Ok.... if there is no one in the front seat (due to lack of weight) the passenger side air bag is turned off/ you also don't need to have the seat belt clicked on.
When you get to a certain weight... the passenger side air bag becomes active and it searches for a locked seat belt.
The weight of a couple shirts and a 10 lb nitrous bottle w/ 6 lbs of nitrous is enough to get a reading...... so the entire way to a local shop the car was beeping and yelling at me because I refused to click the seat belt on.
btw..... hi craig