Airbag problem of a 2001 Ibiza

I have a problem with an Ibiza of 2001 to which the airbag's chivato is lit and I can't find the failure. My research tells me that it is from the passenger seat but I am not sure that there can be a problem, if anyone could clarify it would be very useful.
thank you

Friend looks at the seat failure codes if they are common especially in the sensesmen of the seat belts, it is a common failure EV VW and Ibiza

I do not know the car you are talking about in question, but in Fiat Stilo Airbag alarm is often presented when the driver's seat moves.
The problem is a connector under the seat that is triggered by the displacement of the seat.
I know it's not the same car, but ...
greetings

Thank you but I put the diagnostic machine and delete the memory that it had and for the moment it was not turned on again. Thank you for the next time I will take into account what you have told me.
thank you so much

If the fault memory has not been turned on again, it is because the failure is sporadic and possibly for what Zulu says, some connector loose under the seat or cable of the pretensor bitten by the seat lane.

Look at it because you have history there.