2002 honda civic relay siren help

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=30165
Printed Date: June 10, 2024 at 11:22 PM

Topic: 2002 honda civic relay siren help

Posted By: sdazn02civic
Subject: 2002 honda civic relay siren help
Date Posted: April 11, 2004 at 1:16 PM

I have a Karr alarm system in my car right now and the alarm use the stock horn as a siren for the alarm. I want to add an aftermarket siren ( 6 tones). I have study and research and found alot of information regarding this, but the setup for the relay are different. And I have a negative output from the alarm.

Here what I found:

86-negative out put from alarm

85-ground

87-constant 12v fused

30-out to horn+ aftermarket siren

Is this diagram correct? Please help any information will be very helpful. Thanks!!!

Replies:

Posted By: desh187
Date Posted: April 11, 2004 at 2:41 PM

this relay configuration is to change your negative output to positive which is correct,now the only thing to remember is that a horn output as it is on your alarm is set as pulsed and a siren output is steady,some alarms have programmable features where this is possible to switch.
if your alarm (which iam not familiar with)does not have this feature,use a relay and before mounting the siren,just have it outside and trigger the alarm.if it sounds okay(usually it would be a pulsing noise-which would sound funny)then mount the siren.

Posted By: sdazn02civic
Date Posted: April 11, 2004 at 4:20 PM

Thanks for the info, that really help.

Does anyone know how to make my alarm use the stock horn at a pulsed, but still have the aftermarket w/ 6 tone going as a steady output?