Dreaded airbag light

[joolsey1968]

Hi guys I know this has been done before so please bear with me.
So I have a 20vt which had the usual water ingress problems and airbag light stuck on. Doors have been sorted car is leak free and "EVENTUALLY" dried out. Today my mechanic and I tried to fix the airbag light issue. After reading previous threads I purchased sensor 1C0 909 605 A and swapped it over. My mechanic said this is the one not under the seat but more towards centre between both footwells around the heater area.
It didn't resolve the issue but apparently opened up some new codes. Which I will try to attach. We also pulled the passenger seat out and checked the one under the carpet. This one looked brand new condition. Any help advice greatly appreciated guys thanks

 

[mty12345]

If you haven't aleady done so then I'd make sure you clean up the wiring plugs with some IPA or another suitable cleaner. It could be that the connections on the plugs have become corroded, and that would result in high resistance or things not being connected at all. Once you have done that, then delete all the codes and try again.

That looks like a good scanner from the screenshots, maybe see if there is any 'live data' which could be helpful. Sometimes it will show the resistance as a figure, and then you can see if the values change while you wiggle the wiring and things like that.

 

[joolsey1968]

If you haven't aleady done so then I'd make sure you clean up the wiring plugs with some IPA or another suitable cleaner. It could be that the connections on the plugs have become corroded, and that would result in high resistance or things not being connected at all. Once you have done that, then delete all the codes and try again.

That looks like a good scanner from the screenshots, maybe see if there is any 'live data' which could be helpful. Sometimes it will show the resistance as a figure, and then you can see if the values change while you wiggle the wiring and things like that.

Ok buddy thanks for the reply

 

[mty12345]

Ok buddy thanks for the reply

No worries, let us know how you get on

 

[Rich.T]

The relay under the seat that looked brand new.
Was it still wet/damp?
Thats the one i replaced and the light went out.

 

[Mmueslis]

Hi guys I know this has been done before so please bear with me.
So I have a 20vt which had the usual water ingress problems and airbag light stuck on. Doors have been sorted car is leak free and "EVENTUALLY" dried out. Today my mechanic and I tried to fix the airbag light issue. After reading previous threads I purchased sensor 1C0 909 605 A and swapped it over. My mechanic said this is the one not under the seat but more towards centre between both footwells around the heater area.
It didn't resolve the issue but apparently opened up some new codes. Which I will try to attach. We also pulled the passenger seat out and checked the one under the carpet. This one looked brand new condition. Any help advice greatly appreciated guys thanks

Hey!

I am in Portugal and have a Toledo 1.9 from the same year as your leon. I am having water in the passenger front side (under the feet) and also the problem with the airbag...I am nearly dumping the car but I love the motor.

Can you tell me how you fixed it? I have to fix this..I cant drive around without an airbag but I just noticed the water so I suppose its that..

Thank you!

 

[mty12345]

Hey!

I am in Portugal and have a Toledo 1.9 from the same year as your leon. I am having water in the passenger front side (under the feet) and also the problem with the airbag...I am nearly dumping the car but I love the motor.

Can you tell me how you fixed it? I have to fix this..I cant drive around without an airbag but I just noticed the water so I suppose its that..

Thank you!

Repair the door seals http://dubsteve68.blogspot.com/2011/05/seat-leon-leaking-door-seals-repair.html

Then clean and dry the sensor, if it still doesn't work then you need to replace it

 

[Mmueslis]

Thank you!

Any downside in using good silicone instead of the butylic tape in your opinion? I have loads hanging around here and it should me a good isolant as well.

 

[Alexis27]

Silicone just doesn't last. Plenty of us have gone to fix the door seals only to find the previous owner has gunked it up with silicone.

 

[Nam-uk]

butylic tape is cheaper then silicon anyway only issue is when replacing the locks as its a harder to remover the panels, but if it works its the only option