2003 Ford F-150 alarm triggering

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=23571
Printed Date: July 14, 2025 at 9:25 AM

Topic: 2003 Ford F-150 alarm triggering

Posted By: damangino
Subject: 2003 Ford F-150 alarm triggering
Date Posted: December 29, 2003 at 8:39 PM

Had a DEI Valet 554R recently installed in my 2003 Ford F-150. After arming the alarm, the alarm triggers after 5 to 10 minutes and the LCD remote shows a flashing door. Any clue as to what is causing this and how to fix it?

Any help would be greatly appreciated. I would take it back to the installer but, he's in Phoenix, AZ and I'm now in Tacoma,WA.

Thanks, Dave

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Dave

Replies:

Posted By: ck auto
Date Posted: December 29, 2003 at 9:32 PM

hi the gem module pulses the door every so often relay isolate and this will solve your problem pin 30 to one side of door trigger wire pin 87 to other side of door trigger wire pin 85 to door trigger on door side and pin 86 to 12v the trigger wire needs to be cut in half for this to work

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good luck
kirk

Posted By: auex
Date Posted: December 29, 2003 at 11:04 PM

No way, some one in phoenix did that? That is one of the most common vehicles to put an alarm in here, they should have known about it. At any rate, if you can find out what wire/s that were tagged for the door trigger it could help.

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Certified Security Specialist
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Posted By: black2nd12
Date Posted: December 29, 2003 at 11:13 PM

you could also double isolate the door trigger with diodes.

Posted By: ck auto
Date Posted: December 30, 2003 at 2:47 AM

hi check it out and see what happens cut the door trigger to the alarm and see what happens if your poroblem goes away if it does relay isolate. we all have bad days with the brain on auto pilot installer could have forgot or new installer couldn't hurt to try see if it goes away

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good luck
kirk

Posted By: damangino
Date Posted: December 30, 2003 at 9:00 AM

Thanks for the help

Dave

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Dave