OK, I feel sorry for all you guys. Am I the only one In Australia who knows how to fix this problem?
Here's the deal. Now listen carefully kids cause I've had this done so I now have 2 keys where I had only 1.
Nissan AUS is gonna rape you with a $500 price Tag for each key. They have to bring them in from Japan, it's the only way.
People talking about removing the comp, it's garbage. You can remove the engine comp, the ignition barrel and the security sytem and it won't do squat. There is another comp in the car that changes the key codes every time you start the car.
Now, if you are unlucky like me and didn't get the code, I got in contact with Nissan Japan and they told me how to get it.
I have added an attachement with instructions from Nissan Japan on how to get the BCM code. Then email that code to Nissan Japan and they will give you the PIN. Don't bother talking to Nissan Australia about this cause they won't help you and won't talk to Nissan Japan. I know, I tried.
Once you have the code, any local Nissan dealer with the CONSULT system will be able to duplicate the key. You will need to bring the originals as well cause they all have to be redone.
Sorry about the stabs, but evryone here was making wild guesses rather then trying to solve old mates problem. I couldn't take it anymore.
BCM_Nissan_Skyline.pdf