Alarm Goes Off Like Clock Work Every 45 m
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=67218
Printed Date: May 15, 2025 at 3:20 PM
Topic: Alarm Goes Off Like Clock Work Every 45 m
Posted By: mwrose
Subject: Alarm Goes Off Like Clock Work Every 45 m
Date Posted: November 28, 2005 at 5:37 PM
I just instaled a Fusion F-2000 in my '04 F150 Heritage. Everything was installed as it should be except the valet swith and the engine disable portion, don't really have a use for the valet switch and don't care to have the engine disable feature.
What I don't understand is this thing goes off like clocwork every 45 mins. You can set your watch by the damned thing.
Any suggestions ?
Replies:
Posted By: OhioMike1101
Date Posted: November 28, 2005 at 5:57 PM
relay isolate the door trigger
Posted By: cntrylvr79
Date Posted: November 28, 2005 at 5:58 PM
Yeah it's the GEM module in the truck falling asleep the thing sets a pulse down the door trigger lines which the alarm reads as someone opening the doors so here's how to fix it. https://www.directechs.com/techtips/pdfs/resources/security/directed_techtips/1076.pdf ------------- Cause I'm So white and nerdy...
First Class Certi-fried installer
Posted By: 05gt
Date Posted: November 28, 2005 at 5:59 PM
what is happening is your alarm is false triggering cause on the new fords and the gem module shuts down I believe and inturn the alarm thinks the doors get opened, that is why your alarm is going off you have to get each door trigger wire seperately and diode isolate if you don't have factory keyless, left front door is BLACK / YELLOW and right front door is BLACK/ pink, these wires are located in the driver kick panel gray plug pin22 and 23 if you have factory keyless all wires are found in the BCM, left front is BLACK / YELLOW, right front is BLACK/ pink, left rear is BLACK/ lt.blue, and right rear is black.white all wires have to be diode isolated
Posted By: sparkie
Date Posted: November 28, 2005 at 5:59 PM
The problem may be due to a false signal coming back down your door pin wire circuits from the body computer. Try installing diodes on the lines to prevent this. Most alarms can indicate by some means which zone triggered the alarm to sound. This will help you diagnose the problem. The problem could also be your power source is going asleep and triggering the alarm.
-------------
sparky
Posted By: mobile1
Date Posted: November 28, 2005 at 6:01 PM
or try this. open driver door. turn the ignition on hit unlock on the door switch 3 times turn the ignition off. hit unlock 3 times turn the ignition on hit unlock 2 times. the horn should honk if it works this is a code from ford to shut off the GEM module and keep your problem from happening. It doesn't work on all fords so it may not work on yours.
Posted By: mwrose
Date Posted: November 28, 2005 at 6:07 PM
Sounds kind of squirly, but I'll try this before ripping apart everything I just installed.
Thanks everyone for the help!
I'll let you know how it turns out.
Posted By: mwrose
Date Posted: November 28, 2005 at 6:15 PM
I got the horn to honk, now I'll wait 45mins and see what happens.
Posted By: mwrose
Date Posted: November 28, 2005 at 7:08 PM
mobile1 : No dice on the trick you mentioned, the thing still went off after 45mins. Thanks for the help though.
Now where's my wire cutters ?
Posted By: auex
Date Posted: November 28, 2005 at 7:28 PM
cntrylvr79 wrote:
Yeah it's the GEM module in the truck falling asleep the thing sets a pulse down the door trigger lines which the alarm reads as someone opening the doors so here's how to fix it.
https://www.directechs.com/techtips/pdfs/resources/security/directed_techtips/1076.pdf
I will second that. ------------- Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.
I've been sick lately, sorry I won't be on much.
Posted By: Teamrf
Date Posted: November 28, 2005 at 10:51 PM
I third that...
-------------
~The Rookie~
Rookie of the year that is...
Don't let the smoke out of your equiptment..it doesn't go back in.
Posted By: KarTuneMan
Date Posted: November 29, 2005 at 12:36 PM
I'll give that a forth......the double diode trick, seems like overkill, but effective
-------------
Posted By: Mike M2
Date Posted: November 29, 2005 at 4:35 PM
Yep, same problem with mustangs....
-------------
Mike M2
Tech Manager
CS Dealer Services
Posted By: mwrose
Date Posted: December 02, 2005 at 5:46 PM
The double diode trick worked like a champ.
Thanks for all the help folks !
|