Airbag warning light on Gen 4.

Roger -

1) Like Facade says, the plugs under the seat will cause an SRS light. Easy to check them -- unplug, blow out, replug. That is also the kind of failure that would cause the intermittent-graudating-to-permanent warning light mode. These connectors are exposed and liable to get bumped, get wet, etc.

2) A failure of the clockspring is also possible but IMO less likely. The failure mode would look different.

3) You can pull the airbag pretty easily if you are just curious what it looks like "inside" your steering wheel. But it is not at all likely that the connector airbag-to-clockspring is bad, as this is a substantial, locked plug.

4) Internal failure of the airbag unit itself is ultrarare. Failure of the central controller unit is also pretty unusual. Either of those failing would almost certainly cause the warning light to come on and stay on, one and done. So again, my vote is to check the connectors that are exposed and easily accessible.

Not disagreeing with the above posts about the usefulness of SZViewer. But I suspect it may not be needed to diagnose the problem here.

Let us know how it goes, good luck!

As suggested by facade and Motocilla, I unplugged the under seat connectors and checked them out and then re-assembled and now 5 days later the light has behaved itself, so I have decided that the connections must have been faulty in some way. So many thanks to all who contributed with suggestions and I will buy for future use a suitable reader.

Chhers

Roger