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97 crown vic, horn with siren

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=102221
Printed Date: May 16, 2025 at 1:05 AM


Topic: 97 crown vic, horn with siren

Posted By: kendixon69
Subject: 97 crown vic, horn with siren
Date Posted: January 19, 2008 at 8:32 PM

I HAVE A 97 FORD CROWN VICORIA and was wanting to put a relay set up to blow the car horn when the alam goes off can anyone help me correct my mistake on this circuit or just give me a better one to use.

Connect your car horn to your car alarm

Parts: 1. diode pick it up at Radio shack 2.normally close relays(just the standard one like you used for the remote start).
Step 1. Connect the positive of the diode to the positive wire of the siren.
Step 2. Tap the orange alarm wire, which is then connected to pin 85 of 1st relay, pin 86 of the relay is connected to the negative of the diode. Pin 30 is connected with a constant 12 volt, pin 87 is connected to pin 86 of the 2nd relay.
Step 3. Locate the BLACK/ white dome-light output of the alarm and connect it to pin 85 of the 2nd relay.
Step 4. Pin 30 of the 2nd relay is connected to a constant 12 volt and pin 87 is connected to the positive of the car horn. Only when the alarm is triggered will the car horn honk

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kenneth l dixon



Replies:

Posted By: Big Dog
Date Posted: February 15, 2008 at 11:11 AM

How about this? :

posted_image



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Prepare your future. It wasn't the lack of stones that killed the stone age.


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