Jump to content

Horn failed MoT


Ryan

Recommended Posts

This morning my car failed its MoT on the horn. It toots when I try to lock the car with a window open, but nothing when the buttons on the steering wheel are pressed. I hardly ever use the horn so I hadn't noticed until now, and because I got the warning toot, I assumed everything was okay.

As the horn partly works, I assume that the relay and fuse are okay, so it must be something at the steering wheel end. I haven't got the wiring diagrams to hand, so I don't know what's between the button and the relay. Unfortunately, my friendly mechanic is away for Easter so I can't call on him. Can anyone assist? I have until 3rd April to get it sorted.

Link to comment
Share on other sites

I'd agree - it sounds like it can only be the rotary coupler or the switches themselves (less likely).

I have a rotary coupler in the spares box you're welcome to have if your one doesn't get there in time.

Rob.

Link to comment
Share on other sites

I've now managed to access the wiring diagrams and it appears the problem could be the rotary coupler. I've ordered one and just hope it will be here on time.

Rotary coupler is a common failure. Care has to be taken when installing to make sure it doesn't unwind.

Link to comment
Share on other sites

I'd agree - it sounds like it can only be the rotary coupler or the switches themselves (less likely).

I have a rotary coupler in the spares box you're welcome to have if your one doesn't get there in time.

Rob.

Thanks for the offer Rob.

Link to comment
Share on other sites

Rotary coupler is a common failure. Care has to be taken when installing to make sure it doesn't unwind.

Noted, but I think most of my care will be directed towards the controlled explosion bolted to the front of the steering wheel.

Link to comment
Share on other sites

Rotary coupler is a common failure. Care has to be taken when installing to make sure it doesn't unwind.

I would be interested as to the facts about airbags being deployed when (dis)connecting. Think it's a bit of urban myth like using a mobile phone on a pterol forecourt.

I personally have connected and disconnected the airbags loads of times without even disconnecting the battery and it has never deployed.

Wouldn't recomment it tho :)

Link to comment
Share on other sites

  • 1 year later...

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.

×
×
  • Create New...

Important Information

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