3 negative pulses from single wire?
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=43902
Printed Date: April 28, 2024 at 11:44 PM
Topic: 3 negative pulses from single wire?
Posted By: jc9995
Subject: 3 negative pulses from single wire?
Date Posted: November 27, 2004 at 1:47 PM
I have a 04 dodge ram, which has negative pulse single wire door locks. My remote start needs 3 negative pulses for start. How do I do that? No info I can find tells me how to get a signal FROM a single wire system.
Replies:
Posted By: draasch
Date Posted: November 27, 2004 at 1:54 PM
lets start with the brand of unit you atre installing....... ------------- Good Luck
David
Ace Security
813-376-9778
Tampa
Donate to the 12volt
Posted By: draasch
Date Posted: November 27, 2004 at 1:54 PM
sorry first one had a typo in it
lets start with the brand of unit you are installing....... ------------- Good Luck
David
Ace Security
813-376-9778
Tampa
Donate to the 12volt
Posted By: riceman
Date Posted: November 27, 2004 at 2:33 PM
Try using a validity channel and pressing it three times to send three pulses. Most remote starters add/on repuire two pulse but some can be programmed to one pulse . Hopefully that will give u a few ideas.
Posted By: jc9995
Date Posted: November 27, 2004 at 4:24 PM
Crimestopper Model RS-901 viii. I can program 2 or 3 pulses. Once it is wired I can then hit the lock button 2-3 times to trigger the remote start. The problem is I dont know how to get the negative pulse from the single wire door lock system.
Posted By: johnmax
Date Posted: November 27, 2004 at 4:26 PM
You can set that unit to single pulse input. Don't remember how. It is in the install manual and program menu.
Posted By: draasch
Date Posted: November 27, 2004 at 4:27 PM
dont you have two different buttons on your remote????????
the lock button will send the pulse and the wire with the resistor in will know... ------------- Good Luck
David
Ace Security
813-376-9778
Tampa
Donate to the 12volt
Posted By: jc9995
Date Posted: November 27, 2004 at 4:27 PM
I have no problem with pulsing three time, BUT I dont know how to extract a negative pulse from a single wire door lock system.
Posted By: draasch
Date Posted: November 27, 2004 at 4:31 PM
just wire up the door locks like you should.......then the lock wire will send the pulse........ ------------- Good Luck
David
Ace Security
813-376-9778
Tampa
Donate to the 12volt
Posted By: draasch
Date Posted: November 27, 2004 at 4:32 PM
Power Lock VIOLET/GREEN DRIVER KICK PANEL ** #217
Power Unlock SINGLE WIRE SYSTEM DRIVER KICK PANEL **
** VIOLET/GREEN Wire Must See Ground Through 887 Ohm Resistor For Lock And Ground Through 280 Ohm Resistor For Unlock ------------- Good Luck
David
Ace Security
813-376-9778
Tampa
Donate to the 12volt
Posted By: jc9995
Date Posted: November 27, 2004 at 4:32 PM
my remotes are the factory kelyess entry remotes. Hitting the lock button only produces a slightly higher voltage than hitting the unlock button. Same wire, just depends on how much resistance is between the wire and the ground. The door lock module reads the different resistance and preforms a lock or unlock accordingly.
Posted By: jc9995
Date Posted: November 27, 2004 at 4:38 PM
Maybe I am confusing people. I have a factory keyless entry system. I purchased a remote starter that integrates with a factory keyless entry system. untilizing your factory remotes, and installing the remote starter properly, the starter sees 3 pulses from the door lock wire(pressing the remote lock button 3 times) then starts the remote start sequence. The remote starter did not come with remotes. I need to send it a negative signal 3 times in order for it to work. Since I dont know how to GET a signal from a single wire lock system, thats where my problem is.
Posted By: jc9995
Date Posted: November 27, 2004 at 4:49 PM
I will paypal first person that can help me out. Thanks guys!!!!!
Posted By: draasch
Date Posted: November 27, 2004 at 4:52 PM
once you hook up the door locks, just press it three times.....the voltage that will travel through the wire will see the resistor and will only allow the amount of power to go through in order for it to be a lock pulse.... ------------- Good Luck
David
Ace Security
813-376-9778
Tampa
Donate to the 12volt
Posted By: johnmax
Date Posted: November 27, 2004 at 5:12 PM
Why dont you just use a relay to switch the unlock or lock motor wire from a positive into a negative and use that for your input? Then you just need to hit lock or unlock on your factory remote 2x or 3x.
Posted By: tom small
Date Posted: November 30, 2004 at 9:08 PM
i think he's installing an add on starter to the factory keyless. if this is the case, you are looking for the lock motor wire which directly feeds the actuator. regardless of how the switch works (multiplex, databus, etc...) the actuator requires +12volts to operate. if your add on starter only accepts a negative input, use a relay to invert the polarity of the lock motor wire. press lock 3x on your factory remote - done
Posted By: johnmax
Date Posted: November 30, 2004 at 9:13 PM
Hmmm... sounds like what I said. You're trying to get that Paypal $$$ he's gonna send me 
Posted By: tom small
Date Posted: December 01, 2004 at 5:35 PM
i was so amazed that nobody could figure out what this guy needed that i just had to throw an answer out. p.s. my advice comes free!
Posted By: jc9995
Date Posted: December 01, 2004 at 7:03 PM
Thanks guys for all your help. In the end I did get the info I needed, along with the exact location and color of the wire. AUEX was the first one with the info I needed, and has graciously asked that the money I was going to send to him be donated to this site instead. Thanks again for all your help.... I'm sure it wont be the last :)
Posted By: fortisi876
Date Posted: December 03, 2004 at 8:38 PM
jc9995 wrote:
The problem is I dont know how to get the negative pulse from the single wire door lock system.
Well, thats cuz crimestopper sux when it comes to their tech department....Ive been having some problems with my install as well and they suck! Anyhow I think this diagram I pulled off another site might help but Id dbl check with one of the pro's here first ......gdluck!
Posted By: Haku
Date Posted: December 04, 2004 at 10:45 AM
Pull a pulse off the door lock motor wire, not the control wire. It is a B+ pulse, but if needed you can convert it to B- with a relay (if the RS901 wont accept a B+). The wire you can use is a Lt Green (Lock), or Tan/Lt Green (unlock) both found in the drivers kick panel or door harness.
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Hak
Siemens Autostart
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