2010 UK Prius T-Spirit (Nav+IPA) Android HU wiring query - reversing camera wiring

Discussion in 'Gen 3 Prius Audio and Electronics' started by Hardylane, Oct 16, 2020.

  1. Hardylane

    Hardylane New Member

    Joined:
    Oct 16, 2020
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    Location:
    Manchester, UK
    Vehicle:
    2010 Prius
    Model:
    ----UK----
    OK, here's the exact spec, and the singular problem I'm having...

    Original ICE - UK Toyota Prius T-Spirit 2010 with B9019 (non-JBL) Nav head unit (with IPA)

    I've spent DAYS trying to find info on this exact spec and no real progress... I cannot get the reversing camera to work because I can't find the connections....

    Here's the issue - I've installed an Xtrons Android head unit with its own custom harness, and it all MOSTLY works. I did have to create a +12v link to the front door woofer mini-amp however... try finding anything about THAT! (Just make a link on the harness from +ACC to +AMP on the 10-pin audio connector)

    However, the all-important 20-pin connector does NOT have the usual reversing camera pins on it (1&11, 2&12) because of this damn parking assist (which I never use and won't miss) - the camera (I believe) goes directly into the IPA controller, which is then routed to the head unit by means unknown.

    I'm loathe to run a new 4-core cable all the way to the tailgate, but I will if I have to...

    UNLESS one of you fine people have come across this issue already and can clue me in.

    Over to you :)
     
    #1 Hardylane, Oct 16, 2020
  2. Hardylane

    Hardylane New Member

    Joined:
    Oct 16, 2020
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    Location:
    Manchester, UK
    Vehicle:
    2010 Prius
    Model:
    ----UK----
    Gave up. Had to run the cables. Never mind. Pity.
     
    #2 Hardylane, Oct 21, 2020
  3. FlyHigh757

    FlyHigh757 New Member

    Joined:
    Nov 25, 2020
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    Location:
    Rugby, UK
    Vehicle:
    2010 Prius
    Model:
    Excel
    Hi there!
    Exactly the same position as you! Same spec car, the lot! I'm using a similar head unit to the Xtrons and noticed the front door speakers weren't working. Further investigation found a mini amp under the driver's seat, but not the JBL.
    So, all I need to do is add power to the amp?
    Taking wire G3 on headunit (ACC red) and which wire is +AMP on the original loom? It appears that all wires on my 10-pin connector are used.
    Many thanks
    Android Harness.jpg Prius Loom 1.jpg Rear Head Unit.jpg
     
    #3 FlyHigh757, Nov 25, 2020
  4. FlyHigh757

    FlyHigh757 New Member

    Joined:
    Nov 25, 2020
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    Location:
    Rugby, UK
    Vehicle:
    2010 Prius
    Model:
    Excel
    Finally making progress on this one, it may help someone with a NAV system, basic amp setup (non JBL) & Park Assist.
    Still need tips with the mini amp power though, but shall get the multi-meter on it in a bit.

    The REVerse trigger comes in to the NAV system from the IPA ECU using a grey 5 pin connector L42 and is the pink wire on pin 5.
    This can be used to trigger the reverse screen on an aftermarket head unit.
    Other wires on L42:
    Pin 1 (Red) = Parking Brake Switch Sensor
    Pin 2 (Black) = Ignition (10amp)
    Pin 3 (Violet) = Speed Sensor (Some aftermarket head units and taxi meters need this)

    The canbus from the IPA is:
    Connector L41 White 20 pin connector
    Pin 9 (Green wire) = TX+
    Pin 10 (Pink Wire) = TX-

    I will let you know if the Android system will accept these signals - Highly doubt it though!

    IPA Video (includes reversing camera):
    Connector L105 Blue Connector
    Black single wire - However it is a GVIF interface.

    This is the L42 connector
    IMG_5332.jpg IMG_5333.jpg
     
    #4 FlyHigh757, Nov 26, 2020
  5. g.r

    g.r New Member

    Joined:
    Mar 4, 2022
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    Location:
    hungary
    Vehicle:
    2010 Prius
    Model:
    N/A
    Hi!
    I just got into a similar situation.
    Did you find out the connection point of the amplifier?
    Unfortunately, the camera is connected to the IPA ECU, from where you can disconnect a video signal
     
    #5 g.r, Mar 4, 2022
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