Anonymous

Horn stopped working

The all purpose forum for any TR7/8 related topics.
Post Reply
TR7Aaron
Wedge Pilot
Posts: 334
Joined: 16 Feb 2008 01:01
Location: USA
Contact:

Horn stopped working

Postby TR7Aaron » 08 Oct 2011 22:53

Suddenly, my horn stopped working. Everything else seems OK. I pulled the fuse box cover but there is no diagram under the lid (as I was expecting to see). Can anyone tell me which fuse(s) would control the horn and/or relay?
Thanks!

Image

Aaron
1976 TR7 FHC (an ongoing project)
Image

Beans
TRemendous
Posts: 7795
Joined: 15 Mar 2006 19:29
Location: Netherlands
Contact:

Postby Beans » 08 Oct 2011 23:41

Not that difficult to pull out the fuses and check them [:p]

<center>Image
<font color="blue"><i>1980 TR7 DHC (my first car, now restored and back on the road)
1981 TR7 FHC Sprint (better known as 't Kreng)</font id="blue">
<b>[url="http://www.tr7beans.blogspot.com/"]<u><b><font size="2"><font color="red">My Weblog</font id="red"></font id="size2"></b></u>[/url]</b></i></center>

supercass
Swagester
Posts: 625
Joined: 07 Sep 2009 02:12
Location: United Kingdom
Contact:

Postby supercass » 08 Oct 2011 23:44

In my experience, with horns, it's very often earthing issues. supercass

TR7Aaron
Wedge Pilot
Posts: 334
Joined: 16 Feb 2008 01:01
Location: USA
Contact:

Postby TR7Aaron » 09 Oct 2011 01:02

Well, it seems to be a non-issue now. I just came from the garage and it's now decided to work properly. The Lord of Darkness (and/or silence) seems to have given up this battle!

Aaron
1976 TR7 FHC (an ongoing project)
Image

FI Spyder
TRemendous
Posts: 8917
Joined: 03 Jul 2006 19:54
Location: Canada

Postby FI Spyder » 09 Oct 2011 01:34

They are grounded by the mounting bolt. I'd clean that up as well as the supply connection. I'd taken my horns apart to clean them up and paint them. The last one wouldn't work on car but would if connected directly to battery. Turned out I had reversed the two gaskets (different thicknesses). Once put back in correctly it worked fine.



- - - - TR7 Spider - - - - - - - - 1978 Spitfire - - - - - - 1976 Spitfire - - 1988 Tercel 4X4 - Kali on Integra - 1991 Integra - - Yellow TCT
Image

TR7Aaron
Wedge Pilot
Posts: 334
Joined: 16 Feb 2008 01:01
Location: USA
Contact:

Postby TR7Aaron » 03 Jun 2012 19:40

Well, they have decided to stop working (again). I have removed each and test by connecting directly to the battery and both work. I pulled the knob from the stalk and manually touched the two prongs together - nothing. Fuses seem to be OK. I'm guessing it has to be a connection or ground somewhere since this issue is intermittent.

Aaron
1976 TR7 FHC (an ongoing project)
Image

TR7Aaron
Wedge Pilot
Posts: 334
Joined: 16 Feb 2008 01:01
Location: USA
Contact:

Postby TR7Aaron » 03 Jun 2012 20:22

I'll correct myself - it was the horn relay. On the USA cars, it's located in the engine compartment, next to the wiper motor. Anyone have a part number for this?
Thanks.

Aaron
1976 TR7 FHC (an ongoing project)
Image

trekcarbonboy
Swagester
Posts: 940
Joined: 18 Oct 2010 15:38
Location: USA

Postby trekcarbonboy » 03 Jun 2012 23:48

Just take the relay to the local parts store. They are pretty standard and the numbers are right on them.

Craig '75 2.0 FHC
Image

Post Reply

Who is online

Users browsing this forum: No registered users and 348 guests