2004 expedition keysense?
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=107714
Printed Date: May 17, 2024 at 9:35 PM
Topic: 2004 expedition keysense?
Posted By: wjbarton
Subject: 2004 expedition keysense?
Date Posted: September 26, 2008 at 5:16 AM
Hi all, I'm having the darndest time with the remote start on a 2004 Ford Expedition eddie bauer, using a Viper 5701 and PK04 PKFORD bypass. The bypass seems to work ok - minus keysense. When I remote start, the truck's security light goes solid instead blinking, which I believe means I programmed the bypass properly, but the start never engages. If I stick anything in the ignition keyhole, like a random key or a screwdriver, the truck will remote start. I don't have to use a PATS key - sticking my house key in the cylinder just enough for the ignition to realize something's there gets me a remote start every time. I've tried adding a relay to the transmit of my bypass - no luck - I think that I know that the BLACK/ pink wire at the ignition is keysense - or at least that's what I've read, but when I use the Viper's blue remote starter output designated for keysense, nothing dfferent happens - the start won't engage. Has anyone seen this problem, or can anyone see what I'm doing wrong? My multimeter is lost, will buy another one at some point. Thanks!
Replies:
Posted By: Mike M2
Date Posted: September 26, 2008 at 6:30 AM
I believe the the keysense on that truck is a positive, not negative. The output on the RS is neg. Since the truck only has one ignition i use the second ignition output on the RS to power it up....
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Mike M2
Tech Manager
CS Dealer Services
Posted By: KarTuneMan
Date Posted: September 26, 2008 at 9:52 AM
I know that the BLACK/ pink wire at the ignition is keysense - or at least that's what I've read, yes, it is. and Mikes idea is a darn good one!
Posted By: wjbarton
Date Posted: September 26, 2008 at 1:36 PM
Thanks for the input guys, that valuable information. I just tried using my Viper's flex ign2/acc2/starter2 wire on the BLACK/ pink oem wire at the ignition harness, and no go. I programmed the wire as ign2, no go, then acc2, no go. With those configs, the Viper actually only remote starts if I put my key in AND I turn it to the ACC ON position. I'm wired up just like Bulldog Security suggests: 12 VOLT CONSTANT LIGHT GREEN/ PURPLE (+) IGNITION SWITCH HARNESS
STARTER RED / LIGHT BLUE (+) IGNITION SWITCH HARNESS
IGNITION 1 BLUE/LIGHT GREEN (+) IGNITION SWITCH HARNESS
ACCESSORY /HEATER BLOWER 1 BLACK/ LIGHT GREEN (+) IGNITION SWITCH HARNESS Plus now I have my alarm's 2nd ignition/acc/starter on the BLACK/ PINK keysense oem wire. I'm confident that my remote start bypass is ok, since the security light comes on solid, and in certain configs I just need to trigger the keysense by barely sticking a screwdriver in the ignition. Am I missing a relay or something simple? Thanks!
Posted By: Mike M2
Date Posted: September 26, 2008 at 9:53 PM
The light on solid is good. I've done a hundred of these trucks, keysense really isn't needed. All that should be needed is power, ignition and bypass to start that truck. Recheck your connections, chaeck the RS output with a DVM...
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Mike M2
Tech Manager
CS Dealer Services
Posted By: wjbarton
Date Posted: September 26, 2008 at 11:09 PM
Thanks Mike, that's reassuring. I just found my voltmeter, will test out this weekend.
Posted By: wjbarton
Date Posted: November 22, 2008 at 9:26 AM
You were right, I just needed to use power and ignition on the truck, with the PK04 - no keysense needed. I just had to add the RED / black heavy gauge from the Viper to constant power, that's it. The purple start wire on the Viper wouldn't get any power during starts otherwise. Thanks!
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