Alarm voltage problem
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=53416
Printed Date: October 31, 2024 at 6:18 PM
Topic: Alarm voltage problem
Posted By: kaupps33
Subject: Alarm voltage problem
Date Posted: April 06, 2005 at 5:55 PM
I'm trying to install my keyless entry system on a 2000 Dodge Stratus but I'm kind of stuck. I found the WHITE/ green wire that controls the door locks and measured the voltage when I locked and unlocked the doors which was 6.3 V and 2.45 V. I also measured the voltage outputted by the unlock and lock wires on the alarm module which was .63 V. I know that eventually both wires will connect to the same WHITE/ green wire but I first need to get the voltages to match right? Where do I go from here, do I need a transformer to amplify the voltage outputted by the alarm module? Thanks
Replies:
Posted By: csorb
Date Posted: April 06, 2005 at 6:43 PM
You need to hook up two relays with resistors and have the alarm pulse the relays. (negative pulse from alarm) I believe they are positive door locks and you would need to set it up as follows
relay#1 85 and 87 -12V 86- Unlock(brain)
30- 2.7k resistor (and then to WHITE/ green)
relay#2 85 and 87 -12V 86- Lock(brain)
30- 620 Ohm resistor (and then to WHITE/ green)
GOod luck!
Posted By: kaupps33
Date Posted: April 06, 2005 at 7:02 PM
Hey thanks, I'll give that a shot
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