1999 expedition lock problem

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=64720
Printed Date: May 12, 2025 at 11:31 AM

Topic: 1999 expedition lock problem

Posted By: Simplemitch
Subject: 1999 expedition lock problem
Date Posted: October 20, 2005 at 10:15 AM

just put an Ultrastart remote start / keyless / alarm on a 1999 Expedition and i'm havin a problem with the locks. Pressing Lock gets a confirm chirp, but no locking, pressing Unlock does a bit of "machine-gun" unlocking (about 4 or 5 pulses). Also have a question on the Pats system. For the bypasses that dont need a spare key, do you have to use TWO real keys before you program the bypass, ore will one work? Oh, also.... it's a two way remote and the "ignition on" indicator remains on. Any thoughts? Thanks in advance.

P.S. I will be unable to respond to any questions until about 4pm EST.

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Mitchell Whitney, Installer/technician
Mainstreet A/V

Replies:

Posted By: Simplemitch
Date Posted: October 20, 2005 at 4:19 PM

I'm having probs with the locks.

Anyone able to help??

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Mitchell Whitney, Installer/technician
Mainstreet A/V

Posted By: kgerry
Date Posted: October 20, 2005 at 4:49 PM

did you use relays to supply a true ground?

most bypass modules for newer Fords require you have 2 keys, just like the Chyslers, unless you use a data module....

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Kevin Gerry
Certified Electronics Technician
MECP First Class Installer

Owner/Installer
Classic Car Audio
since 1979

Posted By: mo12v
Date Posted: October 20, 2005 at 4:52 PM

Your UltraStart may not have enough GROUND Output to Lock & Unlock.
You may have to use Relays

Power Lock	PINK / YELLOW	PASSENGER KICK
Power Unlock	PINK/L GREEN	PANEL

Negative Pulse Door Locks

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MO

Don't Learn from Others Mistakes
You Might Be the One That Knows.

Posted By: Simplemitch
Date Posted: October 20, 2005 at 5:20 PM

Ah.... no, i didnt use relays. I'll try that. Just in case that doesn't work, any other possibilities? (just wanna get it solved in one shot so the customer doesnt have to keep coming back).

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Mitchell Whitney, Installer/technician
Mainstreet A/V

Posted By: dhawthrone
Date Posted: October 28, 2005 at 1:35 PM

i had this problem when i installed my Code Alarm on my 2000 expedition. The problem was the double-pulse lock setting. I set it to single, no more problems