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No Aircon A/C control after replacing HU

Discussion in 'Gen 2 Prius Audio and Electronics' started by Kiwibird, May 8, 2021.

  1. Kiwibird

    Kiwibird Junior Member

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    i-Tech
    I have replaced my head unit in my 2009 Prius, all functions work except the Aircon، outside temp, info, battery charging and fuel consumption screen not showing... If I put the OEM unit back everything back to normal, am I missing some adapter here? I know the radio functions won't integrate on the MFD that's fine but I need the other main functions!! How to solve this please??

    Thanks in advance.
     
  2. dolj

    dolj Senior Member

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    There is a 68Ω resistor that is required to terminate the LAN bus correctly. Try and research that, if you don't have that resistor in place currently.
     
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  3. Kiwibird

    Kiwibird Junior Member

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    dolji thanks for the help, I already ordered the resistor waiting for it to arrive, I have tried another Toyota genuine radio still the AC functions is not there as well as energy screen. Only the Prius radio makes everything work.
    I hope the resistor will fix the issue with the other none Prius head units.

    Thanks
     
  4. Kiwibird

    Kiwibird Junior Member

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    Ok I received the resistor, I connected a Toyota head unit from corolla 2005, the resistor did not change anything unfortunately, still displaying Check the connection of the AC... I am pretty I connected it right check photo.
    Thank you
     

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