Best bet is to have a shop with a scanner (needs to be compatible with Ford SRS) scan and see what the fault code(s) is. Any battery problems recently? ....... Remember, when light is on (primary , not pass. airbag) the system is disabled. It is NOT the passenger airbag light , correct?
It is the passenger seat airbag light that is on. code is B2290.TECH RECALIBRATED THE SEAT AND CLEARED THE CODE.Battery is fine. light was on this morning going to work. To night going home it was off.