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the12volt`s installbay - Mobile Electronics Forums the12volt's install bay / Car Security and Convenience

Subject Topic: 2000 Dodge Neon Factory Alarm Problems (Topic Closed Topic Closed)

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jc18750
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Posted: September 04, 2005 at 1:51 PM - IP Logged  

So i've been installing alarms for about 4 years now and this one is making me angry. I am putting it on a 2000 Dodge Neon Highline with power windows, locks, and a stock security system. I have put the alarm on, hooked up the keyless entry, remote start, hooked up the imobilizer bypass module (556U), everything on the alarm that i hooked up works great.

But here's the kicker. The factory alarm comes on when I lock the car with the alarm that i installed. but when i unlock the car with my remote. The doors unlock, but the factory alarm stays on. So you open the door and the horn goes off.
I wired the locks through the light green wire above the kick panel, as described. i use a neg trigger through a 1.5 ohm to unlock it, and a neg trigger through a 270 ohm to lock it.
Here comes the good part. ---
   When i lock it through the 270 ohm resistor using the neg straight from the alarm, the doors lock and the stock alarm comes on. if i use the 270 ohm resistor through a relay and draw the source ground from the chassy, the doors lock but the factory alarm stays off.
But no matter what i do, i cannot get the factory alarm to turn off with the locks. When i use no resistor, relay or not, the car locks and the factory alarm comes on. The owner doesn't care if the factory alarm works or not, but i don't know where it is.
So i either need to disable/remove the factory alarm, or figure out how to effectively disarm the factory system during unlock. Thanks for your input.
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iskidoo
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Posted: September 04, 2005 at 7:36 PM - IP Logged  

Are you double pulsing the unlock wire? You will need to. Also your unlock with factory security should be through a 7500 ohm resister not a 250 ohm resistor. The lock should be through a 2700 ohm resistor not a 1000 ohm resistor. The 1000 & 250 ohm resistors are for the Neons without factory security.
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jc18750
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Posted: September 04, 2005 at 7:44 PM - IP Logged  

Thanks, I'll give that a try tonight, and let you know how it goes.
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jc18750
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Posted: September 05, 2005 at 7:51 PM - IP Logged  

Works perfectly. case closed.
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