1999 Ford Ranger Alarm Trouble

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=16249
Printed Date: June 08, 2024 at 3:49 PM

Topic: 1999 Ford Ranger Alarm Trouble

Posted By: bcranger
Subject: 1999 Ford Ranger Alarm Trouble
Date Posted: July 13, 2003 at 1:45 PM

Recently installed Avital alarm into 99 Ranger extend cab, 4 door. Also installed actuators and all appropriate relays etc. Everything works fine and as expected but the alarm will go off after being armed for about 1 hour. This occurs regardless of the shock sensor setting.

I'm guessing there has to be some sort of voltage drop or something. Someone told me to put a 10K resistor in series with the dome light and that is should fix the problem.

Anyone else experienced this problem with rangers or is the brain maybe a junker?

Thanks

Replies:

Posted By: 10nesne1
Date Posted: July 13, 2003 at 2:28 PM

Most Ford vehicles have a GEM module sends a pulse to the door pins every 15 to 20 minutes and checks if the doors are closed or not. This will trigger your alarm system to false alarm. Here is a diagram will isolated the door pin trigger. This diagram will work with all newer Ford vehicles start from 99 and up.

https://www.bulldogsecurity.com/wires2/wiringimages/WINDSTAR%20DOORPINS.gif

Good luck

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