Airbags and sensors, question Options

[MaskedMan]

I was just wondering how the airbag sensors on our Celicas operate. I've read up about different types of sensors, but I'm not sure which kind were used on our cars. Also, if the airbags were to deploy and the vehicle were to be repaired, is it nessecary to replace the airbag ECU as well or will it be alright to reuse the airbag ECU?

One more thing. What is the easiet way to remove the passenger side airbag? Is it required to remove the dash or is it accessable by removing the glove box?

Thank you.

[MaskedMan]

from what i heard and seen and tried...

YOu need to replace everything, including the dash. The reason is because when the passanger side air bag explodes it rips part of the dash. So it is required to change it also.


The two air bag sensors, air bag ecu, air bags need to be replaced...

Well it looks like the dash isn't ripped at all. Just the little rectangle cut out popped up and it might have cracked, but it's still in one piece.

I dont think you need to replace the airbag ECU, the ECU is responsible for the monitoring the sensors and if they tripped the ECU then provides power to the airbag for ignition. There for it doesnt receive any damage after the impact.

Well in my head I was thinking this. That maybe once the airbag ECU sends the signal to the airbags to deploy, it locks up and isn't able to be reset. But I'm not sure how exactly it works, or why we even need one. If the sensors alone can complete a circuit, and the only thing airbags need is power to deploy, then what exactly is the ECU's purpose? I suppose it's a safety device of some sort so that the airbags don't go off for no reason but, I'm very interested in how our system works. I guess I should have paid more attention in class that day, but I was too excited because I was waiting to detonate an airbag that day. It was my first time seeing an airbag deploy, so I was excited haha.

Thanks for your help Hanyo and lubu. If you have any more information that you think can help me with my airbag knowledge, then please share .