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Author Topic: Airbags self deployment  (Read 3661 times)

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106pete

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Airbags self deployment
« on: 21 April 2018, 09:25:41 »

I’ve recently got my Omega back on the road and so far I’ve had both seat air bags replay for no reason!

First was the drivers side I was moving cars on the drive, jumped out n shut the door only to the first latch, didn’t slam. When I got back the cars full of smoke n a airbag sticking out of the seat!

A few days later just driving back from petrol station and a massive bang, the passengers seat has deployed aswell! No one in it so shouldn’t have gone off anyway.

I gingerly drive the car back expecting more airbags and disconnected the battery then the airbag ecu. I’m hoping this will stop any more goin off but I can’t really see anything wrong with the ecu.

Has anyone else ever had this before?
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TheBoy

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Re: Airbags self deployment
« Reply #1 on: 21 April 2018, 09:52:07 »

Nope, never seen that (outside of a real accident).

IIRC, the seat ones are only triggered by the door sensors, so has anyone been pissing around in the doors, either around the sensor, or the riveted plate that the sensor uses?

If driving, its probably possible bumps might set up, especially if the car is rock hard.
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danzigfan

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Re: Airbags self deployment
« Reply #2 on: 21 April 2018, 10:32:06 »

It hapened to me few years back on my 2.0 estate...Just leaned the door on first click and went upstairs. Side airbag deployed when I got back.
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106pete

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Re: Airbags self deployment
« Reply #3 on: 21 April 2018, 16:21:38 »

Nope, never seen that (outside of a real accident).

IIRC, the seat ones are only triggered by the door sensors, so has anyone been pissing around in the doors, either around the sensor, or the riveted plate that the sensor uses?

If driving, its probably possible bumps might set up, especially if the car is rock hard.

I assumed that would be the senor in the door to triger them but nothing has been touched on the doors and I was on smooth bit of road while driving. Nothing’s changed suspension wise in the last few thousand miles so can’t go blaming that really.

I’ll see if I can get into the ecu later, I was wondering if my water leak behind the dash has got into the ecu but it’s no where near that area!
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106pete

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Re: Airbags self deployment
« Reply #4 on: 21 April 2018, 16:22:16 »

It hapened to me few years back on my 2.0 estate...Just leaned the door on first click and went upstairs. Side airbag deployed when I got back.

Did you ever find out why or fix the problem?
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Doctor Gollum

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Re: Airbags self deployment
« Reply #5 on: 21 April 2018, 17:00:48 »

Any buggering about on the seat wiring/wrong seats etc?
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TheBoy

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Re: Airbags self deployment
« Reply #6 on: 21 April 2018, 18:24:56 »

It hapened to me few years back on my 2.0 estate...Just leaned the door on first click and went upstairs. Side airbag deployed when I got back.
I could possibly understand that, if the door was banging/vibrating on the catch.
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TheBoy

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Re: Airbags self deployment
« Reply #7 on: 21 April 2018, 18:26:23 »

Nope, never seen that (outside of a real accident).

IIRC, the seat ones are only triggered by the door sensors, so has anyone been pissing around in the doors, either around the sensor, or the riveted plate that the sensor uses?

If driving, its probably possible bumps might set up, especially if the car is rock hard.

I assumed that would be the senor in the door to triger them but nothing has been touched on the doors and I was on smooth bit of road while driving. Nothing’s changed suspension wise in the last few thousand miles so can’t go blaming that really.

I’ll see if I can get into the ecu later, I was wondering if my water leak behind the dash has got into the ecu but it’s no where near that area!
Doubt it'll be wet, unless you've been pour drinks over it.

If you can read the ECU, it will tell you why, but I suspect the door sensor has triggered it.
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Kevin Wood

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Re: Airbags self deployment
« Reply #8 on: 22 April 2018, 01:01:13 »

I thought that, once the ECU has deployed an airbag, it effectively logged a code and then bricked itself? I.E. it's designed to be a single-use device.
The fact that it's popped an airbag on two occasions makes me wonder if it did actually get triggered by the ECU deliberately. :-\
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Chazza12

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Re: Airbags self deployment
« Reply #9 on: 22 April 2018, 06:42:26 »

is it this part Airbag shock sensor GM09173205 or GM09173929 /both/all(more numbers listed) just seem to be 2 pins. could it be a lose connection ?
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Re: Airbags self deployment
« Reply #10 on: 22 April 2018, 06:45:04 »

A short in the loom might do it...

Have the pretensioners fired?
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TheBoy

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Re: Airbags self deployment
« Reply #11 on: 22 April 2018, 08:48:05 »

I thought that, once the ECU has deployed an airbag, it effectively logged a code and then bricked itself? I.E. it's designed to be a single-use device.
The fact that it's popped an airbag on two occasions makes me wonder if it did actually get triggered by the ECU deliberately. :-\
I believe that's for frontal impacts, when the main airbags/pretensioners fire.

I get a feeling that side impacts don't do this...  ...but not brave enough to test ;D
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Lazydocker

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Re: Airbags self deployment
« Reply #12 on: 22 April 2018, 10:15:41 »

I thought that, once the ECU has deployed an airbag, it effectively logged a code and then bricked itself? I.E. it's designed to be a single-use device.
The fact that it's popped an airbag on two occasions makes me wonder if it did actually get triggered by the ECU deliberately. :-\
I believe that's for frontal impacts, when the main airbags/pretensioners fire.

I get a feeling that side impacts don't do this...  ...but not brave enough to test ;D

What’s the worst that can happen :-X ::)
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dave the builder

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Re: Airbags self deployment
« Reply #13 on: 22 April 2018, 10:32:18 »

I've a dented spare driver door here (just swapped for un-dented version)
I will strip it out in the next few weeks and see what sensors /goodies are inside soon and report back
(unlesss blinded by airbag dust ,unable to see computer screen  ::))
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TheBoy

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Re: Airbags self deployment
« Reply #14 on: 22 April 2018, 17:12:01 »

I thought that, once the ECU has deployed an airbag, it effectively logged a code and then bricked itself? I.E. it's designed to be a single-use device.
The fact that it's popped an airbag on two occasions makes me wonder if it did actually get triggered by the ECU deliberately. :-\
I believe that's for frontal impacts, when the main airbags/pretensioners fire.

I get a feeling that side impacts don't do this...  ...but not brave enough to test ;D

What’s the worst that can happen :-X ::)
You offering your car ::)
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