I'll get to the real question, but first I need to give a little background, so bear with me.
I am not terribly experienced with working on cars, but recently I have been trying to do more things myself or with free assistance from others, as hiring a mechanic to do the work is expensive...
Anyway, the left front window regulator and motor in my '94 Camry died recently, and I have obtained a replacement part for it. I also have the Haynes repair manual for 92-96 model Camrys, and tonight my father-in-law is going to give me a hand in replacing the part. He is an experienced mechanic, but hasn't worked on a Toyota before.
I was going over the procedure for replacing the window glass regulator, and there is a note about disconnecting the battery before doing the work. It says,
"On 1993 and later models, the airbag system will be disabled if the battery is disconnected for more than a brief period. If the airbag light comes on and stays on after the battery is reconnected, the vehicle must be taken to a dealer to have the system reset with a special tool."
It's not clear exactly what a "brief period" is... so what I'm trying to figure out is how long that "brief period" is, and what I could do to prevent the airbags from being shut off. Obviously I would like to avoid taking my car to the dealer if possible.