Reverse Backup Wire?

Discussion in 'Prius c Accessories and Modifications' started by LordsII, Apr 30, 2013.

  1. LordsII

    LordsII New Member

    Joined:
    Apr 30, 2013
    16
    0
    0
    Vehicle:
    2013 Prius c
    Model:
    One
    I am going to install a backup camera. Wondering if anyone could help me locate the reverse backup Wire in the hatch. Location, color, etc? I want to hook the camera wire to this reverse wire. My camera is 12V. Thanks much for your help.
     
  2. garm

    garm mpg + cool = win

    Joined:
    Mar 17, 2013
    215
    80
    0
    Vehicle:
    2012 Prius c
    Model:
    Two
    Subscribed, I want to know too. I figured you can just tap into a back up light.
     
  3. LordsII

    LordsII New Member

    Joined:
    Apr 30, 2013
    16
    0
    0
    Vehicle:
    2013 Prius c
    Model:
    One
    Reverse Wire or Backup Light Wire or whichever that works when you gear to R and camera is on... Anyone knows about this wire?
     
  4. edthefox5

    edthefox5 Senior Member

    Joined:
    Jul 25, 2007
    7,576
    3,274
    0
    Location:
    Clearwater, Florida
    Vehicle:
    2007 Prius
    Model:
    Two
    If its like the Gen II at all there's a harness installed in the hatch waiting for the camera to plug into. Because the camera harness is part of the hatch electronics/lights harness so they are forced to run that camera harness. At least on the Gen II.

    On the Gen II the connector is located right after the rubber bellows that all the wires go into the hatch at the seam by the hinges. Pull the inside hatch cover off to expose that area and see if there's an empty connector. Will be 4 pin.

    B+
    Ground
    Vid in to mfd
    Vid shield.

    The mfd receives the reverse signal and then inputs the camera video from that connector.
    At the very least you could use that harness to get from back to front for an aftermarket.
     
    garm likes this.
  5. garm

    garm mpg + cool = win

    Joined:
    Mar 17, 2013
    215
    80
    0
    Vehicle:
    2012 Prius c
    Model:
    Two
    ^ nice, I'm going to check that.
     
  6. edthefox5

    edthefox5 Senior Member

    Joined:
    Jul 25, 2007
    7,576
    3,274
    0
    Location:
    Clearwater, Florida
    Vehicle:
    2007 Prius
    Model:
    Two
    Pics please of what you find. Thanks.

    If you find an empty 4 pin that's it. It may not have 12 volts on it all the time. If it does not to test have someone sit in the car and put the car in reverse and see if you then can find switched 12 there. If so that tells me the system is intact and ready to go and is just looking for camera video in reverse. If no 12 volts there in reverse it may be missing a relay called BU that switches 12 volts in reverse to the mfd to tell the mfd the car is in reverse.
    Does it say anything on the mfd when in reverse like lookout for objects behind you? If so that means that relay is installed and I believe the system is ready to go just does not have the camera installed.


    Good luck!
     
  7. LordsII

    LordsII New Member

    Joined:
    Apr 30, 2013
    16
    0
    0
    Vehicle:
    2013 Prius c
    Model:
    One
    I found the wire on the left side in the hatch. Connect brown wire for + and black/white for -. Brown wire is the backup light wire.
     
  8. edthefox5

    edthefox5 Senior Member

    Joined:
    Jul 25, 2007
    7,576
    3,274
    0
    Location:
    Clearwater, Florida
    Vehicle:
    2007 Prius
    Model:
    Two
    Glad I could help.
     
  9. kingnba6

    kingnba6 Active Member

    Joined:
    Mar 17, 2013
    1,003
    238
    0
    Location:
    NY
    Vehicle:
    2013 Prius c
    Model:
    One
    anybody know i can tap the reverse signal feed in the fuse box located in the drivers side?
     
  10. edthefox5

    edthefox5 Senior Member

    Joined:
    Jul 25, 2007
    7,576
    3,274
    0
    Location:
    Clearwater, Florida
    Vehicle:
    2007 Prius
    Model:
    Two
    The back up relay is in the fuse box under hood driver side next to Inverter. Then it feeds junction connector J10 on pass side next to the fender about knee high right below plastic valance behind the carpet. From there it feeds junction connector j36 12 position connector which is at the 4 o'clock position if your looking at the relay/fuse board next to the drivers left knee.
    This is the back up relay 12 volts on its way to pin 23 of M13 Multi Display.

    J10: Red wire in red wire out
    J36: Black wire in Pink wire out on its way to pin 23 of MFD
     
  11. kingnba6

    kingnba6 Active Member

    Joined:
    Mar 17, 2013
    1,003
    238
    0
    Location:
    NY
    Vehicle:
    2013 Prius c
    Model:
    One
    i just ran the wire from the drivers side reverse light. didnt even use that much wire either. maybe about 4-5 feet of wire was used to run it from the tail light connector to the drivers kick panel area.
     
  12. Lucky Lager

    Lucky Lager Junior Member

    Joined:
    Jan 10, 2014
    87
    6
    0
    Vehicle:
    2011 Prius
    Model:
    Three
    Was it red or white wire?
     
  13. kingnba6

    kingnba6 Active Member

    Joined:
    Mar 17, 2013
    1,003
    238
    0
    Location:
    NY
    Vehicle:
    2013 Prius c
    Model:
    One
    im not sure. i actually think it was a brown wire in the tail light?
     
  14. Lucky Lager

    Lucky Lager Junior Member

    Joined:
    Jan 10, 2014
    87
    6
    0
    Vehicle:
    2011 Prius
    Model:
    Three
    Mine is white/gray and Red/blu + is the red blue - I tested it (2011 Prius III)
     
  15. MSF1344

    MSF1344 Junior Member

    Joined:
    Oct 27, 2019
    54
    13
    0
    Location:
    UK
    Vehicle:
    2013 Prius
    Model:
    Active
    Hi , Is there any shortcut of the red&blue wire from reverse light behind the dashboard ?
     
  16. dubit

    dubit Active Member

    Joined:
    Dec 3, 2016
    742
    453
    20
    Location:
    Indiana
    Vehicle:
    2016 Prius c
    Model:
    Two
    It appears the user your asking the question of has not been seen here for 5 years & 4 weeks. So mostly likely I'd say your not going to get a reply. lol As for that backup camera. I've read a few threads here and you probably need to see what voltage your camera requires. Some are 12v, but OEM style are apparently 6v.

    If your needing 6v (if I remember this correctly), people find that coming out of the back of the radio.
     
  17. MSF1344

    MSF1344 Junior Member

    Joined:
    Oct 27, 2019
    54
    13
    0
    Location:
    UK
    Vehicle:
    2013 Prius
    Model:
    Active
    @dubit Hi , Thanks for letting me know I am newbie here . I don't have any problem with feeder as i already installed the converter to change the voltage to 6v for my camera but the only problem is i cant connect it to the rear light as it is all long way so i need a shortest route . Can u help ?
     
  18. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

    Joined:
    May 12, 2018
    2,849
    2,656
    1
    Location:
    Pennsylvania
    Vehicle:
    2018 Prius c
    Model:
    Two
    Sounds like you still need the Japanese wiring diagram. USA cars aren't wired the same.
     
Loading...