MFD (Multimedia Display) and buttons surrounding it are dark, not working.

When I entered my 2010 Prius I noticed that the navi screen (mdf, multimedia display, or whatever it is called) is black, complete with the buttons - as if the power has been cut. Tried restarting it multiple times but no go. Everything else is working normally.

Anybody had the same problem?

 

Checked all the fuses in engine bay and under dash, under dash all fuses have voltage over both ends except for two that are dead on both. So it's probably not fuses. I don't have rheostat but rather two brightness buttons next to hour buttons. I'm really hoping mfd isn't dead for good, I hav this car for less than a year, used. Anyone know if it is possible to measure voltage at the jack of mfd directly?On closer inspection the two fuses that don't have voltage on any side are tail and panel fusesWhen I turn on lights those two get voltage across. Now all fuses have voltage accross.

 

I tested it with 12V tester screwdriver. Do you know which fuses are relevant. I'm pretty sure I did all of them, engine and interior compartment. As far as i know those are relevant according to schematic:
ECU-IG, ECU-ACC, RAD-NO1 (this one i cannot find, probably because I have a version with sliding roof and there is an annotation that this is sliding roof only).
Any other suspect fuses to check?

It's a EU 2010 Prius HSD Executive (leather, sun roof, touchscreen display, led headlights, etc.)

 

Well, I kinda am an electronics hobbyist and computer technician by trade but I'm not going to take the unit apart before I am sure that there isn't a simpler fix in the first place. If I don't manage to find anything I'm thinking about getting it to the dealer for a check (30$/hour).

Third button from top, left to the MFD is brightness button: https://i.ytimg.com/vi/fWvv1Zxtsp4/maxresdefault.jpgAnybody know if MFD US/EU units are interchangeable?

 

I have schematics and will check following connectors tomorrow:
D(L40) - 11 -> ACC
D(L40) - 1 -> B
F(L42) - 2 -> IG

Those should be responsible for powering the unit.
If I don't manage to repair it in the end, I will probably put in a Kenwood or something similar, but don't want to dish out 700$ or so for something that worked just yesterday.
Also, I have searched all over the web and not a single mention of this on a 3rd gen prius - not a single one, there were some problems with gen 2 solder #60 but that is a different unity alltogether.

 

Measured the voltage across the relevant pins, everything seems allright. Unit is still pitch black and not showing signs of life :/
A bit dissapointed that it died after 5 and a half years.

 

Do you know anyone in Europe that is fixing them? It's not worth sending it to US just to get it fixed and than back, that's 200$+ just for shipping.

It started showing life while I was driving. It flickered on a few times for a few moments (less than second) and then once for about 3s, it said something about loading, don't turn off. It's making loud cracking noises when it turns on.

 

Wrong forum sir, this is gen 3, gen 4 info can be found here: Gen 4 2016 Prius | PriusChat
Two and Two eco will have display but no GPS, others do have gps: Visual Tables of Gen4 Package Combinations | PriusChat

 

Thanks, will try

Has been dead since. Will post more updates tomorrow after a few hour drive.

 

Even after driving for 2 hours no more signs of life. Will do a complete check and if needed teardown when I find time for it and post info here. Will probably be a week or so before I get to do it tho.

I did take it apart partially and wiggling something made it go live, so my bet is that if I wiggle it some more...