Adding a power door lock switch

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=79971
Printed Date: April 26, 2024 at 9:18 PM

Topic: Adding a power door lock switch

Posted By: crxratedr
Subject: Adding a power door lock switch
Date Posted: July 05, 2006 at 11:29 PM

96 Honda Civic DX
Viper 600 ESP alarm
*professionally installed

I had an alarm installed along with power door locks. One would think that a door lock conversion would come with a switch but I guess not. I want to be able to lock and unlock the doors from the inside, without using the remote or activating the alarm. I dont want to lean over to unlock or lock the doors.

Can I just run a momentary switch to one of the 2 wires coming from the power door lock actuator? Or is it more complicated than that? My main concern is the alarm. I dont want to mess that up. It is programmed for ignition controlled locks (locking the doors when the ignition is on, and unlocking when the ignition is off).

Any help is appreciated. Thanks in advance.

Replies:

Posted By: captainzab
Date Posted: July 06, 2006 at 12:12 AM

Well, almost all the time, alarm installers just add actuators. Because i know i do. Because i dont know where to get switches and i dont even got a dremel tool. But aside from that, the installer used the 451m to wire up your actuators.
I dont know what you mean by running 2 wire to actuators.
But if you do add a switch, i assume you would send a pulse to the 451m. it would be a thin wire on the 451m (blue for unlock and green for lock)
Do you have your switch? because this way will only lock and unlock ALL your dooors.
A door lock switch has a ground to it, and when you press it forward, you send that ground to the lock wire, and pressing it back will send ground to the unlock. Thus locking and unlocking all the doors, respectively.
Get your switch and wire it to the 451m. (if you dont find a 451m, it will be 2 relays wired together) look under the dash, shouldnt be to hard to find the 451m
Hope that helps

PS, if you dont have switches, go to a junkyard and buy some and cut them out or buy the actual door panel and use the wires attached to the switches

Posted By: crxratedr
Date Posted: July 06, 2006 at 4:53 PM

I don't know what a 451m is. And I didn't install the alarm. I read the manual on this site but couldn't really figure it out. I don't want to mess up the alarm. I beleive their are relays and what not, but Im not too sure. I am not a professional electrician or anything like that. And the 2 wires coming off of the actuator are green and blue. I know that makes it lock and unlock. But I want to be able to add a switch to lock and unlock the doors without messing up the alarm and its functions.

Posted By: captainzab
Date Posted: July 06, 2006 at 6:01 PM

follow the 2 wires from the actuators to where it meets with the alarm. 451m is the door lock module controlling the actuators. (Possibly the installer could have used 2 relays)
https://www.the12volt.com/doorlocks/page3.asp#arp
if so, the relay set up looks like this ^^^^^
i dont think that adding the switched will hurt the alarm.
if possible, i say get your switches, mount them, run the wires into the dash of the car, then take it somewhere and ask them to hook it up for you. print this conversation out so that they know EXACTLY how to wire it up.

Posted By: KPierson
Date Posted: July 06, 2006 at 6:10 PM

Find the alarm braind and locate a small, three pin harness plugged in to it. The wires will be blue, red, green and the header should be white. If you apply a momentary (-) to the green wire the doors will unlock, if you apply a (-) pulse to the blue wire they will lock.

I wouldn't recomend using an OEM door lock switch, as most OEM switches are 5 wire setups (both acutator wires rest at ground and the OEM swtich breaks that ground on ONE wire and applies 12vdc to it).

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Kevin Pierson

Posted By: KPierson
Date Posted: July 06, 2006 at 6:11 PM

in above post "alarm braind" = alarm brain!

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Kevin Pierson

Posted By: crxratedr
Date Posted: July 06, 2006 at 8:40 PM

In the alarm guide, there are 2 relays, one for lock and the other for unlock. If the car has OEM power door locks with a switch(with its own relay) its wired one way. And if the installer add actuators for power door locks, its wired a different way. I have a OEM door lock switch that mounts to the drivers door. It has 3 prong things. Non-illuminated. The middle one is a ground. And the other 2 are lock and unlock. I am told. Maybe you guys can check out the wiring diagram for the Viper 600 ESP alarm on this site.

