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I believe most horns have a relay and the 12v+ is already at said relay.
When the horn ring makes contact it GROUNDS the relay (completing the
circuit) and the relay contact points connect. That passes through the
12V+ to the horns. So, typically the horn ring simply grounds the relay
to activate it. Sorry too late for me to check the manual for Tiger
specifics but MOST cars function that way.
 Think of yourself standing at a light switch in the house. When
someone presses you on the shoulder (connecting to ground) you and the
switch act like the relay moving the switch to the on position. This
then send power to the light (horn). When the person pressing on your
shoulder releases you turn the switch off. Hope that helps.
On 9/23/2023 5:59 PM, Robert Wanty wrote:
> I am working on wiring the horns for the first time since my 15 year
> restore. I am working with the original wiring harness and horns.
> Starting at the horns there is one on each side with a jumper wire
> between the two horns, there are 2 purple wires leading to each horn,
> one wire on each side is hot and wired to the fuse box the second wire
> is not hot or grounded. I installed a new horn ring from SS and have
> one wire from the contact on the horn ring and a second wire for the
> circle contact off the signal switch, I think the wire for the circle
> contact should be hot but I don't seem to have a connector for it in
> the harness under the dash and nothing for the wire to the horn ring.
> It would seem to me that I should have a hot wire to the ring contact
> then a hot to the horns when the horn ring is pressed. but the wiring
> harness does not seem to follow that way of thinking.
> The wiring diagram is some help but as usual my limited knowledge on
> this will probably start a fire.
> Any help would be appreciated, I would rather not rewire the circuits
> so hopefully I can restore the Lucas system.to <http://system.to> its
> original splendor.
>
>
> Bob
>
>
> _______________________________________________
>
> tigers@autox.team.net
>
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<p>I believe most horns have a relay and the 12v+ is already at said
relay. When the horn ring makes contact it GROUNDS the relay
(completing the circuit) and the relay contact points connect.
That passes through the 12V+ to the horns. So, typically the horn
ring simply grounds the relay to activate it. Sorry too late for
me to check the manual for Tiger specifics but MOST cars function
that way.</p>
<p>Â Think of yourself standing at a light switch in the house. When
someone presses you on the shoulder (connecting to ground) you and
the switch act like the relay moving the switch to the on
position. This then send power to the light (horn). When the
person pressing on your shoulder releases you turn the switch off.
Hope that helps.<br>
</p>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">On 9/23/2023 5:59 PM, Robert Wanty
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAOCAEMVSUMFnzga3=jFdT5=oW9+Rf-1At=E=6sid5w2eSE6gjQ@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">I am working on wiring the horns for the first time
since my 15 year restore. I am working with the original wiring
harness and horns. Starting at the horns there is one on each
side with a jumper wire between the two horns, there are 2
purple wires leading to each horn, one wire on each side is hotÂ
and wired to the fuse box the second wire is not hot or
grounded. I installed a new horn ring from SS and have one wire
from the contact on the horn ring and a second wire for the
circle contact off the signal switch, I think the wire for the
circle contact should be hot but I don't seem to have a
connector for it in the harness under the dash and nothing for
the wire to the horn ring.
<div>It would seem to me that I should have a hot wire to the
ring contact then a hot to the horns when the horn ring is
pressed. but the wiring harness does not seem to follow that
way of thinking.<br>
<div>The wiring diagram is some help but as usual my limited
knowledge on this will probably start a fire.</div>
<div>Any help would be appreciated, I would rather not rewire
the circuits so hopefully I can restore the Lucas <a
href="http://system.to"; moz-do-not-send="true">system.to</a>
its original splendor.</div>
<div><br>
</div>
<div><br>
</div>
<div>Bob </div>
<div>Â </div>
<div><br>
<div>Â Â </div>
</div>
</div>
</div>
<br>
<fieldset class="moz-mime-attachment-header"></fieldset>
<pre class="moz-quote-pre"
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