Has Anyone Made A Non Touch Screen MFD Replacement?

Discussion in 'Gen 2 Prius Technical Discussion' started by James Analytic, Apr 16, 2025.

  1. James Analytic

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    I was recently speaking with someone about an idea that never came to mind before with me. He was thinking, as I tend to agree with custom projects, that a custom drop in plug and play manual replacement for the MFD would be handy for mainly the HVAC controls and possibly more. Mainly for me what comes to mind are the vent controls and maybe a little more with say a segmented LCD display for temp setting. Steampunk came to mind and wondering about ideas for where to inspire such thoughts so to come to fruition if this has not been done so already?
     
  2. bisco

    bisco cookie crumbler

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  3. MAX2

    MAX2 Senior Member

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    Touch screens, buttons... Everything is outdated.
    Real Japanese cars are controlled by the power of thought
    ...and the power of words.

     
  4. bisco

    bisco cookie crumbler

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    If it were me, I would set up toggle switches and wire them to the back of the mfd
     
  5. mr_guy_mann

    mr_guy_mann Senior Member

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    Sounds neat, but ALL you have to do is "sniff out" the data that goes to and from the HVAC ecu on the AVC-lan bus (or maybe the BEAN bus). Then engineer a module with the switches and transceiver to do what you want. Then do the programming and troubleshooting.

    A few functions can be piggybacked onto the steering wheel controls, but not everything.

    OR, reverse engineer the I/O to the MFD cpu to translate the display & touch panel into physical controls.

    So it's possible, but only for someone with some advanced skills.


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  6. bisco

    bisco cookie crumbler

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    spoilsport :cool: