Alarm 74
Thread Starter
3rd Gear
Joined: Jul 2011
Posts: 3
Likes: 0
Alarm 74
Has anyone ever bothered to fix the security system on there car? I have a 74 and the horn works but the alarm doesn't. I am not sure how hard it is to fix seeing that everything seems to be hidden. Any suggestions?
Advanced
Joined: Jul 2007
Posts: 72
Likes: 2
My son and I both have 74's and in both of ours the alarm system did not work when we first got the cars. In both cases the problem was the key switch in the fender. The switch is easy to remove, just remove the spring clip on the inner fender side and slide the switch with wires attached out of the fender. At that point you can put a jumper wire across the switch (or remove the wires from the switch and short them together). If the horn blows with a door or hood open you know the problem is the switch. Replacement switches are readily available however I was able to clean mine (and my son's) in a brass cleaning solution I made up using common household chemicals.
Le Mans Master
Joined: Aug 2006
Posts: 7,426
Likes: 1,559
From: mount holly NC
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
Welcome to CF and enjoy your new Vette!
Here's a schematic if you need it.
Here's where all the parts are:
Here's a schematic if you need it.
Here's where all the parts are:
Last edited by Peterbuilt; Jul 25, 2011 at 12:48 AM.
Race Director
Joined: Aug 2007
Posts: 10,977
Likes: 19
From: Canboro Ontario
Welcome to the forum. You have all the info above for you to fix. You only need it to work if you want it, that is up to you. I made mine working in my 73, others may or may not have done this, depending on the cars purpose.
Administrator
Joined: Jul 2000
Posts: 53,982
Likes: 6,209
From: About 1100 miles from where I call home.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
