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MFD screen sense problem

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by mkohler, Apr 11, 2012.

  1. mkohler

    mkohler Junior Member

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    My 2006 Prius MFD still works, but when I try to select a button (let's say fan speed of climate control), when I press a button on the left side of the screen, a button on the right side of the screen engages. This is somewhat common on all screens. It's like the programming of the X-Y coordinates of the pressed section of the screen is offset. If I press the medium fan speed, it highlights high speed. As I press buttons moving from the medium speed down to low, the selected buttons highlight from high down to medium. If I press the A/C button, the fresh/recirculating air button highlights and toggles.

    The display has been working perfectly until now (150k miles). I did recently get my car detailed which entailed cleaning the MFD of fingerprints, but I can't imagine that did anything as this is a pressure sensitive display, rather than capacitive.

    On another note, my volume knob is mostly useless and sometimes the volume goes up and down on its own. Luckily I still have control over volume from my steering wheel. However this is a rare occurrence.

    I'm more worried about the MFD because of the expense of replacing it as well as its control of Air Conditioning (as it's getting hot in Texas these days). Most of the threads I've read talks about blacked out screens rather than a offset problem.

    Any help is appreciated.
     
    #1 mkohler, Apr 11, 2012
  2. tnp

    tnp Junior Member

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    #2 tnp, Apr 11, 2012
  3. mkohler

    mkohler Junior Member

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    Because my screen is offset, I can't hit the button that allows me to get into the display check feature. Besides, in the video, it just looks like a verification tool without any way to reset the display to factory settings or to program it to a new touch coordinance, like "touch the center of the screen" and have it learn the new center.

    any ideas on how to reprogram or reset the touch screen sense feature?
     
    #3 mkohler, Apr 12, 2012
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  4. Britprius

    Britprius Senior Member

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    Have you tried disconnecting the 12V for a short period? It may help.
     
    #4 Britprius, Apr 12, 2012
  5. BravoIndigoLimaLima

    BravoIndigoLimaLima Junior Member

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    I have tried disconnecting the 12 volt for a short period of time and for a long period of time and neither helped with the touch screen sense problem.
     
    #5 BravoIndigoLimaLima, Apr 16, 2014
  6. youdiejoe

    youdiejoe Member

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    2010 Prius
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    Three
    I was having trouble with my 2007 MFD touch screen, it was WAY out of alignment, mis-reading my touches on screen by several inches.

    I use to have an old Compaq PDA that had a calibration function and figured that one had to exist for the Prius MFD, luckily a google search lead me to this link:

    2007 Prius - Easter Egg

    Which gives you instructions on how to reach the "Diagnostic Menu" which many people have posted about. This 1st level menu has a "Display Check" but no actual calibration functions. LUCKILY there is 2nd level menu you can then reach called "Product Diagnosis Menu" (step by step instructions on how to access this menu are at the link above) and it is on that menu you can see the "Calibration" program which, like my old PDA, gives you crosshairs to tap to re-align the touch screen!

    Once I was able to navigate to the screen (it took several tries as my touch screen was very much out of alignment) I was able access the program and fix my problem!

    Hope this helps others!
     
    #6 youdiejoe, Oct 4, 2014
  7. wjtracy

    wjtracy Senior Member

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    I cannot seem to get down to 2nd Menu level "Product Diagnosis Menu"
    In the Easter egg link he says Press INFO and turn on Tail Lights switch...what's that?
     
    #7 wjtracy, Feb 22, 2015
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  8. valde3

    valde3 Senior Member

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    Tail lights is another name for parking lights. If the MFD is out of calibration it’s easier way to get into Diagnostic menu. Just hold Info button down and turn parking lights on and off 5 times.
     
    #8 valde3, Feb 23, 2015
  9. wjtracy

    wjtracy Senior Member

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    ^^^OK I try again but I have no problem getting to the first Diagnostic Menu.
    It's the second step to get to a deeper down hidden menu to adjust the MFD that is escaping me.
     
    #9 wjtracy, Feb 23, 2015
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  10. RobH

    RobH Senior Member

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    The problem is that the connection between the touch panel and a flex cable has opened up. I fixed mine by exposing the connection with a Dremel burr tool, and adding a few drops of Circuit Writer.

    See multi-function display does not work | PriusChat for more info.
     
    #10 RobH, Feb 23, 2015
  11. wjtracy

    wjtracy Senior Member

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    Rob that's good to know! but right now my MFD operates OK the problem I am having is getting to the "hidden" deeper menu to calibrate the touch screen. The "easter egg" link above says, from the Diagnostics Menu, Press INFO and turn off/on the tail light to get to a deeper "Product Diagnosis Menu" but the INFO/Tail light combo is not working for me so far.

    Actually all I really wanted to do was check the battery so I finally got there. My touch screen is off so its hard to navigate but finally got it to go to the battery screen. Would like to calibrate touch screen if I can.
     
    #11 wjtracy, Feb 23, 2015
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  12. Hugh Wever

    Hugh Wever New Member

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    guys... I'm new here...
    Generally I make a google search and found solutions, this time couldn't...
    My MFD is out off calibration...
    It seams it doesn't responde bit:
    1 - when I reverse the touch is perfectly calibrated And usable to auto-park...;
    2 - After entering system check menu And leaving I can enter navigation when I touch mfd the map moves always down but the left - right works, meaning: if I touch upper left it moves left but down, if I touch upper right it moves right but down...
    (Have tryed everithing here except master reset Prius
    )
     
    #12 Hugh Wever, Jul 12, 2018
    Last edited by a moderator: Jul 12, 2018
  13. Alive1

    Alive1 Junior Member

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    Hi. 2006 Prius owner with a MFD touchscreen that is out of alignment.
    I know this is an older thread but I am having the same problem that mkohler is/was having. The touch screen is out of alignment in such a way that I am unable to get to the 2nd level menu (or any other subsequent level) using the screen. Is there a way to get to the NEXT LEVELS of menus WITHOUT USING THE TOUCH SCREEN?
     
    #13 Alive1, Aug 6, 2020
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