XJ6 & XJ12 Series I, II & III 1968-1992

Horn issue (help)

 
  #1  
Old 02-10-2019, 07:19 PM
Junior Member
Thread Starter
Join Date: Feb 2019
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Default Horn issue (help)

So I have a 1987 Jaguar XJ6 that I recently purchased and am working through correcting issues. I am to the horn. The previous owner installed a "button" that connects the purple/black to one terminal and the black ground to the other. When I connect back to the original wiring set up (purple/black to lower steering column tab and black to upper steering column tab) the horn sounds and won't stop. I then replaced the relay. Same issue. Then, I removed the steering pad and all of the horn mechanisms in the steering wheel, but left the brass rod in. Still sounds. When I move the steering wheel (turn and telescope) it then goes on and off as i turn it. Seems like something might be grounding the steering column (?). It even sounds when I remove the brass rod. Any thoughts or theories are very much appreciated. Not crazy about the "button" option unless completely out of ideas (ugh!) Thanks in advance
 
  #2  
Old 02-11-2019, 05:58 AM
Jose's Avatar
Veteran Member
Join Date: Mar 2007
Location: Florida
Posts: 5,822
Received 1,338 Likes on 1,088 Posts
Default

obviously the previous owner had problems with the horn and modified it to make it work.

are the wiring connections at the horn relay per the S 57 Wiring Guide?

I would consult the S 57 Wiring Guide, if you don't have it, download it free at my website below.
 
  #3  
Old 02-11-2019, 07:13 AM
Veteran Member
Join Date: Mar 2008
Location: Pacific Northwest USA
Posts: 20,148
Received 6,548 Likes on 4,860 Posts
Default

Originally Posted by Robbo9 View Post
Seems like something might be grounding the steering column (?)
Inside the column are a couple of brass contact rings. One of them probably slipped out of place and is grounding the inner column to the outer column. Or something like that.

I've never had a column apart so I'm not much help. But search the archives for a couple good write-ups with pics. They might be in the "XJS" section. The XJS used the same design column for many years.

Cheers
DD
 
  #4  
Old 02-12-2019, 06:29 PM
Senior Member
Join Date: Jan 2007
Location: North Carolina, USA
Posts: 641
Received 183 Likes on 99 Posts
Default

Historically I've always stated that the easiest way to repair the inner steering column fault was just by replacement.
I've never actually had one apart....
I did comment on one post about replacing the entire column, and the guy came back and said he had thought about it a bit, and decided to try sliding a drinking straw on the horn push rod... He claimed that fixed the problem of the horn continuously blowing, and had restored the use of his horn... Whether that would work in most cases is a guess, but may be worth trying before repair or replacement...
Cheers,
David
shop.EverydayXJ.com
 
  #5  
Old 02-13-2019, 09:56 AM
Veteran Member
Join Date: Jul 2012
Location: Walnut Creek, California
Posts: 5,730
Received 1,945 Likes on 1,569 Posts
Wink

David:

That makes a lot of sense !! The horn push rod is intended to be insulated and he contacts to ground made at the slip ring at the base of the column. the insulation has failed. The soda straw restores the isolation.

Problem: :One of our local governing body has decided that the straws are corrupting the environment. no more straws for out beverages??

Carl


 
  #6  
Old 02-13-2019, 10:22 AM
Veteran Member
Join Date: Jul 2012
Location: Walnut Creek, California
Posts: 5,730
Received 1,945 Likes on 1,569 Posts
Cool

IE quirks ths AM. Not sure if the post stuck.

Raining out. Hibertnation time..
 
  #7  
Old 02-13-2019, 11:56 AM
Senior Member
Join Date: Sep 2017
Location: Lincoln Ontario
Posts: 266
Received 52 Likes on 35 Posts
Default

I would use a length of heat shrink tubing - much more durable over time.
 
  #8  
Old 02-13-2019, 01:31 PM
Veteran Member
Join Date: Jul 2012
Location: Walnut Creek, California
Posts: 5,730
Received 1,945 Likes on 1,569 Posts
Cool

Great.

Don't let local Gov's know this.! They say straws do not decompose. so, may under that "logic" decide to forbid shrink tubing..

Carl
 
  #9  
Old 02-13-2019, 03:34 PM
Senior Member
Join Date: Jun 2015
Location: Florida
Posts: 678
Likes: 0
Received 184 Likes on 129 Posts
Default

MY 2 cents:
When I installed the Momo steering wheel in my car, I left the horn rod off to drive the car to make sure that the wheel was in the correct position. As soon as I turned the wheel the horn started to sound. The insulation at the bottom of the horn rod isolates the horn contact rings from ground.
So besides the drinking straw thing, Ian's suggestion of using shrink tubing is the next best bet, bearing in mind that the insulation used at the bottom of the horn rod is made of teflon and it rubs on the horn contact rings all the time. Eventually, the shrink tubing may wear thin. If using the shrink tubing, make sure that it is very smooth after shrinking and add as many as necessary to make it the correct thickness. Lubricate before installation.
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Lance 99
XJS ( X27 )
10
01-11-2015 11:41 AM
kingfisher
XJ XJ8 / XJR ( X308 )
7
09-12-2014 08:32 PM
magewulf
X-Type ( X400 )
0
10-30-2013 06:38 PM
Bostoncamaro
PRIVATE For Sale / Trade or Buy Classifieds
1
02-03-2012 01:49 PM
XJkid
XJ6 & XJ12 Series I, II & III
9
10-17-2011 08:56 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread
Quick Reply: Horn issue (help)


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: