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05 f250 alarm?

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=68733
Printed Date: May 15, 2025 at 9:41 PM


Topic: 05 f250 alarm?

Posted By: atf_jeepguy
Subject: 05 f250 alarm?
Date Posted: December 19, 2005 at 3:03 PM

it has 7 wires at the lock/unlock button in the door.

1 is positive always .1 is neg always. it has 5 more wires.

i am wiring in an alarm with 2 leads from alarm to activate the locks.

i cant figure out how to wire them in. i have found diagrams & i might have to wire in relays also.

i just cant figure out how to get them wired together to work

help please




Replies:

Posted By: 05gt
Date Posted: December 19, 2005 at 6:47 PM
does the vehicle have factory keyless



Posted By: ruse
Date Posted: December 19, 2005 at 8:53 PM

If your truck has factory keyless in the drivers side kick panel there is a BLACK/ white wire and a wire/red wire. BLACK/ White is your Lock wire and the WHITE/ Red is the unlock wire. Each needs a negative pulse from the alarm.

If your truck does not have factory keyless in the drivers kick panel there is a Pink/Green and  Pink / YELLOW. Pink / YELLOW is the Lock wire and the Pink/Green is the unlock wire. This is a 5 wire connection with a relay.

Cut each wire and wire 2 relays. 1 relay for lock and 1 relay for unlock. Make sure you do not cross the lock wires its best to do one at a time. Pins 87 & 85 to a fused constant 12 volt, Pin 87a to the switch side of the wire (the side of the wire coming from the door jam boot.), Pin 30 the motor side of the lock wire, and Pin 86 a negative pulse from the alarm module.



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Ford Authorized Accessory Installer/Dealer


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