door lock/unlock relays for viper alarms

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=18610
Printed Date: September 01, 2025 at 5:29 PM

Topic: door lock/unlock relays for viper alarms

Posted By: Insanez24kid
Subject: door lock/unlock relays for viper alarms
Date Posted: September 07, 2003 at 11:54 AM

in the installation guide for vipers...it says that the green and blue door lock/unlock wires should be used ONLY to activate realys but i was told that you can connect them directly to the car's unlock/lock wires WITHOUT using relays...is this true? i was taught to always use relayts but if you dont have to then that would be easier...someone please help!!! do you have to use relays or not?

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Derek

Replies:

Posted By: auex
Date Posted: September 07, 2003 at 2:09 PM

Depends on the car.

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Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.

Posted By: Insanez24kid
Date Posted: September 07, 2003 at 2:48 PM

so basically i can hook up the unlock/lock wires to the cars wires and if it doesnt work then i know to use a relay?

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Derek

Posted By: auex
Date Posted: September 07, 2003 at 8:40 PM

NO. You find out what type of locking system the vehicle has then you hook it up the correct way. If you just hook the wires up without verifying the type of locking system you run the chance of destroying the car's computer or the alarm.

-------------
Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.

Posted By: tarantados
Date Posted: September 11, 2003 at 5:12 PM

what if I have a negative pulse door lock system? do I need relays? coz im trying to hook it up too with a viper.

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