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MFD Problem After New Audio Install

Discussion in 'Gen 2 Prius Audio and Electronics' started by MarsiaMS, Jul 16, 2016.

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  1. MarsiaMS

    MarsiaMS New Member

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    Hello all,

    I got a new Pioneer audio for my 2009 Prius and had the electronics shop install it. While the audio is working well, the MFD touch screen stopped showing all values. I cannot see my fuel economy, battery charge, or the outside temperature.
    I took the car to Toyota dealer, and they told me that the MFD and Pioneer audio are not properly connected, and that the MFD will only work with the factory audio. Did anybody here have a similar issue? Is there an option for me that does not involve putting the old, barely working factory audio back in?

    Thanks in advance for your replies.
     
    #1 MarsiaMS, Jul 16, 2016
  2. IMkenNY

    IMkenNY Im just being nosy

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    #2 IMkenNY, Jul 16, 2016
  3. 69shovlhed

    69shovlhed Surly tree hugger

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    there is an adapter harness, made by scosche I believe, which the shop should have installed if they knew what they were doing. it has the 68 ohm resistor wired into it.
     
    #3 69shovlhed, Jul 16, 2016
  4. 69shovlhed

    69shovlhed Surly tree hugger

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    I hope the shop soldered all the connections and didn't hack up your wiring harness, or you'll have more problems later.
     
    #4 69shovlhed, Jul 16, 2016
  5. Syndrome

    Syndrome New Member

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    the 68 ohm resistor will fix it, i did it today. had the same thing
     
    #5 Syndrome, Jul 16, 2016
  6. MarsiaMS

    MarsiaMS New Member

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    Thanks a lot for your responses. I will look into the resistor solution and write if it worked.
     
    #6 MarsiaMS, Jul 17, 2016
  7. hughdaleharris

    hughdaleharris Junior Member

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    What type of 68 ohm resistor did you use? I see options for 1/4 watt, 1/2 watt, 1 watt, 2 watt, 5 watt, and 10 watt 68 ohm resistors at my local supplier of electronic components and electrical equipment.
     
    #7 hughdaleharris, Mar 20, 2017
  8. IMkenNY

    IMkenNY Im just being nosy

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    All of them would work, go with the lowest cost which would likely be the 1/4 watt
     
    #8 IMkenNY, Mar 21, 2017
  9. MarsiaMS

    MarsiaMS New Member

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    I never got to try this solution, as the car in question was totalled just a few days after. I hope I never have to deal with a similar issue on my new Prius!
     
    #9 MarsiaMS, Mar 21, 2017
    bisco likes this.
  10. bisco

    bisco cookie crumbler

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    did you get another '09?
     
    #10 bisco, Mar 21, 2017
  11. MarsiaMS

    MarsiaMS New Member

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    Haha, no. I got a 2016 Prius C.
     
    #11 MarsiaMS, Mar 21, 2017
    bisco likes this.
  12. bisco

    bisco cookie crumbler

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    congrats, all the best!(y)
     
    #12 bisco, Mar 21, 2017
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