Remote Start Activation Input
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=102040
Printed Date: April 28, 2024 at 5:08 AM
Topic: Remote Start Activation Input
Posted By: Reeceddogg
Subject: Remote Start Activation Input
Date Posted: February 09, 2008 at 6:54 PM
When doing an add-on R/S what's the best wire to use for the activation input. Door lock motor?
Replies:
Posted By: chadwa2003
Date Posted: February 09, 2008 at 10:07 PM
Usually that's your best bet what kind of vehicle year make and model
Posted By: Reeceddogg
Date Posted: February 10, 2008 at 3:15 AM
I'm putting this one in a 05 taurus. I did use that wire. I wanted to see if there was anythings else. I've tried pulsing off the unlock wire to a relay but the voltage drop still wasn't strong enough. Just looking for ideas for the future.
Posted By: chriswallace187
Date Posted: February 10, 2008 at 3:30 AM
Lock motor lead's usually your only option. Most of the time the lock switch wire (the pink / YELLOW (-) on that car) doesn't get activated with the factory keyless remote. ------------- C Renner's Auto Electronix
My service is cheap, quick, and good - pick any two
Posted By: tedmond
Date Posted: February 10, 2008 at 7:23 AM
yea chris is right, most units require a strong ground pulse, and most of the time the best way is door lock motor wires. using a relay on the motor for the remote start unit ensures 100% that it will always start remote start sequence.
Posted By: Reeceddogg
Date Posted: February 10, 2008 at 11:18 AM
That's what i figure.
Posted By: chriswallace187
Date Posted: February 10, 2008 at 1:07 PM
It's really not so much the need for a strong ground pulse that makes the lock motor lead a necessity for an activation input.
Theoretically you could connect it to the lock switch wire, defogger circuit, headlights or any other switched circuit on the vehicle, and your remote start would work fine - when you do valet take-over to run into the store, because you can just activate that switch from in the car.
This wouldn't be a big deal at all if you were putting in an r/s with its own remote and wanted to give the customer an extra option for takeover rather than fumbling with the buttons on the remote while it's still in the ignition. If you are adding the system on to be controlled by a factory keyless entry remote, the lock motor lead (or if you've got really good wiring info, the lock output from the keyless receiver to the lock relay) is the only wire you can count on to work. The lock switch wires(with some exceptions - '95-up keyless Sunfires/Cavaliers among them) don't get activated by the keyless entry. ------------- C Renner's Auto Electronix
My service is cheap, quick, and good - pick any two
Posted By: Reeceddogg
Date Posted: February 10, 2008 at 1:21 PM
That the reason i went to the lock motor. lock switch wires didn't activate with the factory keyless and this is an add-on with no remotes.
Posted By: wsc75
Date Posted: February 15, 2008 at 8:41 AM
what if you wanted to activate the r/s using the unlock button?
Posted By: chriswallace187
Date Posted: February 15, 2008 at 3:24 PM
It's possible to use the unlock button, but less feasible since factory keyless systems generally do priority unlocking (driver's door only on the first press). If you used the driver's unlock motor lead with one pulse for activation, it wouldn't be an issue. If you wanted to make it work with multiple button pushes so the car wouldn't start every time, that'd be a little more tricky - some keyless entry systems may not send an output to any doors after they are already unlocked, some will alternately unlock the driver's door and passenger doors indefinitely, and some will only unlock the passenger doors from the 2nd button push on. In addition, if your car doesn't allow the keyless to work while running, you've got the additional problem of an unlocked car the whole time it's remote started. Not good in my book. ------------- C Renner's Auto Electronix
My service is cheap, quick, and good - pick any two
Posted By: i am an idiot
Date Posted: February 15, 2008 at 3:30 PM
If we are starting the car, why would you want the doors to be unlocked with the engine running? I do realize that depressing the brake pedal should kill the car. Just doesn't seem logical to me.
Posted By: wsc75
Date Posted: February 15, 2008 at 3:34 PM
because my customer has OCD and hits the lock button all the time...so if i hook it up to the unlock circuit she wont constantly be starting her car. she can hit the lock button after she r/s it
Posted By: chriswallace187
Date Posted: February 16, 2008 at 12:55 AM
wsc75] wrote:
ecause my customer has OCD and hits the lock button all the time...so if i hook it up to the unlock circuit she wont constantly be starting her car. she can hit the lock button after she r/s it
Is your activation input programmable for input pulses? Just curious how many you have it set to - also if your cust. has genuine OCD I'm guessing you could tell a really interesting story about her! Let's hear it - and I'll come up with a story about one of mine  ------------- C Renner's Auto Electronix
My service is cheap, quick, and good - pick any two
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