Freelander 1 Drivers airbag removal fuse or battery?

tlo said:

Just wondering to remove the drivers airbag should I play it safe and disconnect the battery or could I just remove the fuse ?

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gstuart said:

hi

i’ve always disconnected the battery and then wait 30 x minutes

as a side note Never put a multimeter onto an airbag as u can set the airbag off

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Nodge68 said:

In theory that can't happen. The ignitor for the air bag takes a couple of Amps to trigger it. A DMM only puts out a few miliamps at most. However it's not considered safe practice to try it, as an uncontrolled airbag make a big mess.

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gstuart said:

ive never been brave or daft enough to find out, lol

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Nodge68 said:

When I was at one garage, we sent a lot of vehicles off to scrap. The scraper wouldn't take vehicles with un-triggered pyrotechnics (airbags and belt pre-tensioners). So when we had the insurance company authorisation to dispose of a vehicle, we had to trigger the pyros before it was loaded on the waggon. We used a starter pack (jump pack) to fire the pyros, simply by connecting long wires from the pyros to it. There's a pop or hiss as the pyros fire and all was safe. There's quite a spark on connection of the pyro, so obviously it needs current. This is current simply isn't available from a DMM.

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gstuart said:

bet that made u jump,lol

know what ur saying , but personally i still wouldn’t ever connect one to an airbag

i always thought they only needed around 4ohms to fire, but alas as you’ve tested it must req a lot more , think i’ve onky got a 9v battery in my meter

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Nodge68 said:

4 ohms at 12 Volts is 3 Amps. so there's no way a DMM should fire one. However there's no reason to measure an airbag with a DMM anyway. The wiring is the weak link in the system not the airbag.

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