keyless locks
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=15248
Printed Date: September 13, 2025 at 10:04 PM
Topic: keyless locks
Posted By: scelsi14
Subject: keyless locks
Date Posted: June 21, 2003 at 12:04 PM
I have my keyless locks installed and everything, but it will only lock with the remote. I found that if i put the "lock" wire coming out of the actuator on a ground, it will unlock. By doing this I have to remove the wire from the harness coming out of the sensor module. Does anyone know how I would wire relays to accomplish this without having to manualy ground the wire to unlock this?
Replies:
Posted By: chuck_tempe
Date Posted: June 21, 2003 at 4:44 PM
i don't know what kind of vehicle or alarm you have, but what you can is install a relay for the unlock. the pulse for the unlock would trip the relay to provide a ground to your "lock" wire. i need some more info to provide you with more details.
Posted By: scelsi14
Date Posted: June 22, 2003 at 2:44 PM
I figured I needed a relay but I can't figure out how to wire it to do that. I tried to do it myself, but it didn't work right. How would I run the wires to accomplish what you're saying?
Posted By: Velocity Motors
Date Posted: June 22, 2003 at 5:30 PM
Use this diagram for aftermarket actuators------------- Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: scelsi14
Date Posted: June 22, 2003 at 7:43 PM
I tried that relay setup and it won't lock or unlock.
Posted By: Velocity Motors
Date Posted: June 22, 2003 at 8:00 PM
Does each lock and unlock wire coming from the keyless module output a (-) signal when you lock and unlock with the remote control ?
-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: chuck_tempe
Date Posted: June 22, 2003 at 11:39 PM
scelsi14, can you provide us with more details about the vehicle or alarm make/model that you are using? we need to know if you are using aftermarket actuators or if your vehicle is equipped with factory doorlocks.
Posted By: scelsi14
Date Posted: June 23, 2003 at 8:56 AM
Oh, sorry, I forgot to mention that. I have an aftermarket keyless lock set. My car is a 91 Pontiac Sunbird. Here's a link to link where I got the lock set. Thanks for any help.
Posted By: scelsi14
Date Posted: June 23, 2003 at 9:01 AM
Velocity Motors, what equipment would I need to see if it is a (-) signal? I have a multimeter, but it appears that will not show me such a signal.
Posted By: Velocity Motors
Date Posted: June 23, 2003 at 9:20 AM
You need to set your DMM to DC and place the RED lead to a constant 12 volt source and the BLACK lead to the target wire. Now press the lock or unlock button on the remote control and the corresponding wire will make the DMM jump up to 12 volts momentarily and back down to 0. Both wires should do this when you press the lock/unlock button.
-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: chuck_tempe
Date Posted: June 23, 2003 at 10:30 PM
judging from the link you've posted, if everything is hooked up to the module, you locks and remotes should work properly. double check you wiring. without the actual diagram, i'm just guessing on what's wrong.
Posted By: scelsi14
Date Posted: June 25, 2003 at 7:57 AM
Ok, when I did what Velocity Motors said, I had a 12V until i pushed the button, then it went back to 0. What does this tell me? Except when I push the lock button with the lead on the black wire it only goes down to 10 volts, but lock is the one that is working for me. Do I need the unlock wire to stay that hot?
Posted By: scelsi14
Date Posted: June 25, 2003 at 7:59 AM
That was the unlock wire and unlock button that went back to 0. Sorry about that
Posted By: scelsi14
Date Posted: June 25, 2003 at 8:08 AM
What diagram would be beneficial chuck? Like what the wires on the module are connected to?
Posted By: Velocity Motors
Date Posted: June 25, 2003 at 9:14 AM
Seeing that your KE unit sends out a (-) pulse for trigger, then it's working properly for the unlock . The LOCK on the other hand has to also go to 0 volts in order for it to work properly. Ther eis the problem. The output on the LOCK wire is not grounding like it's supposed to. Chances are the KE unit's lock output is defective.
-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: scelsi14
Date Posted: June 25, 2003 at 10:01 AM
Is there any way that I can fix that? Or possibly do something to bypass the faulty ground?
Posted By: scelsi14
Date Posted: June 29, 2003 at 8:08 AM
What would I be looking for on the module itself?Can i use relays to get around the bad ground?
Posted By: Velocity Motors
Date Posted: June 29, 2003 at 8:21 AM
If the lock output does not drop down to 0 volts ( only 10 volts ), there really is no way around it. Just take the KE unit back for warranty to the place you got it from ( if possible ).
-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
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