Honda experts,

I was at the junkyard recently and found a mystery Honda electronic
part. As a technically-minded person, I'm curious to know what it is.
Here are a couple of pictures:
http://www.mythic-beasts.com/~cdt22/honda_part.jpg
http://www.mythic-beasts.com/~cdt22/...part_label.jpg

Anyone know?

Best wishes,

Chris