Horn only works after rotating it, not in straight position

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by GPBear, Jul 26, 2015.

  1. GPBear

    GPBear New Member

    Joined:
    Jul 26, 2015
    1
    0
    0
    Location:
    93117
    Vehicle:
    2010 Prius
    Model:
    II
    We also noticed when depressing the horn to actuate it in the straight position, there is hardly any movement. When in a rotated position, there is a definite actuating movement or depression of the horn. There something happening when it's a straight position, the horn is being prevented from making contact so the horn will work.
    Thoughts?
     
  2. ursle

    ursle Gas miser

    Joined:
    Jun 28, 2006
    1,049
    189
    0
    Location:
    NH
    Vehicle:
    2011 Prius
    Model:
    Four
  3. xliderider

    xliderider Senior Member

    Joined:
    Apr 19, 2012
    6,513
    2,295
    0
    Location:
    Honolulu, HI
    Vehicle:
    2011 Prius
    Model:
    Three
    Do you mean the angle of the steering wheel when you say straight, etc.?
     
  4. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    84,669
    37,237
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    clockspring? or is that just the radio controls?
     
  5. Starz

    Starz Junior Member

    Joined:
    Jun 20, 2015
    37
    75
    0
    Location:
    NC
    Vehicle:
    2011 Prius
    Model:
    Two
    My guess is the clockspring. The spiral cord or one of the electrical connections is loose connecting the clockspring. The clockspring allows the horn and other electrical buttons on the steering wheel to work at any angle of a steering wheel turn while keeping the airbag properly connected.

    Sent ?.
     
  6. JTM2955

    JTM2955 Active Member

    Joined:
    Feb 8, 2015
    475
    185
    0
    Vehicle:
    2004 Prius
    If Toyota uses a clockspring for the horn, then you need a new one.

    If Toyota uses a finger style contact and a commutator like contact(like automakers used for years) then that would explain the dead spot.

    On the other hand, the horn may have grease or carbon build up on the following contact finger.

    Either way, the steering wheel will most likely have to be removed. Can you do it yourself? If you disconnect the battery, if you are comfortable doing it. If not, take it to the dealership.

    LG-D851 ?
     
Loading...