Re: [FWDLK] Relay Question

In this case, the Chryslers and imperials had a very loud and massive horn(s), the lesser brands had much wimpier horns.

A relay has a trigger or signal wire which makes solenoid inside to bridge a heavier supply wire to activate the horn )or other devise)

The draw of whatever you are trying to work determines if a relay is needed. The horn ring/button gets its power thru the steering column in various ways and it's much safer to just use a slight current to trigger the relay which then switches heavier wires to activate the horns.

Driving lights also use relays to protect the switch from arcing inside when switched on.

Ray

On Aug 24, 2009, at 10:26 PM, JLSAVARD@xxxxxxx wrote:

Horns fed by a relay are louder and have a more "crisp" response, seemingly more fitting for a more expensive car. No relay means that the cars are cheaper to produce.

Chrysler corp was always interested in saving a buck.

Joe Savard, Lake Orion, Mi.

In a message dated 8/24/2009 10:40:08 A.M. Eastern Daylight Time, ronbo97@xxxxxxxxxxx writes:

Hey Everyone -

Why were senior 57-9 Mopars (Desoto, Chrysler, Imperial) built with horn and
starter relays, while Plymouth and Dodge were not ?

Ron

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