I’m not sure if this is the same problem you are having. But I swapped my seats from ones with airbags to ones without. When I did this it threw an airbag fault as it was missing two airbags. So to combat this fault you need to go buy a 2.2 ohm 1watt resistor from jaycar and either do a bodge and jam it into the two inner pins of the airbag plug or solder them into the wires that lead to those two inner pins. This tricks the computer into thinking it has airbags in the seats and stops the code. This worked on my 2011 fg falcon