One wire lock/unlock question
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=33441
Printed Date: May 19, 2024 at 12:41 AM
Topic: One wire lock/unlock question
Posted By: mito57
Subject: One wire lock/unlock question
Date Posted: June 06, 2004 at 11:52 PM
I want to use the lock signal to roll up mi windows (using a roll up module, of course). The lock is accomplished with a positive pulse through a 620 ohm resistor (Dodge Stratus). If I put a diode in this circuit to isolate the signals, will it still unlock the doors, or need I to use a relay ? I know the relay will do it, but putting a diode will save me some wiring.
Replies:
Posted By: auex
Date Posted: June 06, 2004 at 11:57 PM
Neither the relay or the diode will work, you can't isolate the signals on a one wire lock system. What you can do is tag the driver's door lock motor wire.
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Certified Security Specialist
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Posted By: mito57
Date Posted: June 07, 2004 at 7:55 AM
I think I wasn't clear enough. I already have a diferent contact for the lock and unlock from my alarm system. What I want is to use the lock contact for the roll up module triggering, but I only want it to be triggered with the alarm remote and not when I lock/unlock with the OEM remote or the door switch. So I dont want the signal from the one wire to feedback through the alarm wiring activating the windows roll up module. Will this work? Diagram 
Posted By: auex
Date Posted: June 07, 2004 at 4:44 PM
Or, since you have an aftermarket alarm, hook it up the correct way (to the ground when armed). Why are you using both the alarm remote and oem remote? Doing this has to cause problems. Simply put, yes if you diode isolate the -lock trigger off of the alarm to the car then that can be used to trigger the window to roll up, all be it only an inch or so at a time but hey if this is how you want it...
-------------
Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.
I've been sick lately, sorry I won't be on much.
Posted By: mito57
Date Posted: June 07, 2004 at 4:55 PM
Why are you saying an inch at a time? I've already installed the module and when I trigger it (manually, just grounding the input wire) it only rolls up each window about an inch. Maybe you can give me a clue about why this happens. Thanks
Posted By: auex
Date Posted: June 07, 2004 at 5:23 PM
Have you tried holding the wire to ground, not just touching it?
-------------
Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.
I've been sick lately, sorry I won't be on much.
Posted By: mito57
Date Posted: June 07, 2004 at 9:50 PM
Yes, it makes the same thing. I think that just the module is sensing too much current and shutting itself down. But it doesn't have any adjustment. I'm going to buy a new module with sensitivity adjustment. By the way, I'm just a guy who likes to work in his car. I'm not a specialist..
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