Horn output

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=1475
Printed Date: July 09, 2025 at 7:00 PM

Topic: Horn output

Posted By: sach_deva
Subject: Horn output
Date Posted: June 24, 2002 at 8:31 PM

Hi!,

quick question, i wanted to wire my factory horn instead of the alarm siren with my alarm. My alarm gives an negative output, do I need I relay if I wire it to my 92 Toyota corolla? If I do how would I wire it?

Replies:

Posted By: Chris Luongo
Date Posted: June 24, 2002 at 10:09 PM

The GREEN/ red horn wire at the steering column goes on to trigger the factory relay---so you don't need to install your own.

Does your alarm put out a pulsed output, or a steady one? One long, steady, horn blast would sound stupid, and possibly make the horn unhappy too. If it pulses on and off every second or two, you're all set.

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