2003 Ford F Series door lock

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=22687
Printed Date: July 18, 2025 at 8:56 PM

Topic: 2003 Ford F Series door lock

Posted By: rickgood
Subject: 2003 Ford F Series door lock
Date Posted: December 10, 2003 at 11:26 PM

Hello

Are external relays required to operate both door locks on this pick- up or is there a module interphase available to multi-plex with the BCM. I am not sure if the 2003 wiring diagram is different than the 2000 which is posted here. I am using a clifford cyber series. thanks Rick

Replies:

Posted By: profuse007
Date Posted: December 11, 2003 at 3:15 AM

heres a thread may help the install

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Houston,TX
"The two most common elements in the universe are H+ and stupidity" (Ellison).

Posted By: NowYaKnow
Date Posted: December 11, 2003 at 5:43 AM

With factory keyless entry they are negative tap in locks. Without factory keyless entry they are reverse polarity which means you need to use relays and cut the wires. Good luck,

Mike

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