Side impact airbags

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vn5000
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Re: Side impact airbags

Post by vn5000 »

You cant just change the srs configuration in dash , if you do you will then get a configuration mismatch error between dash and srs module
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pman92
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Re: Side impact airbags

Post by pman92 »

The airbag module looks at airbag circuit resistance. They are typically around 2-3 ohms. If it's too low it will throw a code for a short circuit, if too high it will for open circuit (what yours is doing).
I'm not sure if your vehicle does but certainly a lot of vehicles also measure circuit capacitance. If it's out of spec it will throw a code also.

It may be possible to trick the module by installing a resistor and a capacitor of the correct size in place of the air bag. Live data from a scan tool should show measured resistance and capacitance.
This however is unroadworthy and I wouldn't recommend it.
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hsv08
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Re: Side impact airbags

Post by hsv08 »

vn5000 wrote:You cant just change the srs configuration in dash , if you do you will then get a configuration mismatch error between dash and srs module
By the looks of tazzis software I think it allows the change? I've emailed him in regards to his product though.
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Gareth
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Re: Side impact airbags

Post by Gareth »

hsv08 wrote:
vn5000 wrote:You cant just change the srs configuration in dash , if you do you will then get a configuration mismatch error between dash and srs module
By the looks of tazzis software I think it allows the change? I've emailed him in regards to his product though.
I'd love to know this for sure, this may help with custom jobs I've done in the past

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hsv08
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Re: Side impact airbags

Post by hsv08 »

pman92 wrote:The airbag module looks at airbag circuit resistance. They are typically around 2-3 ohms. If it's too low it will throw a code for a short circuit, if too high it will for open circuit (what yours is doing).
I'm not sure if your vehicle does but certainly a lot of vehicles also measure circuit capacitance. If it's out of spec it will throw a code also.

It may be possible to trick the module by installing a resistor and a capacitor of the correct size in place of the air bag. Live data from a scan tool should show measured resistance and capacitance.
This however is unroadworthy and I wouldn't recommend it.

Yea I think the systems airbag resistance is around 2ohm. Although looking at tazzis software there is also a capacitance value as well.
I was thinking of the same idea with a resistor and a low amp fuse.
I can get a hold of a tech2 to change the airbag number but this is a last resort.
If it were ther steering wheel or dash airbag then there would be no disabling or playing with. But seeing as though there only side impact and the vx came out of factory as a optional extra ( obviously mine wasn't optional being the berlina but there are execs without them)
And again if I wanted to I could throw race seats in and just get a cert and she's all good. The equivalent to your "roadworthy" here is pretty simple.
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Jayme
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Re: Side impact airbags

Post by Jayme »

I was under the impression that this part of tazzis dash software was intended to be used to move a dash to a new car, then change the dash to match the airbag module of that car,
not to remove aribags from an existing car like you are trying to do ........
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Tazzi
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Re: Side impact airbags

Post by Tazzi »

Jayme wrote:I was under the impression that this part of tazzis dash software was intended to be used to move a dash to a new car, then change the dash to match the airbag module of that car,
not to remove aribags from an existing car like you are trying to do ........
Spot on.

Its not made to try trick the cars system or modify the airbag system. For that 1% chance that you will be needing those airbags, I would want to hope my airbags correctly deploy to save both me and passengers. Short answer, I would simply put the original seats back in...
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Gareth
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Re: Side impact airbags

Post by Gareth »

In Australia, if a vehicle was built with side airbags then it must be fitted with side airbags to comply with Australian road laws, reguard less of whether or not it is an option for said vehicle. I don't see why any engineer in the world would approve the removal of a restraint system...


Im not having a go at your choices, just making sure anyone who reads this is informed :thumbup:
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hsv08
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Re: Side impact airbags

Post by hsv08 »

Tazzi wrote:
Jayme wrote:I was under the impression that this part of tazzis dash software was intended to be used to move a dash to a new car, then change the dash to match the airbag module of that car,
not to remove aribags from an existing car like you are trying to do ........
Spot on.

Its not made to try trick the cars system or modify the airbag system. For that 1% chance that you will be needing those airbags, I would want to hope my airbags correctly deploy to save both me and passengers. Short answer, I would simply put the original seats back in...
So just to clarify. Your software will not allow changing of airbag numbers?
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hsv08
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Re: Side impact airbags

Post by hsv08 »

Biggvl wrote:In Australia, if a vehicle was built with side airbags then it must be fitted with side airbags to comply with Australian road laws, reguard less of whether or not it is an option for said vehicle. I don't see why any engineer in the world would approve the removal of a restraint system...


Im not having a go at your choices, just making sure anyone who reads this is informed :thumbup:
Yeah our rules over here in NZ are quite flexible given what Australia goes through.exposed Pod filters, tunnel Rams out the bonnet, half cages, 20s on cars that came with 15s, bucket seats, side exit exhausts (withen reason) all are pretty much allowed and if not it can be rectified by paying 500 bucks for a cert plate.

If the base model of my vehicle didn't come with airbags in the seats then I don't see it being a huge issue that my (tiny bit higher spec) berlina had them. It's the same vehicle..
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