Xantos and Xantia madness

Tell us your ongoing tales and experiences with your French car here. Post pictures of your car here as well.

Moderators: RichardW, myglaren

User avatar
xantos
Posts: 409
Joined: 02 Apr 2013, 10:05
x 7

Re: Xantos and Xantia madness

Post by xantos »

Now that I've changed the seats my side airbag light warning light is on (as expected). As far as I know activa seats don't have side airbags (or do they :shock: ). At least there are no markings on side plastics or on cloth... Is there a way to disable it with Lexia?
User avatar
CitroJim
A very naughty boy
Posts: 43888
Joined: 30 Apr 2005, 23:33
x 1782

Re: Xantos and Xantia madness

Post by CitroJim »

S1 and very early S2 ones don't.

It should be possible to 'fool' the side airbag ECUs with small resistors as dummy airbags but I have no clue as to the correct value of resistor to use...
User avatar
xantos
Posts: 409
Joined: 02 Apr 2013, 10:05
x 7

Re: Xantos and Xantia madness

Post by xantos »

I'm not home at electronics, but correct me if I'm not thinking correct... Is it possible that if I measure the resistance of side airbags in the old seats and then "fool" the ECU with the same resistance... I don't want to play to much with airbag ECU so that I don't accidentally trigger the front airbags :shock:
User avatar
Stickyfinger
Donor 2016
Posts: 9892
Joined: 28 Mar 2013, 22:05
x 738

Re: Xantos and Xantia madness

Post by Stickyfinger »

I used 2.2Ohm ones in my old Mk1 C5.....got them off the interweb
BenC5HDi
Not Mike
Posts: 588
Joined: 30 Nov 2015, 21:21
x 33

Re: Xantos and Xantia madness

Post by BenC5HDi »

2.2ohms..

Sent from my SM-N9005 using Tapatalk
User avatar
CitroJim
A very naughty boy
Posts: 43888
Joined: 30 Apr 2005, 23:33
x 1782

Re: Xantos and Xantia madness

Post by CitroJim »

BenC5HDi wrote:2.2ohms..
Excellent :D Very valuable to know =D>
User avatar
xantos
Posts: 409
Joined: 02 Apr 2013, 10:05
x 7

Re: Xantos and Xantia madness

Post by xantos »

Great! Thank you! So just wiring a 2.2ohm resistor between wires should do the trick...
User avatar
CitroJim
A very naughty boy
Posts: 43888
Joined: 30 Apr 2005, 23:33
x 1782

Re: Xantos and Xantia madness

Post by CitroJim »

xantos wrote:Great! Thank you! So just wiring a 2.2ohm resistor between wires should do the trick...
Yes, absolutely...
RichardW
Forum Treasurer
Posts: 9607
Joined: 07 Aug 2002, 17:12
x 477

Re: Xantos and Xantia madness

Post by RichardW »

xantos wrote: Is it possible that if I measure the resistance of side airbags in the old seats and then "fool" the ECU with the same resistance...
What ever you do, don't do that - the voltage from the meter may be enough to fire the airbag..... :shock:
BenC5HDi
Not Mike
Posts: 588
Joined: 30 Nov 2015, 21:21
x 33

Re: Xantos and Xantia madness

Post by BenC5HDi »

Here's a thing that's baffling me at the moment with regards to airbags and pretensioners - I'm having issues with mine. Anyway, advice is always to disconnect the battery before messing with them. Over the weekend I discovered that the airbag ECU stores enough power to fire them in the event of the battery becoming damaged or disconnected in a crash.

Seems a bit irrelevant to disconnect the battery then, doesn't it?

Sent from my SM-N9005 using Tapatalk
User avatar
CitroJim
A very naughty boy
Posts: 43888
Joined: 30 Apr 2005, 23:33
x 1782

Re: Xantos and Xantia madness

Post by CitroJim »

RichardW wrote:
xantos wrote: Is it possible that if I measure the resistance of side airbags in the old seats and then "fool" the ECU with the same resistance...
What ever you do, don't do that - the voltage from the meter may be enough to fire the airbag..... :shock:
Yes, I wish to reiterate this most strongly... This is very likely to happen if you use an old-type ohmmeter (such as an AVO 8) as they do supply quite a current when measuring resistance. You may be OK with a digital meter of modern origin but the risk is just far too high...

Youtube has some airbag 'accidents' to focus the mind on just how dangerous these things can be if mis0handled.
User avatar
CitroJim
A very naughty boy
Posts: 43888
Joined: 30 Apr 2005, 23:33
x 1782

Re: Xantos and Xantia madness

Post by CitroJim »

BenC5HDi wrote:Here's a thing that's baffling me at the moment with regards to airbags and pretensioners - I'm having issues with mine. Anyway, advice is always to disconnect the battery before messing with them. Over the weekend I discovered that the airbag ECU stores enough power to fire them in the event of the battery becoming damaged or disconnected in a crash.

Seems a bit irrelevant to disconnect the battery then, doesn't it?
That is true but the charge held in the ECU for the emergency activation of the airbags will dissipate quite quickly and will fall to zero after a few minutes after battery disconnection. This is why you are advised to wait 10 minutes after disconnecting the battery.

I believe the charge is stored in a large capacitor and not a battery.
BenC5HDi
Not Mike
Posts: 588
Joined: 30 Nov 2015, 21:21
x 33

Re: Xantos and Xantia madness

Post by BenC5HDi »

Ah thanks for the explanation Jim!

Sent from my SM-N9005 using Tapatalk
User avatar
xantos
Posts: 409
Joined: 02 Apr 2013, 10:05
x 7

Re: Xantos and Xantia madness

Post by xantos »

Good to know all these things. Thanks!
User avatar
xantos
Posts: 409
Joined: 02 Apr 2013, 10:05
x 7

Re: Xantos and Xantia madness

Post by xantos »

Who said you can't fit seats from estate to saloon??? And who said there isn't an estate Activa on the other hand? :lol:

Image

Image

With a bit help of angle grinder and MIG welder it can be done!