[QUOTEI would not say either point is true, the seatbelts are not linked to the Airbag ECU in anyway, they are mechanical. On the Mk2 there is a wire near the front seatbelts but that is a deceleration satel-lite sensor. You should get the airbag system checked if the light is on im not saying do not, but I am saying the system works in a safe mode under certain conditions with the error light on. For example when the passenger presence detector fails the whole airbag system is armed and the warning light is on.[/QUOTE]
Suggest you check. Fiat advise that if the airbag dash light is on you won't have airbags working. Also if you have seatbelt pretensioners they are electric powered: certainly are on my Barchetta, ditto Coupe and Stilo. Perhaps the Punto is different..electric not mechanical and fired by the airbag ecu.