Airbag warning light goes on and off on Peugeot 306 Break?

This is not something you want to do yourself. If the light is on, your airbags are not functioning correctly. Here's the best site I found for information on airbags and the remedies for problems: http://www.airbagsolutions.com/light.asp...

"Daniel, Have the vehicle scanned to see where the SRS/air bag fault is in the circuit, much easier to diagnose and find the fault. If you google search (Peugeot 306 SRS airbag light on intermittent) you will see a wealth of info. on the problem you are experiencing. Good luck.

I hope this helped you out, if so let me know by pressing the helpful button."

There is cable under the front seats may be cut off

Cable conectors under front seats. Clean it, and look at Airbag Computer.

The light is indeed related to a sensor wich is connected under the driver's seat.