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.

[lubu]

I just did some research found that in the event of a crash the ECU writes a crash code into one of the ICs, and thus the checkligh will always stays on.

The good thing is you can reset the ECU, I found these guys, looks like it's cheaper than buying one from toyota.

Here's a direct quote from Wiki:

The design is conceptually simple; a central "Airbag control unit"[12] (ACU) (a specific type of ECU) monitors a number of related sensors within the vehicle, including accelerometers, impact sensors, roadwheel speed sensors, gyroscopes, brake pressure sensors, and seat occupancy sensors. When the requisite 'threshold' has been reached or exceeded, the airbag control unit will trigger the ignition of a gas generator propellant to inflate a nylon fabric bag extremely rapidly. The inflated airbag reduces the deceleration experienced by the passenger during the crash. The bag has small vent holes, to allow the propellant gas to be slowly expelled, in a controlled manner from the airbag, as the force of the occupant pushes against it.

edit:typos

This post has been edited by lubu: Jun 4, 2008 - 12:05 PM