2008 Ford F-250 Keyless Entry
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=145000
Printed Date: July 02, 2025 at 9:10 AM
Topic: 2008 Ford F-250 Keyless Entry
Posted By: mbaker1082
Subject: 2008 Ford F-250 Keyless Entry
Date Posted: November 30, 2018 at 11:15 AM
Hey guys I have a 08 5.4 engine crew cab F250. It is an xlt and has power door locks but was ordered without keyless entry and no theft system ( truck was ordered as a fleet vehicle). I am getting ready to install a Compustar cs800-s remote start and keyless entry. My question is how do I wire the door locks ? All my research gives me conflicting answers on what type of door lock system I have and if I need to add 2 relays for reversing polarity. All the wiring diagrams I have found shows I have 1 unlock and 1 lock wire on the truck. The Compustar has the same 2 wires. Thanks again guys I have done a few remote starts in the past but it was older vehicles that had simple wiring.
Replies:
Posted By: eguru
Date Posted: November 30, 2018 at 11:28 AM
You can wire the Compustar's Unlock- and Lock- outputs directly to the corresponding wires in your truck. No relays required.
Posted By: mbaker1082
Date Posted: November 30, 2018 at 11:30 AM
Awesome I was hoping that it would be that easy but usually all my projects never go that way lol Thank you you made my day.
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