key in fender
Thread Starter
Melting Slicks
Joined: Mar 2010
Posts: 2,731
Likes: 15
key in fender
I just bought a 74 Vette. Although I had a 75 Vette years ago I never really knew what the key switch by the Stingray emblem did. I thought it was security but what exactly does it do when switched? Thanks!
Le Mans Master
Joined: Oct 2006
Posts: 7,123
Likes: 433
From: Gladstone MO
C3 of Year Finalist (appearance mods) 2019
The relay for the horn, on the 74 I have, is under the console front of the shift lever. The horn is mounted behind the drivers' side rear tire.
As Ganey pointed out, it's good bet the horn diaphragm is stuck. tapping may pop it loose.
Melting Slicks
Joined: Dec 2000
Posts: 3,407
Likes: 2
From: Carmichael CA
I have a 75 and according to my Haynes repair manual the 74 does not have a starter disconnect...that appears to have been added in 75...so at least you don't have to worry about getting stranded. The alarm system is tied to the interior lights through the door jamb switches, so I guess the interior might flash.
You should get yourself an Assembly and Installation Manual (AIM) for a 74...it will show you where the alarm system components are located. A complete wiring diagram is also a good idea...the Haynes repair manual has the best one I've seen...it does show the wiring for the 73 alarm system which looks like is also the same for the 74. An owners manual is also a good place to see what the ***** and stuff do.
You should get yourself an Assembly and Installation Manual (AIM) for a 74...it will show you where the alarm system components are located. A complete wiring diagram is also a good idea...the Haynes repair manual has the best one I've seen...it does show the wiring for the 73 alarm system which looks like is also the same for the 74. An owners manual is also a good place to see what the ***** and stuff do.
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Thread Starter
Melting Slicks
Joined: Mar 2010
Posts: 2,731
Likes: 15
If it is the horn clicking that brings on another issue. It happens as soon as I turn on the switch which means if the horn was working it would be sounding. What triggers the system to sound? BTW thanks to everyone for the info!
Burning Brakes
Joined: Oct 2003
Posts: 1,090
Likes: 74
From: New Carlisle IN
One of my door ajar switches is bad on my 76. Everytime I try to set the alarm it goes off because the switch says the door is open even when it is closed. Is your door ajar light on the center dash on all the time? If not that then the switch for the hood could be bad.
Melting Slicks
Joined: Mar 2007
Posts: 2,520
Likes: 11
From: Hinckley OH
Yep. It sounds like you have two problems. Your relay is ticking because one of the switches that triggers the alarm is grounding out and the horn isn't blowing because it is either broken or the wiring to it is broken.
