Hi All,
Looks like I have a garage visit to arrange. The Aygo's airbag light came on in October a little after being on a slightly bumpy tarmac farm track and I cleared it at home (switched ignition on/off 7 times). This stayed off until early January, and since I've been checking all the connections, passenger, side impact and pre-tensioners, and liberally cleaning the connectors with contact cleaner. Even disconnecting the Battery, etc, the light always returns after a few minutes. Once or twice it's gone out mid journey, but it's been 'flashing' on the last two weeks. I've bought an Autel MaxiLink ML629 that can access the control units including the SRS - it says it can't connect to the SRS Unit, but has been able to check everything else. Only thing it found was something to do with rear speed sensors (doesn't have this on a 2010 aygo as no stability programme) and low Battery voltage in history(Battery is new six months ago as well as alternator). I cleared these and nothing has re-appeared (no warning lights previously).
It works fine on my Nissan with systems and SRS. If it's saying it can't connect, I'm thinking I need to check the main connection's to the SRS control unit, which is located behind the cubby holes in the lower dash near the gear stick. I'll disconnect the battery, leave it a while and check and clean the connections. I can only think, there could be an issue here.
If that doesn't sort it, I suspect a garage has better equipment for diagnosing, but at least I can rule out corroded connectors.
If the battery issue pops up again (there have been no issues starting in the freezing cold), this might need checking. Battery might be an old stored code from when we had an alternator issue (months before the SRS light).