Mine did exactly the same about a year ago. Was the same time we did a dash swap, so I thought it had something to do with that.
Checked all the fuses, they seemed fine, sent it in to be fixed, and they replaced a fuse. Turned out that while the fuse looked fine, it did in fact have a small break in it. Replaced it, and everything working fine.
Think it was fuse #13 if I remember correctly.
My OBC display also died when this happened.
