1998 Ford F-150 Alarm Installation

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=53571
Printed Date: May 10, 2025 at 10:35 PM

Topic: 1998 Ford F-150 Alarm Installation

Posted By: aerodude31484
Subject: 1998 Ford F-150 Alarm Installation
Date Posted: April 08, 2005 at 10:31 PM

I am installing an autopage RF-310 alarm system in a 1998 Ford F-150. I followed the diagrams as posted on the site and also reviewed the disk with the #201 and #203 diagrams. My mind is boggled due to the fact that the truck was not listed as having a keyless entry system. I pulled the power lock switch and probed some wires. Here is what I found...

A +12v wire into the switch
A pink wire, when the switch is activated to lock receives +12v and locks the doors
A pink/some color(notes are at the shop, sorry) when the switch is activated receives +12v and unlocks the doors

To me that seems to be that the truck has the keyless entry and does not require the reversal rest at ground. I should be able to connect the alarm directly to the wires and have no problem installing. Am I wrong for thinking this and do I need to complete the reversal rest at ground? Let me know what you think, as any help is greatly appreciated.

-Austin

Replies:

Posted By: bretbowman
Date Posted: April 09, 2005 at 3:46 AM

FORD, F SERIES LIGHT DUTY, 1998, Power Unlock

Negative pulse, type B, on keyless entry models. Five wire, type C, on non-keyless models, mastered from the driver switch.

Power Lock	pink / YELLOW	passenger kick panel
Power Unlock	pink/green	passenger kick panel
Lock Motor	pink/black	driver kick panel
Unlock Motor	RED / orange	driver kick panel

Hope that helps. If you don't have a remote to unlock the doors, then the system is very likely NOT keyless system.

Good luck! posted_image

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Posted By: KarTuneMan
Date Posted: April 10, 2005 at 2:02 AM

Ide bet my left nut that your locks are 5 wire..... REV polarity....

If I'm wrong, make sure you use a relay for the NEG trigger. If I'm right, use 2 relays......

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