Factory OEM alarm disarm 2003 VW

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=8561
Printed Date: August 15, 2025 at 11:22 AM

Topic: Factory OEM alarm disarm 2003 VW

Posted By: BMLIME
Subject: Factory OEM alarm disarm 2003 VW
Date Posted: January 25, 2003 at 11:32 AM

I have a 2003 VW jetta 1.8 turbo.This is the scenario: I have a 550 esp and I arm it.I go to disarm it after 5 seconds.The viper disarms but the factory alarm stays armed the doors will not unlock.But if I disarm the alarm within 5 seconds the alarm disarms both OEM and viper and doors unlock. If it is remote started the alarms will disarm and doors will unlock. My installer said that the system sleeps after 5 seconds"the oem".Any suggestions would be helpful!!

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BMLIME

Replies:

Posted By: themagicone
Date Posted: January 25, 2003 at 12:08 PM

Still looking for that info? Tell ya what, call up your VW dealer and try to get them to give you a diagram of the alarm wiring then email it to me and I'll take a look at to see if i can find out what to do. Also, see if you can find a haynes or chiltons manual, anything with factory wiring diagrams.

Posted By: BMLIME
Date Posted: January 25, 2003 at 12:35 PM

I'm still looking.....I think I need to put in a relay do disable the factory alarm so my doors will unlock or vise versa.Any suggestions on the relay and how to wire that..

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BMLIME

Posted By: themagicone
Date Posted: January 25, 2003 at 1:54 PM

Have you tried the double pulse on the viper? If that dosent do it, what you can do it check the wries at the factory alarm moudle and find one the goes 12vlts or ground with you turn the key in the door to unlock and wire a realy to that to disarm the alarm.

Posted By: BMLIME
Date Posted: January 25, 2003 at 2:26 PM

It is double Pulsed.How would the relay wire diagram look like

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BMLIME

Posted By: themagicone
Date Posted: January 25, 2003 at 11:21 PM

Well on the viper, there should be a 2 pin orannge plug. One of the wires should be lt. GREEN/ black

85 12vlts
86 LT. Green black from alarm
30 ethier to 12vlt or ground, depending on if the wire goes 12vlts or ground when you turn the key in the door to unlock
87a not used
87 to the wire that is changes to ground or 12vlt when key is turned

Posted By: BMLIME
Date Posted: January 26, 2003 at 2:05 PM

OK I'll pass the info on to my installer and hope that he finds the problem

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BMLIME