No power to MFD, radio, clock

Discussion in 'Gen 2 Prius Audio and Electronics' started by 4thesporty, Feb 17, 2026.

  1. 4thesporty

    4thesporty New Member

    Joined:
    Feb 17, 2026
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    Location:
    Fort Worth
    Vehicle:
    2007 Prius
    Model:
    N/A
    Hello,

    new owner of a 2007 with JBL 9 speaker, no NAV car. I've been cleaning and correcting a few things to make sure this is roadworthy for my daughter in a few months when she gets her license.

    I removed my dash to try and clean the combo meter lens (ended up just removing it as it could not be made clear again) During this process I also replaced the digitizer on my MFD as touch was not working on it. Upon reassembly I tested the MFD and found that the new digitizer didn't change the situation, so I unplugged it again to check connections.

    From this point on I cannot get the MFD to turn on with the car. I ended up putting everything back together as I needed to drive the car the following morning. Right now I have no power to the MFD, radio, and clock.

    Things i've checked:
    Fuses under the dash, a few different ones; panel ACC, ECM, all the ones that seem like they would affect this
    Dome fuse under the hood

    My next step is to remove the MFD again and check for power at the plug, though I need to find a pin out for this. Is there anything else I am overlooking here?

    Also, I did not disconnect the 12v battery prior to doing this work as I thought that was unnecessary.

    First time prius owner here, go easy.
     
  2. 4thesporty

    4thesporty New Member

    Joined:
    Feb 17, 2026
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    Location:
    Fort Worth
    Vehicle:
    2007 Prius
    Model:
    N/A
    Well, turns out i'm an idiot...

    I went through every fuse again in the car; found none blown. Tore apart the dash again and verified all plugs. Found the pinout for the MFD and radio plugs to check 12V (there was 0 voltage to them). About to pull my hair out, then went back to the three fuses that were most likely the culprits...pulled them and put my multimeter on them and found the ACC fuse with no continuity despite it looking just fine visually.

    Replaced it and everything works again
     
    Brian1954 likes this.
  3. ChapmanF

    ChapmanF Senior Member

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    Location:
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    Vehicle:
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