I cant get the door lock actuator to work
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=58760
Printed Date: May 10, 2025 at 10:06 AM
Topic: I cant get the door lock actuator to work
Posted By: zeddiea27
Subject: I cant get the door lock actuator to work
Date Posted: July 03, 2005 at 2:17 AM
Alright I have a 1991 nissan 300zx that did not come with power door locks. So I bought a 2 wire actuator to connect to my new alarm system(which I installed, and Is working flawlessly). I have the actuator and two relays connected exactly how it is listed on this site. I hear a clicking coming from the lock relay when I arm the system, and a clicking sound coming from the unlock relay when I disarm the system. So I feel like everything is connected fine. The only problem is, is that the actuator does not move at all! Now I have connected the 2 wires from the actuator directly to the battery to see if it works, and it does extend and compress when it touches the battery. Can anyone figure this out? Could it be my alarm system? Like maybe its not sending a long enough pulse??? Please help.
Replies:
Posted By: maglin
Date Posted: July 03, 2005 at 2:42 AM
ah...
when you flip the wires, does it expand and contract? if so, find out which wire is pos / neg for each of these. Then check the voltage on the wires coming from your relays, make sure they correspond.
you're right, the pulse on the alarm may not be long enough. the guide to it should have a programming option to increase it.
~~Vinn
Posted By: zeddiea27
Date Posted: July 03, 2005 at 3:07 AM
"when you flip the wires, does it expand and contract? if so, find out which wire is pos / neg for each of these." Im sorry I don't understand; which wires do I flip. And does what expand or contract? And which wire is pos/neg for the relays, or alarm system? I know I sound like a real dumb***, but Im new to alarm systems, this is my first. Also the to get into the programing mode on my alarm my manual says to hit the valet switch, which I don't have, and also an override button which is supposedly on the transmitter, but The manual never illustrates which button is the overide button. By the, this is the alarm system I have:[[LI|https://images.auctionhelper.com/images/judysdeals@hotmail.com/AT777PIC4.jpg]]
Posted By: maglin
Date Posted: July 03, 2005 at 3:37 AM
ok. sorry.
i assumed you have a motor/actuator with two wires coming outta it. when you make one wire 'hot' and the other ground, the motor goes one way. reverse the wires and the motor goes the other.
ah... lemme take a minute and look at your link
most alarm/remote starter kits use like the same manual for all the models of the same class. mine was a 'tap the brake x times, wait x seconds, tap again' programming. irritating as hell. lol.
Posted By: maglin
Date Posted: July 03, 2005 at 3:40 AM
hmm... as for your switches, the valet s... agh. lol. its 4:35 am in MI, where i'm from. i'll take a look at this tomorrow. sorry, i'm kinda tired so i'm phrasing shhh all wierd. honestly, i've never seen that kit before, but the basics to door motors / relays is all the same.
~~Maglin
Posted By: jhgraham
Date Posted: July 03, 2005 at 6:47 AM
Could it be the relays are wired incorrectly? My alarm puts out 12V @ 300mA. A car battery puts out 12V @ 300Amps. Amps = Power
Posted By: maglin
Date Posted: July 03, 2005 at 10:00 AM
right right. i was asking if you tested the relays. when you hti the unlock button, one wire from the relays should go hot while the other goes cold, and vice versa for the other way around. this creates the polarity, and reverse polaritiy needed for most door motors.
Posted By: zeddiea27
Date Posted: July 03, 2005 at 2:46 PM
"i assumed you have a motor/actuator with two wires coming outta it. when you make one wire 'hot' and the other ground, the motor goes one way. reverse the wires and the motor goes the other" Well when the blue wire on the actuator is on pos, and I touch the green wire to negative, the acuator extends out quickly then compresses. So Im not sure it it is supposed to extend and stay extended, then compress and stay compressed. "Could it be the relays are wired incorrectly? My alarm puts out 12V @ 300mA. A car battery puts out 12V @ 300Amps. Amps = Power" My alarm sends a 150ma neg pulse. "i was asking if you tested the relays" How can I test the relays? Thanks for the info guys.
Posted By: maglin
Date Posted: July 03, 2005 at 6:10 PM
... should extend, and stay there until you reverse the flow through the motor when it would retract itself... ah... hehehehe. i'm not sure about your actuators, and don't wanna talk now. My door motors for my locks came outta a old caddy, and i just fabbed something up to make them work. current flows through them one way, the motor extends, the other, it contracts. yours .... door locks right? not hidden door latch? i could see why an actuator would 'return' if it was a door handle or something. agh. i'm not sure if i'm confused or not. lol
~~Vinn
Posted By: KarTuneMan
Date Posted: July 04, 2005 at 11:32 AM
 DO THIS!-------------
Posted By: zeddiea27
Date Posted: July 04, 2005 at 4:40 PM
Yes, as my original post indicates, I have it wired exactly like that. It is not working for some reason.
Posted By: joe_1
Date Posted: July 04, 2005 at 5:02 PM
this sounds strange if it is connected the way the diagram is it should work is the output timed right to operate the relays long enough to operate the motor? when i was reading through you said that you heard both relays clicking when you arm and disarm the system quickly check the motor and see if it is solid as if it was stuck trying to go both ways if this is the case then both relays are being operated at the same time.
Posted By: jhgraham
Date Posted: July 04, 2005 at 5:14 PM
I could be wrong as usual but it seems like you are trying to drive the motors using the Alarm triggering wire. The Alarm trigger wire will drive a relay but not the motors.
Since your motors work using the battery it sounds like you do not have enough power. Notice the fore drawing has a + 12V, this is a power connection not a mAmp. Use the alarm to trigger the relays and use another wire with +12V from another wire. (Radio is a good place) to drive the motors. Check the relay section for instructions.
Posted By: zeddiea27
Date Posted: July 04, 2005 at 7:06 PM
"this sounds strange if it is connected the way the diagram is it should work is the output timed right to operate the relays long enough to operate the motor?" Thats exactly what I thinking. But I donot know how to change the length of time the alarm sytem sends the pulse. "check the motor and see if it is solid as if it was stuck trying to go both ways if this is the case then both relays are being operated at the same time." I said one relay clicks when I hit arm, and the other clicks when I hit disarm, indicating they are working properly. "Use the alarm to trigger the relays and use another wire with +12V from another wire. (Radio is a good place) to drive the motors. Check the relay section for instructions." I'm not sure I understand. Your saying to disconect the +12v from both relays, and hooking it straight to the door actuator? Can you tell me exactly how to hook it up(IE, all five relay pins for lock and unlock, and power/ground). Thanks
Posted By: OwenZ
Date Posted: August 06, 2005 at 8:37 PM
My car is a 91TT and when installing the door actuator, I discovered that my actuators worked at the battery posts but not when connected to the relays.
In the end, the alarm unit +12V input (not the main red wire or ACC) was not getting enough juice from where it was tapped into a wire. Hence, the trigger signal from the alarm was only putting out 0.5V or less.
Owen
Posted By: riceman
Date Posted: August 07, 2005 at 11:57 AM
try hooking up your makita drill battery to the two wires from the motor if you put it one way the motor will either pull or push and vice versa. this is to check if the motor is not binding. sometimes it works fine with the door panel off then when you put it back something is hitting it. also sometimes when you mount it you screw too tight and if the motor is bending in any way it wont move. with these few tips you should be fine. good luck
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