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detailed wiring schematic?

Discussion in 'Prius c Technical Discussion' started by NyQuil, May 2, 2017.

  1. NyQuil

    NyQuil Junior Member

    Joined:
    May 2, 2017
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    Location:
    19046
    Vehicle:
    2016 Prius c
    Model:
    Two
    He all, I recently got the prius c 2016, loving it, but I'm ready to add some things to it. I also like to use as much of the existing wiring as I can. I'm currently looking to add a secondary horn that requires about 20A. Looking through the fuse box in the cabin, I noted that there is a 25A fuse for the moon roof. However, my model doesn't have a moon roof, so essentially this circuit is free and I would like to use it. My only problem is I don't know which wire (or pin) coming from the fuse box will link me to it (or even if there is something else on said circuit).

    I've done quiet a bit of digging but i have yet to find a detailed wiring schematic for this car, any help?

    Worst case, is there an easy way to find the pin? I assume I could use a continuity tester to find it, but I'd rather get the info from the schematic.

    cheers!
     
  2. Matt H

    Matt H Active Member

    Joined:
    Nov 23, 2012
    164
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    Location:
    Okinawa Japan
    Vehicle:
    2012 Aqua
    Model:
    N/A
  3. TheTimob

    TheTimob Member

    Joined:
    Jan 16, 2014
    120
    79
    0
    Location:
    Divide, CO
    Vehicle:
    2013 Prius c
    Model:
    Three
    If you use the sunroof wire, it won't work with the ignition off, so no horn honking when the alarm/panic goes off. Just a thought.

    I bet a horn that pulls 20a is going to be impressively loud though!
     
  4. NyQuil

    NyQuil Junior Member

    Joined:
    May 2, 2017
    26
    17
    0
    Location:
    19046
    Vehicle:
    2016 Prius c
    Model:
    Two
    I'm well aware of that. in fact, due to it's loudness, I'm actually having a separate button to operate and preserving the original horn and it's wiring. The main reason i'm wiring into the moon roof circuit is simply so that it's a cleaner instaallation, just a preference really.
     
  5. kiwi

    kiwi Member

    Joined:
    Jul 12, 2012
    245
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    0
    Location:
    New Zealand
    Vehicle:
    2012 Prius c
    Model:
    N/A
    If you have got one already would you be keen to share? For my Prius C (Aqua). Did I talk to you on IAM Forum re; Batteries in Japan? I remember there was one mechanic from Okinawa.
     
  6. GVP Advanced

    GVP Advanced New Member

    Joined:
    Jun 4, 2019
    10
    9
    0
    Location:
    US
    Vehicle:
    2019 Prius
    Model:
    LE
    I have Wiring harness from 2016 Prius with moon roof. Purchased it on eBay for my project to add Homelink auto dimming mirror to my 2019 LE. image.jpg image.jpg