Viper 350 HV

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=19909
Printed Date: July 13, 2025 at 6:15 PM

Topic: Viper 350 HV

Posted By: CarAudioPrez
Subject: Viper 350 HV
Date Posted: October 10, 2003 at 9:09 AM

Hey guys. I am installing a Viper 350HV alarm on a 85' Ford pickup. It has power door locks on it. My question is: do I need the 'DEI 451M' add-on in order for my door locks to work on the alarm? This particular viper model has polarity outputs and it comes with a 2 wire harness connection harness for the door locks. In the past I've used the 300esp model a coulpe of times which come with the relays already but I want to double check on this one since its the first time I've hooked one of these up. I'm just starting to get into the installation of the alarms so am I getting in over my head or is this something simple? Any help would be appreciated

Replies:

Posted By: daniel2002p
Date Posted: October 10, 2003 at 8:04 PM

Yes a 451m is needed for these door locks. The alarm only supplies 200mA of currents which is not enough to drive the door motors, or you can put 2 relays on the car. 451M is much easier

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2005 Toyota Corolla S
1.8L VVT-i I-4
Always double check your wires with a DMM!!!
Do Not Use A Test Light!!!
MECP Certified Installer!
Best Buy 665 - IN IT TO WIN IT! TEAM MOBLE!

Posted By: CarAudioPrez
Date Posted: October 11, 2003 at 7:37 AM

yeah thats what I figured. I'll go ahead and just get the 451M. Thanks for the info.