viper 771 xv door lock, unlock relay
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=81866
Printed Date: July 13, 2025 at 7:24 AM
Topic: viper 771 xv door lock, unlock relay
Posted By: tjbaze
Subject: viper 771 xv door lock, unlock relay
Date Posted: August 21, 2006 at 12:51 PM
I am installing a viper 771 alarm in a 2002 Dodge Ram 2500 diesel Pickup...electric door locks , but no central locking ..... 2 issues, The Manual show a green / blue three wire harness for lock - unlock. However, in the kit these wires plug into a relay. There are no wiring diagrams for the relay...It looks like 2 wires , lock - unlock positive, same negative, but unsure if the fused wire is for constant 12v or what. Also, where does the on - off toggle supplied with the kit normally tap in, no info in manual, only for the valet button. Thanks in advance Tom
Replies:
Posted By: captainzab
Date Posted: August 21, 2006 at 3:54 PM
Are we talking about the 451m? because you are talking about the green and blue wire. What kit are you talking about?
2002 Dodge Ram
the Door Locking System is a 1-Wire, to LOCK requires a (-)Negative thru a 820 Ohm Resistor and to UNLOCK requires a (-)Negative thru a 330 Ohm Resistor, some units require 2 extra relays part #775, to connect,
See if that helps
------------- Note: You Always Dont Get What You Pay For.
Posted By: tjbaze
Date Posted: August 22, 2006 at 11:36 AM
Sorry about that, the install manual on the viper 771 xv refers to a 3 pin connector, middle not used, green and blue lock and unlock, however this is a harness that goes to the 451M relay to which there is no info on.So my question is , does this 451 alleviate the need to use outboard relays, or can I wire it direct in? Thanks TB
Posted By: lsondubz
Date Posted: August 22, 2006 at 12:40 PM
The 451M is a relay module so you dont need any relays...You should do as follows: 451M PURPLE / blk goes to ground for negative trigger locks. WHITE/ Blk and BROWN / blk is not used. Solder 820ohm resistor in the GREEN/ blk wire and a 330ohm resistor into the blue/blk wire and connect the outputs of those into one wire which taps into the WHITE/ green wire in the truck. The small gauge 3 pin harness should plug into the 4200 and everything should work out fine...
Posted By: tjbaze
Date Posted: August 22, 2006 at 2:09 PM
That is exactly what I needed, Thanks so much, I guess thats why the fuse blew when I put the purple to hot, oh well.....Where do you normally tap in the disable on-off toggle switch that comes with the kit?
Posted By: Hymer
Date Posted: August 22, 2006 at 2:14 PM
It is meant to be wired to the nuetral saftey switch on a rem start, but if you ground one side of it it will either enable or disable the unit (i think) Im not a DEI guy....
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Posted By: tjbaze
Date Posted: August 22, 2006 at 3:22 PM
Just found that that in the book, I guess I need glasses ugh...Thanks you guys for the help!
Posted By: tjbaze
Date Posted: August 22, 2006 at 10:55 PM
Fit well in a pre drilled hole to the left of the inside glove box frame...tnx tb
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