Plug in the Nanocom with the ignition OFF. Go to BeCM, Utilities, Disarm, type in the EKA and Enter. That should give a message saying code sent to engine or something similar and it should have turned the immobiliser off. The Nanocom documentation says that this will only work on a car with BeCM firmware V36 or later but I have a 96 HSE here and it works with that even though the info tells me that the BeCM has firmware V33.
Once in the car you should be able to unlock the door with the sill button unless it is superlocked so you can get the door card off.
Once in the car you should be able to unlock the door with the sill button unless it is superlocked so you can get the door card off.