Jump to content
Sign in to follow this  
DaveR

Td5 horn wont turn off

Recommended Posts

2001 Discovery Td5.

I was woken this evening - along with most of my neighbours - when the horn on my Disco spontaneously started to sound. Disarming and rearming the alarm had no effect. The horn was sounding continuously. Eventually, the only way to silence it was to disconnect the battery earth lead.

Any ideas what would have caused this and how to fix it in the morning????

Dave

Share this post


Link to post
Share on other sites

When you say the horn do you mean the vehicle horn (beep beep) or the BBUS siren (banshee wailing) as the possible causes are quite different.

Share this post


Link to post
Share on other sites
2001 Discovery Td5.

I was woken this evening - along with most of my neighbours - when the horn on my Disco spontaneously started to sound. Disarming and rearming the alarm had no effect. The horn was sounding continuously. Eventually, the only way to silence it was to disconnect the battery earth lead.

Any ideas what would have caused this and how to fix it in the morning????

Dave

For the horn to sound it must be getting its power from somewhere. Locate where the horn actually is (somewhere behind the front grill I'd guess) and disconnect it before reconnecting the battery for yours and your neighbours sanity!

Firstly I would check the steering wheel switches they do have a bit of a habbit of playing up and its the easiest bit to get at.

If no joy there, I would check the wiring from the horn to see if there is any damage/shorting.

From memory although could be wrong on this, the alarm is a seperate sounder from the horn although the horn sounds for incorrect lock procedure.

Mark.

Share this post


Link to post
Share on other sites
When you say the horn do you mean the vehicle horn (beep beep) or the BBUS siren (banshee wailing) as the possible causes are quite different.

It was the horn (Beep beep) except it didn't go beep beep it went beeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeep for about 10 mins until I could disconnect the battery.

Share this post


Link to post
Share on other sites
For the horn to sound it must be getting its power from somewhere. Locate where the horn actually is (somewhere behind the front grill I'd guess) and disconnect it before reconnecting the battery for yours and your neighbours sanity!

Firstly I would check the steering wheel switches they do have a bit of a habbit of playing up and its the easiest bit to get at.

If no joy there, I would check the wiring from the horn to see if there is any damage/shorting.

From memory although could be wrong on this, the alarm is a seperate sounder from the horn although the horn sounds for incorrect lock procedure.

Mark.

Thanks Mark,

I'll check those pesky steering wheel switches this morning. They do seem less than rock solid so hope (fingers crossed) they are the problem. The other thought that occurred to me was a faulty horn relay. Now to work out which relay of several dozen it is...

Share this post


Link to post
Share on other sites
Thanks Mark,

I'll check those pesky steering wheel switches this morning. They do seem less than rock solid so hope (fingers crossed) they are the problem. The other thought that occurred to me was a faulty horn relay. Now to work out which relay of several dozen it is...

Stop press!

Son had been clambering about the car ysterday and beeped the horn a few times. One of the steering wheels was sitting squint. i guess when the car cooled down in the night, contact was then made and the horn went beeeeeeeeeeeeep.

Moral of story - don't let enthusiastic 3yr old boys loose in the car.

Thanks for your suggestions guys.

Dave

Share this post


Link to post
Share on other sites

It just happened to us and we resolved it by hitting the horn once hard and it stopped - the switches or pressure was malfunctioning.

 

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...

Important Information

We use cookies to ensure you get the best experience. By using our website you agree to our Cookie Policy