ReArm/ Disarm, lock/ unlock?
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=67266
Printed Date: May 19, 2024 at 11:10 AM
Topic: ReArm/ Disarm, lock/ unlock?
Posted By: equate
Subject: ReArm/ Disarm, lock/ unlock?
Date Posted: November 29, 2005 at 3:58 PM
For some vehicles with OEM security system, I have the following questions: 1. When there is pulse at rearm wire, does it lock the car doors also? 2. When there is pulse at disarm wire, does it unlock the car doors also? Or rearm and disarm is just acitve and deactive the OEM alarm only? Nothing is going to the door lock systems?
Replies:
Posted By: JWorm
Date Posted: November 29, 2005 at 4:21 PM
depends on the car and how it is hooked up...pick a vehicle, and I'll describe how it would work.
Posted By: Mike M2
Date Posted: November 29, 2005 at 4:31 PM
Every car is different. A Nissan will disarm on the first pulse, unlock on the second. Chrysler has two sets, one for just locks, one for arm/disarm, which will unlock on the second pulse. Toyota disarms and unlocks just the drivers door on the first pulse, second pulse unlocks all.
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Mike M2
Tech Manager
CS Dealer Services
Posted By: equate
Date Posted: November 30, 2005 at 8:57 PM
Mike M2 wrote:
Every car is different. A Nissan will disarm on the first pulse, unlock on the second. Chrysler has two sets, one for just locks, one for arm/disarm, which will unlock on the second pulse. Toyota disarms and unlocks just the drivers door on the first pulse, second pulse unlocks all.
Nissan: lets use ALTMA 2002 as example: Unlock: brown, Disarm: WHITE/ blue First pulse on WHITE/ blue wire will disarm the OEM alarm but doesnt unlock the door, right? Second pulse on WHITE/ blue wire will unlock the door, right? Chrysler: let's use Intrepid 2002 as example: Unlock: WHITE/ green Disarm: GREEN/ orange First pulse on GREEN/ orange wire will disarm the OEM alarm but doesnt unlock the door, right? Second pulse on GREEN/ orange wire doesn't unlock the door either, right? TOYOTA: Lets use Corolla 2003 as example: Unlock: blue Disarm: blue/black First pulse on blue/black wire will disarm the OEM alarm , and unlock the drive door, right? Second pulse on blue/black wire will unlock the other doors, right?
Posted By: Velocity Motors
Date Posted: November 30, 2005 at 9:55 PM
equate wrote:
Nissan: lets use ALTMA 2002 as example:
Unlock: brown,
Disarm: WHITE/ blue
First pulse on WHITE/ blue wire will disarm the OEM alarm but doesnt unlock the door, right?
Second pulse on WHITE/ blue wire will unlock the door, right?
The Nissan Altima with OEM alarm you need to double pulse the WHITE/ BLUE wire in the drivers door at the switch. A single pulse will disarm and a 2nd pulse will unlock all doors. The BROWN wire is the unlock wire found on Altima's without OEM alarm and requires only a single pulse to unlock the doors.
equate wrote:
Chrysler: let's use Intrepid 2002 as example:
Unlock: WHITE/ green
Disarm: GREEN/ orange
First pulse on GREEN/ orange wire will disarm the OEM alarm but doesnt unlock the door, right?
Second pulse on GREEN/ orange wire doesn't unlock the door either, right?
This is corect. the double pulse on this will disarm and unlock all doors.
equate wrote:
TOYOTA: Lets use Corolla 2003 as example:
Unlock: blue
Disarm: blue/black
First pulse on blue/black wire will disarm the OEM alarm , and unlock the drive door, right?
Second pulse on blue/black wire will unlock the other doors, right?
This is corect. the double pulse on this will disarm and unlock all doors. ------------- Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: equate
Date Posted: November 30, 2005 at 10:41 PM
hi, Velocity Motors Thanks for your help. I have other questions now. Nissan: lets use ALTMA 2002 as example:
Disarm: WHITE/ blue When press "remote start" button, there is a pulse on WHITE/ blue , right? after engine is started. then there is another pulse on REARM wire, right? Now, the OEM alarm is on the arm mode. Now, ignition has power. it is hot. So, why doesnt the OEM alarm go off because it detects keyon signal now?
Posted By: Mike M2
Date Posted: December 01, 2005 at 6:46 AM
The alarm doesn't react because the ignition is already on, and won't rearm at all. Even if you pulse arm on an Altima, it stays off because the car is running. FYI, new altimas don't need a disarm hooked up at all to remote start. They will automatically disarm when the ignition is turned on, even if it doesn't detect a key in the cylinder(kinda dumb, huh?). All new Nissans are this way. New Toyotas(say, sequoia) needs to see that key in the ignition and knows to disarm when started.
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Mike M2
Tech Manager
CS Dealer Services
Posted By: equate
Date Posted: December 01, 2005 at 12:55 PM
Mike M2 wrote:
The alarm doesn't react because the ignition is already on, and won't rearm at all. Even if you pulse arm on an Altima, it stays off because the car is running. FYI, new altimas don't need a disarm hooked up at all to remote start. They will automatically disarm when the ignition is turned on, even if it doesn't detect a key in the cylinder(kinda dumb, huh?). All new Nissans are this way. New Toyotas(say, sequoia) needs to see that key in the ignition and knows to disarm when started.
Thanks Mike. seems your points are right. But, if rearm wire is not necessary after remote started, why do all of compustar's remote starters send a pulse on rearm wire after remote started? Is it for locking the doors? And how about the BENZ C280 1996, my friend told me if there is pulse on "disarm", the car doors are unlock. Is it truth?
Posted By: Mike M2
Date Posted: December 01, 2005 at 4:27 PM
Now that's an unusual car, and a good reason to have a pulse after start wire. On a C280 you pulse before start the unlock to disarm and unlock, then pulse after start to relock. The alarm doesn't rearm because the ignition is on. We do this on certain Accords also to avoid having to get a disarm inside the drivers door.
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Mike M2
Tech Manager
CS Dealer Services
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