Air bag warning light - seat connector

[Sludgepump]

Some of you may be aware that I've had my seats re-upholstered. I'm really pleased with them but can you spot the error?



Cutting to the chase -the seat backs were on the wrong seats. The seat belt carrier is on the inside of the seat when it should be on the outside.
Got in touch with the upholsterer and they offered to swap the backs over to the right seats. Went up there, explained to the guy that he'd have to disconnect the battery before unplugging the seat connector, but he gave me a knowing smile as if to say it wouldn't be a problem. I assumed he'd have a code reader or something.
Anyway, surprise surprise, I have the airbag warning light on. I can't be bothered to go back (2 hour round trip) so I'm going to sort it myself.

Most searches on here are for situations where the root cause of the airbag light error is not known, but I know the cause. Is it time to invest in a Creator C310+ code reader? Will this little gizmo clear the fault?

Recent thread on this
https://z4-forum.com/forum/viewtopic.php?p=1816754

Thanks
Dave

couple more pics

 

[jabber]

Perhaps there is a z4 owner near you who has a reader and would reset it for you

 

[Sludgepump]

Thanks Jabber but I wonder whether it's time to invest in a code reader. Just want to know if it will sort the problem.

 

[Sidewaze Samm]

Thanks Jabber but I wonder whether it's time to invest in a code reader. Just want to know if it will sort the problem.

I certainly don't know "as fact", but my understanding is that many code readers can't reset airbag lights due to the safety issues and you'll need some "proper" kit to sort it, as found at a dealer or good indy. So if you're going to buy, check it out first.
Having said that I may be talking cobblers, and happy to be told so if that's the case...