Horn stuck on, some dash lights out too

Electrical & Ignition

  1. jbooth35

    jbooth35 Member

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    Horn won’t quit blowing. This is the opposite problem most encounter when dealing with horn issues. I have confirmed that the wire running up the column is indeed grounded to the column without engaging the horn switch but nothing obvious is pinching the wire running up the steering column. The horn wasn’t engaging in the past before I had lowered and ‘rested’ the column on the drivers seat while I worked on the steering box, but I was careful when handling it. I’m guessing that I still aggravated something effectively closing the horn circuit. Is my only option pulling the wheel and looking into where the horn wire is grounding to the column?

    Hoping to button up the last few things so I can get the car inspected. I also noticed that the left turn signal light is not activated in the dash and I have no general dash illumination whatsoever. I did see a bulb hanging loose above the fuse box that may be the culprit but I didn’t see an obvious mounting point for that bulb. Hopefully the turn signal indicator is a replaceable bulb, although it looks like it may be a PIA to get to.

    65 polara
     
  2. tallhair

    tallhair Rufus "Mod Hair" Firefly Staff Member

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    Unhook the battery
     
  3. 67Monaco

    67Monaco Old Man with a Hat FCBO Gold Member

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    The wire from the horn then Unhook the horn relay.
     
  4. 69monaco

    69monaco Senior Member

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    Original steering wheel?
    The horn button feels normal when pussing it in....?
     
  5. jbooth35

    jbooth35 Member

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    Yes original wheel. I did disconnect the horn relay to stop the horn and I can confirm that the horn switch in the steering wheel works fine when tested independently. What I’m saying is the Black wire running from the relay, through the firewall and eventually up the steering wheel column is already grounded to the column somehow rendering the horn switch in the wheel useless or already activated.

    image.jpg
     
  6. 78Brougham

    78Brougham "Chump" FCBO Gold Member

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    Somethings not right there. That spade terminal shouldn't be bent over and touching the ring that circles the nut. That's gonna ground out and blow the horn constantly. Also there's quite a kink in the black wire, I'm sure it's fine but it shouldn't be like that.
     
  7. jbooth35

    jbooth35 Member

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    The terminal is not actually touching and the kink is not as bad as it appears in that picture, but the wire is already making contact with the steering column. I just don't know what I did that caused that wire to 'short' inside the column somewhere. I may run a wire outside the column to that spade connector and verify everything works fine. I certain that would work though based on some basic continuity tests. Are there spots in the column where that wire is likely to get pinched?
     
  8. 3175375

    3175375 Senior Member FCBO Gold Member

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    Pull the wire out of the column and inspect.
    It appears from the picture that the part highlighted below is not centered, but it may be due to the angle of the picture.
    CE568AD1-1B68-45E3-818F-2A591EDD5356.jpeg
     
  9. jbooth35

    jbooth35 Member

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    I can’t just remove the wire it seems without disassembly. The wire appears to terminate with a 90 degree connector about an inch down ..
    B0218067-9E37-4914-9707-50D87EC85608.jpeg
     
  10. 1970cat

    1970cat Senior Member FCBO Gold Member

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    did you have the steering wheel removed at some point prior to this problem? does the horn still blow when the black spring plate with the connector is removed?
     
  11. Polara_500

    Polara_500 Senior Member FCBO Gold Member

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    I don't have a 2 spoke wheel off at the moment, but this is what a 3 spoker from a 65 Polara w/tilt looks like on the bottom. The black wire goes down and makes a quick right to the spring loaded contact going to the slip ring on the column.
    upload_2020-8-6_20-20-28.png
    upload_2020-8-6_20-20-58.png
    upload_2020-8-6_20-22-37.png
    That white plastic collar is way taller w/tilt wheel, but I recall the 2 spoke wheels are similar on the bottom.
    Mike
     
    • Agree Agree x 1
  12. jbooth35

    jbooth35 Member

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    Never had the wheel off. Only dropped the column to disconnect the coupler. Yes the horn still sounds even with the connector removed.
     
  13. jbooth35

    jbooth35 Member

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    Thanks for the pics. It looks like I’m going to have to pull the wheel off and see where this wire is contacting the column where it shouldn’t.
     
  14. CBODY67

    CBODY67 Old Man with a Hat

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    What seemed to cause the horn issue? What has been apart and then re-installed? Is there a "wave" washer/contact that might be upside down? Some insulators which are not there any more? At least it's not a RimBlow!

    Just curious,
    CBODY56
     
  15. jbooth35

    jbooth35 Member

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    No idea of what caused the horn issue. It wasn't blowing before I pulled the battery over 3 years ago while I've been working on the car. Only thing I've touched near the horn would be the lowering of the steering column to disconnect the coupler to service the PS gear. For this I only slightly pulled the column towards the front seat and back again when re-connecting. Can't figure out why the wire is grounded to the column now, but it definitely is. Unfortunately my generic harmonic balancer and steering wheel puller doesn't quite fit this steering wheel so I'm off to the store tomorrow to grab another.
     
    • Thanks! Thanks! x 1
  16. 1970cat

    1970cat Senior Member FCBO Gold Member

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    i can't put my finger on it but something doesn't look right to me. there is nothing here:
    ce568ad1-1b68-45e3-818f-2a591edd5356-jpeg.jpg
    for this :
    upload_2020-8-6_20-22-37-png.png
    to make contact with. there should be a copper ring that the button rides on like this on the wheel side of that button so that it is only grounded when depressed:
    s-l300.jpg
    the black plate is a spring plate that allows the horn ring to spring back when released. image-jpg.jpg
    maybe the column is ok and you inadvertently re-grounded the column when working on it , triggering an old problem ?
     
  17. jbooth35

    jbooth35 Member

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    This gasket must be shot. There is continuity here between plate and inner column. How do I remove the large “spring clip?”
    BB5B6C2C-6B3A-4C00-A019-BBD9CF1D6B0D.jpeg
     
  18. jbooth35

    jbooth35 Member

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    Where can I find replacement parts like posted in the image?
     
  19. Polara_500

    Polara_500 Senior Member FCBO Gold Member

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    That spring clip is fun, a couple screwdrivers and at least one other pair of eyes to find the clip's final resting place once you get it off..... As for the parts, i've never looked for those...
     
  20. 1970cat

    1970cat Senior Member FCBO Gold Member

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