2002 Civic with Karr alarm
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=21313
Printed Date: July 18, 2025 at 6:06 AM
Topic: 2002 Civic with Karr alarm
Posted By: sdazn02civic
Subject: 2002 Civic with Karr alarm
Date Posted: November 11, 2003 at 2:33 PM
Hey there people I have a 2002 honda civic with the Karr alarm model 2040. I got the diagram a couple of months ago and compare it to the color wires that I have some of it match up and some don't. But anyway my question for today is when I arm my alarm the chirp is coming from the stock horn of the car I wanted to add a siren to it and i've tried connecting the horn input (+) to the horn output (-) but it not working is there another way to do this. Please help
Replies:
Posted By: profuse007
Date Posted: November 11, 2003 at 2:46 PM
-yo, if you have the DEI techsoft diagram, then all the wires are correct. i just did a 03 civic which are the samthing.
-the output for the siren will mostly likely to be a positive or always. you cant have two diff polarity together, it will short your unit out. what you have to do is reserve the polarity by using a relay. take sometime to study the relay on this site, it will help you understand better. but below ill will specify the reverse polarity for ya.
86-input horn(+)
85-ground
30-ground
87-horn output(-)
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