Results 1 to 10 of 10

Thread: How I fixed my broken horn

  1. #1
    Van Fan
    My Van(s):
    One 1985 Toyota Van One 1990 Toyota Previa
    Join Date
    Sep 2013
    Location
    California
    Posts
    94
    Rep Power
    1

    Question Horn Working is a Coin Toss

    Hi everyone!

    I did not see this problem yet, so I thought I would ask/post!

    I would say that 50% of the time, my horn works, but 50% not. (And more so not!) Now that I think about it, it doesn't work when I want it to enough!

    I was just wondering if anyone experienced anything like this or had any idea as to how to fix/repair it, or what it could be? I am wondering if something is dirty inside on the steering wheel making the contact only happen once in a while.

    Any place to start is very greatly appreciated!!

  2. #2
    Administrator timsrv's Avatar
    My Van(s):
    Lots of them
    Join Date
    Jun 2010
    Location
    SW WA ST
    Posts
    6,001
    Rep Power
    10

    Re: Horn Working is a Coin Toss

    There's a slip ring and contact (brush) under the steering wheel. Most likely the slip ring is bent, the brush is worn out or both. If you pull the steering wheel it will be pretty self explanatory. The brush is mounted on a spring and should be about 1/2" long. After a while they get worn down to the spring and the horn then becomes intermittent. Tim

  3. #3
    Van Fan AnotherUser's Avatar
    My Van(s):
    1986, 2wd
    Join Date
    Jun 2014
    Location
    Pacific Northwest
    Posts
    78
    Rep Power
    1

    How I fixed my broken horn

    This was done on a 1986 2WD Van

    Over the last few years my horn has intermittently worked, some days I'm able to use it and others not at all. Recently it has stopped working all together.

    Inside your steering column there is a metal ring that comes in contact with a spring loaded contact point. That contact point gets worn down and it no longer touches the metal ring, preventing the horn from working.

    Rather than trying to get a new contact point, I decided to raise the metal ring.

    How to get in there:

    Directly under the steering wheel on the main steering wheel unit is one phillips screw in the center, remove this

    Name:  xigbDAW.jpg
Views: 439
Size:  58.3 KB

    Remove the center of the steering wheel

    Name:  M9vmklx.jpg
Views: 351
Size:  79.3 KB

    Disconnect wire to completely remove the center pad

    Name:  klVmogk.jpg
Views: 351
Size:  69.3 KB

    Mark a line on the top of the bolt and on the metal plate above it so you can put it back on straight

    This bolt is a 19mm. Loosen it until it is almost off, but still keep the bolt on. In order to get your steering wheel off you will need to use a lot of force. Hit it from behind as hard as you can while moving around, then start tugging from the front as hard as you can. It might not seem like it will come off, but eventually it should break free and because the bolt is still partially on it won't slam your face.

    Name:  QSrlDOB.jpg
Views: 341
Size:  74.6 KB

    The contact point that wears down

    Name:  brV9r1r.jpg
Views: 356
Size:  58.6 KB


    Remove the metal ring from the back of the steering wheel

    Name:  UEhRUhw.jpg
Views: 405
Size:  65.3 KB

    At this point you should clean the ring if there is any build up or a rough line around the edge by lightly sanding it.

    To raise the ring high enough to touch the contact point I used a card the same thickness as a standard credit credit.

    Trace and cut out

    Name:  buHpTAM.jpg
Views: 350
Size:  88.9 KB

    Name:  u0P2zJ0.jpg
Views: 343
Size:  63.8 KB

    Name:  7WB0iZA.jpg
Views: 344
Size:  60.3 KB

    That's it. Reinstall everything the way it came off.

    It's important to note that before you test it, your steering wheel bolt should be fully tightened to get the metal ring close to the contact point. Also, the center pad needs to be reinstalled back into the metal brackets before the horn will work. Just plugging in the wire and testing it won't work, it needs to be touching the metal brackets.
    Last edited by AnotherUser; 02-05-2017 at 09:34 PM.

  4. #4
    Administrator
    My Van(s):
    89' TownAce Auto 87' 4x4 5spd LE 87’ 4x4 5spd Cargo
    Join Date
    Mar 2014
    Location
    SEATTLE, WA
    Posts
    1,899
    Rep Power
    10

    Re: How I fixed my broken horn

    Nice write up and illustrations!!

