2007 Prius MFD Blank sometimes, comes on others. ?

Hello all,

Thanks so much for this forum. I've lurked here for a long time without an account. Even ordered my sunshade from Priuschat's shop! Anyhow, I've scoured the forums for two days on this issue and I'm flummoxed:

My 2007 MFD just didn't come on one day. Then, later in the day, it did turn on when I started the car. Did the logo and everything before going to back up view. This morning, I start it, no logo, but when I shift into reverse, the back up cam comes on. I drive to work, stop the car, park it, and then look up maintenance mode so I can see how the battery is doing (I replaced the 12V battery less than a year ago). Reads 13V so that seems fine. I know you are supposed to wait awhile, but I can't tell when my MFD is going to work.

Turned car off and then back on to see if I can check it while it's not running, and the MFD will not turn on.

Thus far, I have a list of the fuses to check, but if it's a fuse, shouldn't it not work at all? Could it be soldered connections within the MFD that are momentarily making contact? I've looked and looked and haven't found anyone with this issue where it comes and goes.

Thanks so much!

 

The cost seems prohibitively high vs. buying a refurb model on eBay. There they seem to go for $185 or so. Also, out of curiosity, can one buy a MFD that contains a navigational system so as to upgrade the Prius, or is the nav system separate in the car from the MFD? And I am taking anyone's guesses as to what's wrong. I figured not fuses because it does periodically work.