CrimeStopper horn onboard relay question
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=42514
Printed Date: July 06, 2025 at 11:52 PM
Topic: CrimeStopper horn onboard relay question
Posted By: brentmc79
Subject: CrimeStopper horn onboard relay question
Date Posted: November 08, 2004 at 2:05 PM
I just picked up a CrimeStopper SecurCAR CS-2004DC which I'll be installing into a 94 Civic EX Coupe. My question is this. Can (or should) I use the onboard relay for the horn output? If needed, I can post up pics of the instructions/wiring diagram.
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I only install things in my car, cuz I don't wanna screw up anybody elses...
Replies:
Posted By: Teken
Date Posted: November 08, 2004 at 4:01 PM
The first thing you need to do is verify the maximum current draw from the vehicles horn. Check the fuse rating under the dash, or the engine bay this will tell you.
The next thing is to read what the current rating is on the alarm unit. If it is within the capabilities of the alarm systems internal relay, then yes hook it up.
If not, simply use an external 30-40 ampere relay. Remember, that a horn when first pulsed draws alot of current, opposed to simply being sounded continously given the same circumstances.
ie, Inrush current is higher during initial start up / firing of the horn.
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Knowledge is power. But only if you apply that knowledge in a positive way, which promotes positive results in others.
EVIL Teken . . .
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