To Relay Or not to Relay..
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Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=7980
Printed Date: June 04, 2024 at 11:38 PM
Topic: To Relay Or not to Relay..
Posted By: moog
Subject: To Relay Or not to Relay..
Date Posted: January 11, 2003 at 12:57 AM
I just need to get a negative pulse from the drivers door lock of a 2002 dodge ram quad, for a remote start activation............... Do I need to use relays for this, or resistors??? No alarms, just factory keyless entry.. thanx ------------- moog
Replies:
Posted By: auex
Date Posted: January 11, 2003 at 4:36 PM
You would need a relay. The only wire you can tag is going to be the drivers door unlock motor wire. You should also take into account that when you hit unlock on the door the truck will start. You could come up with a way to bypass the switch. ------------- 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: moog
Date Posted: January 11, 2003 at 5:53 PM
Thanx for the speedy reply auex,That's what I was wondering............ Is there another way to do this ??? ------------- moog
Posted By: auex
Date Posted: January 11, 2003 at 7:09 PM
You could use one relay to provide the ground when the drivers door unlocks and use another relay to cut the ground going to thirty of the other relay when the passenger unlock goes pos. This is assuming the vehicle has progressive locks( all 02 and 03 dodge rams I have worked on have).
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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: moog
Date Posted: January 11, 2003 at 7:58 PM
This is getting much too complicated............ How bout we try this from another route......... When I lock the truck using the oem remote, I get two horn chirps confirming that it's locked............. Is there any way to get the negative pulses i need for the remote start from these horn chirps???? And if so, where would I begin to look ??? ------------- moog
Posted By: BNLUIS
Date Posted: January 11, 2003 at 8:10 PM
just use a relay connect to door lock motor wire Tan\pink or Tan\black in drivers kick panel wire relay as follow PIN 86 connects to door lock motor wire pinn 87 and 85 to ground - pin 30 will be you negative trigger don't use pin 87a it's very easy I do this all the time , you car will remain lock, and your remote will operate when the car is running. Good Luck!
Posted By: BNLUIS
Date Posted: January 11, 2003 at 8:14 PM
Also I forgot. Programm you remote starter for 2 or 3 pulses or your remote starter will activate everytime you lock your car. Good Luck!
Posted By: moog
Date Posted: January 11, 2003 at 9:56 PM
Hey, Great solution................ thanx for the info....... I've just got one question though, If I wire this exactly like you said, what will happen if I use the power door lock switch(on the door armrest) to send two lock commands?? Will this activate a remote start ?? ------------- moog
Posted By: iskidoo
Date Posted: January 12, 2003 at 7:57 AM
Yes it will start the vehicle and run for the preprogrammed runtime. I used that setup on a 2002 GMC Sierra and the customer loved being able to start the vehicle from the interior...added bonus. I used 3 lock pulses though...insures less inadvertant starts. If you accidentally start the vehicle, pressing the lock button one more time should shut it back down or depress the brake.
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Steve G
Posted By: BNLUIS
Date Posted: January 12, 2003 at 8:11 PM
yes it will activate the RS unit, alot of my costumers like that feature. it will activate the RS since is using your door lock motor wire. GOOD LUCK!..
Posted By: moog
Date Posted: January 12, 2003 at 9:38 PM
Is there another way of doing it, so that it will not activate with a pulse's from the power door lock switch???
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moog
Posted By: iskidoo
Date Posted: January 13, 2003 at 7:26 AM
Just return that model and buy a unit that offers Remote Start with Keyless Entry. Your range is pretty limited when using your factory remote anyway. Otherwise the vehicle will start when pulsed from the interior. That's just the way those add-on units are designed.
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Steve G
Posted By: BNLUIS
Date Posted: January 13, 2003 at 8:36 AM
yes , install a n alarm remote start unit.
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