    Thank you for posting it step by step form

    JDM

  5. #5
    Forum Newbie
    My Van(s):
    1985 cargo
    Join Date
    Nov 2016
    Location
    Waterloo
    Posts
    16
    Rep Power
    1

    Re: How I fixed my broken horn

    Perfect

  6. #6
    Van Fan Dogfish's Avatar
    My Van(s):
    (2) 86 2WD auto LE's (Daily driver has 335k+miles) (1) 87 4WD auto Conversion (90k orig miles) (1) 87 4WD auto LE (1) 88 2WD auto LE (1) 89 4WD auto Conversion (1) 89 4WD auto LE... Still lookin
    Join Date
    Sep 2010
    Location
    SW Pennsylvania
    Posts
    86
    Rep Power
    1

    Re: How I fixed my broken horn

    Quote Originally Posted by Dirtlivingston View Post
    Perfect
    Nice fix..!

    For those that don't have CC material, it can be made by saving supermarket plastic bags and "ironing" them to the thickness you desire. Like this:

    http://www.relevedesign.com/how-to-fuse-plastic-bags/

    Google "iron plastic bags" for tons of hits.

    I keep this in mind for washers bushings and spacers. (Yes, I'm a cheap bastard...)

    -Jim

  7. #7
    Forum Newbie Grappler's Avatar
    My Van(s):
    1987 Cargo: 'LOLVAN'
    Join Date
    Feb 2017
    Location
    Los Angeles
    Posts
    24
    Rep Power
    1

    Re: How I fixed my broken horn

    I had this same issue and finally got around to fixing it, though using a slightly different approach.

    The part at issue for me was the contact itself rather than the ring. So I uncreatively bought a new one.

    It's toyota part number 84312-20011, and about 6-7 bucks. Fairly straightforward install with one annoyingly tiny C-clip. As shown in the photo, when these things wear down they ... really really wear down!


  8. #8
    Van Fan AnotherUser's Avatar
    My Van(s):
    1986, 2wd
    Join Date
    Jun 2014
    Location
    Pacific Northwest
    Posts
    78
    Rep Power
    1

    Re: How I fixed my broken horn

    Quote Originally Posted by Grappler View Post
    I had this same issue and finally got around to fixing it, though using a slightly different approach.

    The part at issue for me was the contact itself rather than the ring. So I uncreatively bought a new one.

    It's toyota part number 84312-20011, and about 6-7 bucks. Fairly straightforward install with one annoyingly tiny C-clip. As shown in the photo, when these things wear down they ... really really wear down!

    The ring on mine was fine, but it was the contact point that was worn down.

    Mine was about as worn down as yours, but rather than replace it, I raised the metal plate to fill in the gap missing from the contact point. The main reason why I did this was because I wanted a quick fix, rather than waiting for parts.

    This worked for about a year, but now the contact point is almost completely gone and my horn no longer works.

    So I will be ordering a contact pin off eBay for $6.50 https://www.ebay.com/itm/GENUINE-TOYOTA-HORN-CONTACT-PLATE-OEM-84312-20011-/321670894574

    If you don't want to buy a contact point, you can also use a 22 bullet casing that is placed over the old contact point. I don't know how long this would last though

    How hard was it to get access to the c-clip? What did you have to remove to get to it? Thanks

  9. #9
    Forum Newbie MssnBlu's Avatar
    My Van(s):
    '89 4wd
    Join Date
    Apr 2019
    Location
    Hawaii Island
    Posts
    9
    Rep Power
    0

    Re: How I fixed my broken horn

    Just did the horn fix. Metal ring was not touching contact point. Took the ring off using instructions above (thank you for the great write up). Used a hot glue gun to create a small raised bead for ring to sit on. Re-installed everything. Glue can be peeled off later if problem re-develops. For now horn works great.

  10. #10
    Van Addict trestlehed's Avatar
    My Van(s):
    1987 4WD Automatic
    Join Date
    Sep 2010
    Location
    On the outskirts of Mordor
    Posts
    400
    Rep Power
    1

    Re: How I fixed my broken horn

    Several years ago my '87 Toy pickup had this problem.

    A thread on one of the Toy Truck websites had a quick fix: Use a used .22 caliber shell.
    Just place it over the top of the horn contact spring pin and you're good to go.

    I didn't do this. I just bought the new part from Toyota.

    Hope this helps somebody.
    "You came in that thing?... You're braver than I thought!" - Princess Leia

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •