street rod power lock needed
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=107548
Printed Date: July 17, 2025 at 10:21 AM
Topic: street rod power lock needed
Posted By: 1936fordturbo
Subject: street rod power lock needed
Date Posted: September 19, 2008 at 8:03 AM
Hello, any help will be greatly appreciated. Installing a Viper 5002 in my 36 Ford Street Rod. I have 2 aftermarket two wire lock actuators. I originally wired one actuator by using diagram D shown for aftermarket actuators (violet to 12+, white & brown to ground, green & blue wire from alarm to actuators) and lock seam to work fine. I than proceeded to add the other door and than some happened where it worked a few times and then nothing. Did I fry something or does this have to be hooked up an other way?
Thanks, Dave
Replies:
Posted By: i am an idiot
Date Posted: September 19, 2008 at 11:20 AM
| Actuators / Reverse Polarity | This is practically identical to the 5 wire alternating 12V(+) system above. The only difference is there's no switch! Both motor legs rest at ground at the relays. To lock or unlock the vehicle, polarity is changed on one motor leg.
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Posted By: 1936fordturbo
Date Posted: September 19, 2008 at 2:56 PM
Thank You, that looks easy enough. How do I add a interior switch to this?
Dave
Posted By: i am an idiot
Date Posted: September 19, 2008 at 6:28 PM
See the 2 connections that say alarm unlock output and alarm lock output? Simply ground the appropriate wire via a momentary On-Off-On rocker switch. Simply ground the middle terminal of the switch and connect one switch terminal to the alarm lock output wire, this will lock the doors. The other terminal of the switch connects to the alarm unlock output wire this will unlock the doors.
Posted By: 1936fordturbo
Date Posted: September 21, 2008 at 10:50 AM
Thanks again, I will give it a try. By the way, Your no Idiot.  Thank You, Dave
Posted By: 1936fordturbo
Date Posted: October 19, 2008 at 9:06 AM
Hello, I need some more help. The above relay diagram works great, however the relays being energized kills the battery when car sits for a couple of weeks with out being started. Is there a way to fix this problem?
Thanks again, Dave
Posted By: i am an idiot
Date Posted: October 19, 2008 at 10:27 AM
The relays are only energized when you locking or unlocking the doors. when energized they pull 160 Milliamps of current each, they only energize one relay at a time. If one of them was staying energized, this would run your battery down in a couple of days, unless of course your streetrod has a bank of about 10 batteries. I am sure that it is the alarm system that is running the battery down. Even disarmed they do pull a little current, most vehicles are driven daily or at the minimum once a week or so. The reciever inside the brain has to run so it can look for signals from the remote.
Posted By: KarTuneMan
Date Posted: October 21, 2008 at 1:32 AM
1936fordturbo wrote:
Hello, I need some more help. The above relay diagram works great, however the relays being energized kills the battery when car sits for a couple of weeks with out being started. Is there a way to fix this problem?
Thanks again, Dave
This should not happen. If the relay is staying activated (latched) there is an error in the wireing. Understanding "how" a relay works will give you all of the answers you need. -------------
Posted By: i am an idiot
Date Posted: October 21, 2008 at 5:01 AM
He was thinking that the relays were running his battery down. It takes 3 weeks or so to run it down. I was just telling him that if the relays WERE pulling current, the 160MA of the relay would run it down in a matter of days. That is not even taking into consideration the amount of current the actuators would be pulling.
Posted By: 1936fordturbo
Date Posted: October 22, 2008 at 1:31 PM
Yes, when I put 12 volts to the relays they click and stay energized. I believe this is what is draining the battery. How do i fix this problem?
Dave
Posted By: i am an idiot
Date Posted: October 22, 2008 at 1:47 PM
When you put 12 volts to which terminal of the relay? What kind of switch did you use? The only thing I can see that will cause the relays to energize when 12 volts is applied is the following. If you used 2 seperate push button switches, and they were of the normally closed type of switch. If you did use pushbutton switches, you need to use normally open switches.
Posted By: 1936fordturbo
Date Posted: October 22, 2008 at 8:29 PM
Yes, when I put 12 volts to relay with no switches added, they click.
Posted By: i am an idiot
Date Posted: October 22, 2008 at 8:39 PM
If they are clicking when voltage is applied, and you have no switches on the end of the wire, the wire HAS to be grounded somewhere. The wires that go to the switches, remove them from the relay and see if it still clicks when powered up. If it does not click with the wires disconnected, there is a short to ground on the wires.
Posted By: 1936fordturbo
Date Posted: October 22, 2008 at 8:46 PM
Could this be caused if the alarm wire running to relay is a neg signal?
Posted By: i am an idiot
Date Posted: October 22, 2008 at 8:53 PM
The alarm does have a negative door lock output. But it should only have ground on it when attempting to lock or unlock the doors. If it always has ground on the wires, there is a problem.
Posted By: 1936fordturbo
Date Posted: October 22, 2008 at 9:10 PM
Well Tomarrow I will double check all wires and connections and switch out the relays and post my findings.
Posted By: 1936fordturbo
Date Posted: November 18, 2008 at 3:27 PM
All looks good and wired correctly. Is there a way to have alarm wire trigger an other relay to trigger the relays I already have wired?
Posted By: CutDog504
Date Posted: January 04, 2009 at 2:13 PM
I've had this problem before. The 5 wire actuators are crap. Cut the brown and whit and whatever off (or just disconnect them) and use only the blue and green wires. The other 3 wires are basically a "switch" built into the actuator. But this will not give a pulse that a relay needs, they give out a constant ground when the actuators are moved. Then if both actuators arent aligned exactly in sync with each other, that wil cause problems too. Just use the blue and green wires like I did, you be happier and have less headaches. Let us know how that works out for you.
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