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    hariprasad.4291 New Member

    Member Since:
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    Location:
    Akron
    Your Vehicle Year:
    2005 Prius
    Model:
    N/A
    Hello All,

    I am A. Hari Prasad. a graduate student of university of akron,
    I am currently working on 2005 toyota prius engine and its ECU, which is to be installed on the ground and control the engine using can communication with the laptop. Can any one post the wiring diagram of the engine control module of the 2005toyota prius with its pin configuration.

    Sincerely,
    Hari Prasad. A
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    Oneaxepony New Member

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    Location:
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    Your Vehicle Year:
    2007 Prius
    A few years ago I was looking for a Gen II Prius wiring diagram because I wanted to see how the Aux input got into the radio. Long story short, I found a European (French?) Prius site that had wiring diagrams in PDF format. After reading your post I did a quick search to see if I could find this site, but I came up empty. Perhaps another PCer reading this will recognize what I am describing and post a link.

    Good luck with your project.
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    hariprasad.4291 New Member

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    Location:
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    Your Vehicle Year:
    2005 Prius
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    Thanks for the reply. I got some repair manuals from one of the sites where i have to pay $11 to get them. But my main aim as of now is how the Engine ECU will depend on the other ECUs and the how the engine control unit can be controlled by the inputs from the other ECUs.

    Wish I will get some more help from this forum.
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    spwolf Senior Member

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    i doubt you will find that info anywhere....
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    2k1Toaster HID Guru

    Member Since:
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    Location:
    Rocky Mountains
    Your Vehicle Year:
    2006 Prius
    Model:
    Three
    The Hybrid ECU is the main brain the car. It controls everything including the Engine ECU in the GenII. There are no published schematics for the internal workings of these ECU's however, with years of sniffing, I am sure you can come up with something to put inbetween. There are schematics on the toyotatech site. They used to be in nice PDF form, but have since changed to this stupid java based display. I was able to run a virtual machine with a ginormously big resolution "monitor" to display most at the same time, then screen capture and rearrange into high resolution bitmaps.

    You can do the same, just buy a subscription. I bought a 1 day and a 3 day, and it took me 3 days to get it all copied over.

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