Posted By: rallysport
Date Posted: July 06, 2006 at 9:58 PM

crxratedr wrote:

In the alarm guide, there are 2 relays, one for lock and the other for unlock. If the car has OEM power door locks with a switch(with its own relay) its wired one way. And if the installer add actuators for power door locks, its wired a different way. I have a OEM door lock switch that mounts to the drivers door. It has 3 prong things. Non-illuminated. The middle one is a ground. And the other 2 are lock and unlock. I am told. Maybe you guys can check out the wiring diagram for the Viper 600 ESP alarm on this site.

should be easy then, ground the middle wire. then run the other 2 to the thin guage blue and green wires coming from the alarm

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Posted By: captainzab
Date Posted: July 06, 2006 at 10:15 PM

https://www.the12volt.com/uploads/files/Viper%20600%20ESP.pdf
My bad, i never looked at the 600 brain,
the info about the relay and 451m is wrong, and kpierson didnt even catch it posted_image

I am so sorry dude, lesson to learn, open the file on all alarm module to make sure you know what you are talking about
Well, GREEN/ Black is the lock and Blue/Black is unlock.
Your right about the 3 prong and how the middle one is ground. Great, now the other 2 prong are used to pulse a relay to control the actuators.
The problem is, you cant use the alarm relay set up because its apart of the brain. (H2 harness)
The only way now is to wire up 2 relays, exactly like this
well, after you wire this relay up, you have your 2 other prong from the switch. pulse the 86 green wire and 85 dark blue wire (according to the diagram from the link)
like, when you press the button forward, it locks your actuators while you press it back it unlocks the actuators.
You can wire the "to actuators" wire (according to diagram)to the actuator wire that the alarm is connected to.
Hope i made that clear enough for you to understand

Posted By: crxratedr
Date Posted: July 07, 2006 at 2:17 AM

Umm, which relay setup are you talkin about? The Actuators/Reverse Polarity or the 5 wire alternating one?

Posted By: crxratedr
Date Posted: July 07, 2006 at 2:52 AM

I was looking at that 5 wire alternating relay diagram but wasnt too sure if the alarm would function like it should or if the switch will hurt the alarm.

Posted By: KPierson
Date Posted: July 07, 2006 at 6:06 AM

captainzab wrote:

https://www.the12volt.com/uploads/files/Viper%20600%20ESP.pdf
My bad, i never looked at the 600 brain,
the info about the relay and 451m is wrong, and kpierson didnt even catch it
I am so sorry dude, lesson to learn, open the file on all alarm module to make sure you know what you are talking about
Well, GREEN/ Black is the lock and Blue/Black is unlock.
Your right about the 3 prong and how the middle one is ground. Great, now the other 2 prong are used to pulse a relay to control the actuators.
The problem is, you cant use the alarm relay set up because its apart of the brain. (H2 harness)
The only way now is to wire up 2 relays, exactly like this
well, after you wire this relay up, you have your 2 other prong from the switch. pulse the 86 green wire and 85 dark blue wire (according to the diagram from the link)
like, when you press the button forward, it locks your actuators while you press it back it unlocks the actuators.
You can wire the "to actuators" wire (according to diagram)to the actuator wire that the alarm is connected to.
Hope i made that clear enough for you to understand

Ha, not many DEI alarms have built in relays for door locks! Either way though, relays STILL exist, they will just be harder to get to (or maybe easier). A PCB mounted relay shouldn't be much different then an external relay. With a volt meter and a little time you should be able to locate the door lock relays on the alarm brain and find the coil pins. At that point, all you have to do is figure out if they are switching the + or - (my guess is -), then hardwire the new switches in. Most DEI alarms use a darlington trasnsitor configuration to drive all the outputs, including the door locks, so isolation shouldn't be an issue.

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Kevin Pierson

Posted By: crxratedr
Date Posted: July 07, 2006 at 11:45 AM

Umm.. I don't know. I think you just confused me. Maybe if you can examine the Viper 600 ESP alarm installation guide and check out the 3 wire switch type and added actuator type and come up with a diagram. I believe the brain has a harness, for lock and unlock wires, which connects to 2 relays and then runs to the actuator. I don't want to mess up the alarm but want to add that switch.

Posted By: crxratedr
Date Posted: July 10, 2006 at 5:32 PM

So what am I suppose to do? All I want is a switch that locks and unlocks the doors while still working with the already installed Viper alarm and aftermarker door lock actuators. Should I hard wire the OEM door lock switch or use relays? And how should I do either of them? Which ever way is the correct way. I don't want to mess up the alarm. I can fix cars, install stereos, wire stuff and what not, but I don't really know the ins and outs of electronics and its insides or anything like that. So help me out and tell me what to do. Thanks for any and all the help.