Immobiliser system

my 2004 nissan serena has been shut down by the immobiliser device.How can i deactivate it?

my nissan serena is shut down by theimmpbiliser systemhow can i deactivate it? It seem to be affecting the gas pump

What’s that? Who did it and why?

If it is Nissan’s own immobilizer, then the dealership is your best source for this information. If the immobilizer is an after-market device, then you need to consult the shop that installed it. Since your Nissan model is not sold in the US, it is unlikely that people on this US-based board will have specific information on this car.