Airbag light - Error 2 - location of d sensor grounds?

I’m a bit confused with your codes which seem to relate to a Mk1 car. See

http://wiki.miata.net/tiki-index.php?page=Airbag%20Blink%20Codes

If you have a Mk2.5 (NBFL) blink code 2 relates to the control module which is probably the most difficult place to access. See my post at