01 Tacoma Viper 451M relay wiring
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=82240
Printed Date: May 13, 2024 at 8:03 PM
Topic: 01 Tacoma Viper 451M relay wiring
Posted By: celica2000
Subject: 01 Tacoma Viper 451M relay wiring
Date Posted: August 29, 2006 at 9:06 PM
Im installing a Viper 350Hv alarm in a 2001 Tacoma. Which wires do I connect to the 451M relay for the door locks. I found the RED / yellow - Unlock and the BLACK/ blue - Lock. Which and were do I connect the wires from the 451M relay too.
Replies:
Posted By: Chris Luongo
Date Posted: August 29, 2006 at 9:34 PM
The Tacoma has factory power locks?
If so, the 451M is not needed; it's just straight negative-trigger locks from the brain.
Posted By: bbtaco
Date Posted: August 29, 2006 at 9:41 PM
You do not need to use the 451M on a 2001 Tacoma. You can just connect the green wire from the 350HV to the gray wire in the 22 pin connector at the front of the fuse box. Connect the blue wire from the 350HV to the purple wire in the same connector as the gray wire. Make sure and test all wires with a DMM. Where did you get the wire colors in your post from?
Posted By: celica2000
Date Posted: August 29, 2006 at 10:37 PM
I got my wire colors from the back of the unlock/ lock trigger in the door. Im getting 12 volts from the gray wire when i lock, but nothing from the purple wire. should i test the purple wire differntly with the DMM then the gray.
Posted By: celica2000
Date Posted: August 29, 2006 at 11:23 PM
I checked some other wires from the same 22 pin connector and I got 12 volts from unlock which was a blue/black wire. I connected the green and blue wires and tested the remote. The doors locked but didn't unlock. What did i do wrong. And how can i fix it.
Posted By: shaggy12volt
Date Posted: August 30, 2006 at 12:44 AM
the power lock wire is grey front of fuse box 22 pin plug. this needs a (-)Negetive pulse from your alarm brain. the power unlock is purple front of fuse box 22 pin plug. this nees a (-) Negetive pulse from your alarm brain. These wires will test only by operating the key in the passenger door lock cylinder, not the rocker switch on the door. I have never need to use a 451m on this vehicle. ------------- The Shagmaster
1999 Chevy Suburban 15" lift sittn on 22's sets 7'5"
1992 Chevy Astro Van all Bagged out Dubbed THE SUICIDER
Installing for over 18 years Looking for empolyment NOW send PM for resum
Posted By: Mike M2
Date Posted: August 31, 2006 at 7:03 AM
If you use the wires from either lock switch(which you have) the unlock falls asleep after 10 minutes. Do like others said, front of fuse box and it'll work fine...
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Mike M2
Tech Manager
CS Dealer Services
Posted By: celica2000
Date Posted: September 01, 2006 at 12:22 AM
I think my Tacoma has child saftey locks. And thats why my remote wont unlock the doors. Do i have to wire this to my alarm, or is this not the problem.
Posted By: bbtaco
Date Posted: September 01, 2006 at 12:14 PM
Your Tacoma does not have child safety locks. Your doors should lock and unlock using the gray and purple wires in the 22 pin connector at the front of the fuse box. I have a 2002 Tacoma and that is how mine is connected.
Posted By: Scott35
Date Posted: September 01, 2006 at 3:01 PM
Is yours a 4 door or extended cab? If it is a 4dr you do have child safety locks.
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Tacomacrew
Posted By: celica2000
Date Posted: September 01, 2006 at 10:52 PM
Yes it is a 4 door tacoma, so that means it has child safety locks, so how do I wire this.
Posted By: bbtaco
Date Posted: September 01, 2006 at 11:11 PM
Posted By: Chris Luongo
Date Posted: September 02, 2006 at 10:26 AM
When you use the proper, key-cylinder wires, there is no need to mess around with the so called "child safety" locks.
When the car is locked properly, the unlock-switch wire (from the switch on the door panel) is disabled........making that fancy interface with the diodes and whatnot will fix it.....
But if you simply use the wires that come from the exterior key cylinder, you won't have the problem. Also, using the key cylinder wires usually turns on the domelight with unlock, which is nice.
Posted By: celica2000
Date Posted: September 04, 2006 at 1:49 PM
I used the wiring diagram for the toyota child safety locks and i am still not getting the doors to unlock with the remote. When i tested form -12v for unlock i didn't get anything from the purple wire, but I do get -12v from a blue/ black wire. Which the diagram says that this wire is the child safety lock wire, and it should be grounded when not engadged, but its not grounded. Im i taping into the wrong wire pin, its the one thats right in front next to the fuse box right. Ive tried every possible way to wire the unlock and nothing so far has worked. I havn't tried the taping into the key-cylinder wires because i don't know what color or were i should tap into at. Any infomation that will help me trouble shoot this unlock problem is greatly appreciated.
Posted By: celica2000
Date Posted: September 04, 2006 at 3:00 PM
Ok I tapped into the Blue/Black wire located in the door next to the key-cylinder, which read -12v when i unlocked the door with the key. So I tapped my Blue unlock wire from the alarm into the Blue/Black wire. The remote still didn't unlock the door. So i tested at the original 22-pin plug in front of the fuse box for -12v and tested the remote for unlock, with the unlock wire tapped into the blue/black wire next to the key-cylinder. I got -12v on my DMM but still the doors did not unlock. I dont understand why the blue/black wire is still getting its -12v but still wont unlock the doors. I think I need to tap into more then one wire to get the doors to unlock. But what do i do? Help Me!
Posted By: celica2000
Date Posted: October 22, 2006 at 7:12 PM
I think this tacoma has a lock detection wire, i think this is the problem i've been having. The only thing is i don't know what or how to test for this lock detection wire.
Posted By: Mike M2
Date Posted: October 22, 2006 at 8:12 PM
Man, your not listening. Go to the front of the fuse box. On the right side there's a 22 pin plug and the harness comes out and goes right under a plastic loop. In that plug there's a gray and a purple. Use these wires directly to the alarm brain. Test them from turning the passenger key cylinder. Forget what your reading about the safety locks, the diagrams just flat out wrong.....
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Mike M2
Tech Manager
CS Dealer Services
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