sutherland Posted January 30, 2009 Report Share Posted January 30, 2009 My passanger seat occupance sensor pad fails and brings up the airbag warning light when the seat is empty, but works fine when someone sits in it. I've seen the various bypass boxes for (ebay item 170298075975) or circuit diagrams for BMW, but does anyone know where I can find something similar or a diagram for an A8? I'm sure it can't be any more complicated for Audi and having my airbag fire unnecessarily in the event of an accident doesn't bother my too much - doesn't take much to write off a seven year old car. Link to comment Share on other sites More sharing options...
phn Posted May 19, 2009 Report Share Posted May 19, 2009 Any update on this one? My airbag light sometimes goes on due to the passengers seat sensor, and then needs to be reset via the garage. After this everything will be fine for a few months or so, until something disturbs it and the light comes back on again. I asked the garage how much it costs to get it fixed permanenlty and its going to be over £450 to replace the sensor! Surely there must be some (cheaper) way to disable the sensor and / or fool the car into thinking its still there and therefore keep the airbag light off? Philip. Link to comment Share on other sites More sharing options...
quattronutter Posted May 19, 2009 Report Share Posted May 19, 2009 you could put a resistor in line to fool the airbag controller,would need to know which wires to tap into though Link to comment Share on other sites More sharing options...
csh1234 Posted January 22, 2010 Report Share Posted January 22, 2010 Did anybody work out how to do this? I guess it must be two of the wires on the small green connector under the seat? I would have thought a straight bypass of the sensor would work. What is the likely risk of this, I would have thought the worst case scenario would be the passenger bag going off without anyone in the passenger seat, and the seatbelt pretensioner firing? Does not sound like a major disaster, and got to be a cheaper option than replacing the sensor... Link to comment Share on other sites More sharing options...
Tipex Posted January 22, 2010 Report Share Posted January 22, 2010 The problem with bypassing the occupancy sensor, so it thinks someone is in the seat, is that it will want the seatbelt plugged in too, or it'll keep beeping at you, so you need to bypass that too. Link to comment Share on other sites More sharing options...
Wizbit Posted January 22, 2010 Report Share Posted January 22, 2010 I don't think I would mess with the airbag circuits... too many bad things could happen :confused: Link to comment Share on other sites More sharing options...
csh1234 Posted January 22, 2010 Report Share Posted January 22, 2010 I would not normally even consider messing with safety related stuff, but in this case I can't see what would be the potential downside, other than deploying the passenger airbag when it would not have actually been required? The alternative does seem to be to spend £££ I will give the bypass a go, if I can figure out which of the two wires go to the sensor... Link to comment Share on other sites More sharing options...
sutherland Posted January 23, 2010 Author Report Share Posted January 23, 2010 In the end I fixed it by buying a full leather interior with working sensor pad on ebay for £200 and then selling my leather/alcantara interior without working sensor pad on ebay for £205. Link to comment Share on other sites More sharing options...
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