.