OEM Alarm Problems w/ Alpine Alarm

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=56464
Printed Date: July 18, 2025 at 11:03 AM

Topic: OEM Alarm Problems w/ Alpine Alarm

Posted By: tony407
Subject: OEM Alarm Problems w/ Alpine Alarm
Date Posted: May 26, 2005 at 2:17 AM

First of all, I want to say thanks for this site and all the help it's given me installing my first car alarm system. It's helped tremendously!!

I just installed an Alpine SEC-150R into my 2001 Chevy S10. Everything went in as planned, excpet that every once in a while when I disarm the alarm the OEM alarm starts honking the horn. Of course, since I don't carry the OEM transmitter around with me any more I have to get in and turn on the ignition to get the horn to stop.

I looked up the factory alarm disarm information, which told me it's a light green wire in the purple plug at the BCM. Anyway, I tried cutting this wire but the factory alarm still worked. I spliced it back together and left it intact.

What do I need to do to disable the OEM alarm? I searched like crazy but I can't find the exact answer I'm looking for.

Thanks in advance, Tony

Replies:

Posted By: tony407
Date Posted: May 26, 2005 at 2:24 PM

Anyone?

Posted By: tommy...
Date Posted: May 26, 2005 at 3:25 PM

OEM Alarm Disarm

L GREEN (-)

ABOVE DRIVER'S KICK PANEL

ground this wire...this will keep oem alarm from triggering...

-------------
M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!

Posted By: tony407
Date Posted: May 27, 2005 at 12:55 AM

tommy... wrote:

OEM Alarm Disarm L GREEN (-) ABOVE DRIVER'S KICK PANEL
ground this wire...this will keep oem alarm from triggering...

I could be wrong, but I believe this wire showed 12volts. And you want me to GROUND it?????

Tony