Hello, I have an 2009 FJ

Hello, I have an 2009 FJ Cruiser (bought and imported from the States to Switzerland). Since I got it, the passenger airbag light is always on (in fact signaling that the passenger airbag is off). I can see it first on the main screen (just behind the wheel) and on the central console of the car. Both lights are on. My Toyota garage here in Geneva is unable to find the solution to take that light out, since they don't have the "plan" of the electrical system (network) of the car. Does that plan somewhere exist, to avoid my garage to completely dismantle the car and look after each cable and where it goes and for what purpose ? Thanks a lot in advance if you can help me on this. Alexandre Czech. Geneva. alexandre@baczech.ch. +41/22/7189400