2004 Jeep Liberty Remote Start
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=68538
Printed Date: October 31, 2024 at 7:31 PM
Topic: 2004 Jeep Liberty Remote Start
Posted By: wrxsti161
Subject: 2004 Jeep Liberty Remote Start
Date Posted: December 16, 2005 at 5:51 PM
Installed a Viper 160XV (remote start/keyless entry) into a 2004 Jeep Liberty today. Used the 457CW data bus interface. Direct techs tells me to use 555C or in the alternative 556UW for remote start. Well I had no 555C's in stock. Never used one before, so i thought 556UW, no problem. Get everything hooked up, everything is working fine. Remote start cranks up no problem. So, for the hell of it. I go to start the car up reguraly. Put the key into the ignition, car starts, and runs for about 3 sec. then shuts off. The light on the dash board with the key being crossed out if flashing. I think to myself, THIS IS GREAT!!! Anyone know what could cause this, or do I just need to use the 555C instead of the 556UW??????????? Any suggestions would be greatly appreciated.
Replies:
Posted By: another-kelly
Date Posted: December 16, 2005 at 5:55 PM
change the jumper setting inside the 556u. had that same problem in an 01 grand cherokee
Posted By: wrxsti161
Date Posted: December 16, 2005 at 5:57 PM
really!!!!!! Which mode should I set it to. I know the 556UW has a few different modes on it. Thanks alot for your help.
Posted By: Velocity Motors
Date Posted: December 16, 2005 at 6:30 PM
I don't use DEI bypasses, but in all three diagrams it says the jumper is to be the same ? wrxsti161, try this, take the key out of the 556UW and try to start the Jeep and if it does, then you probably have to wire up the key sense wire to the 555UW otehrwise the Sentry system see's two keys at the same time. The wire is LIGHT BLUE at the BCM pin 8 in a 26 pin plug. You need to hook this up to the GREEN wire on the 556UW.
-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: Mike M2
Date Posted: December 16, 2005 at 6:42 PM
I've done a few and have always used 556u bypasses, no problem. There's nothing you need to hook up other than red, black and blue. I've never had to hook up the keysense wire either. Like Jeff says, first verify the key isn't the problem by removing the key in the 556u and starting the car with that.
-------------
Mike M2
Tech Manager
CS Dealer Services
Posted By: chris354
Date Posted: December 16, 2005 at 7:22 PM
Sounds like you hooked the pink wire up on the 556u that makes it latch so the jeep is seeing 2 key. Like mike said just use the red, blck and blue wires for the 556u.
Posted By: streetdream
Date Posted: December 16, 2005 at 7:27 PM
No ignition wire should be hooked up, or it sounds like you didn't hook up status output to the 556U. For future reference...the 556C is MUCH easier to use. I wouls recommend keeping thos on hand, plus it makes the customer happy keeping both keys.
Posted By: OhioMike1101
Date Posted: December 16, 2005 at 8:19 PM
CHDLP2 is what I use. Works great! Never have a problem.
Posted By: wrxsti161
Date Posted: December 16, 2005 at 10:50 PM
on the 556 UW I only used red, black, blue. tried another test though. My worry was that the BCM has blown causing the key to lose its memory. So, what I did next is removed the key from the by-pass. Just set it on the floor. Used the primary key, and tried to start it (I did not want to try to start the car with the key that was in the bypass in case the BCM was frying the chip inside the key. This has happened before by one of my ex-installers) The car started right up, and did not shut off????? WEIRD HUH!!! So I put the by-pass key back in, start it up with the primary key, shuts off again. Test number 2. remote started the vehicle (with key in by-pass) started up just fine. put the key in the ignition, and put it on RUN to see if it would cut-off, and it didnt. Making this even more mind boggling. What am I supposed to do now??? Tell the customer they can only start the car using the viper key FAB????? The car is sitting at the shop, and im going to mess with it some more tomorrow. How stressful, and the people over at DEI are in no hurry to awnser your call. I was on hold for atleast 45 min before I hung up.
Posted By: autotech mobile
Date Posted: December 16, 2005 at 11:14 PM
Never use the pink ign. wire from the 556U except on Mercedes ML. This wire will keep the bypass on the entire time. The key code only needs to be seen when cranking. I tag the keysense wire to shut the bypass down. I have found on select Chrysler vehicles while inserting the key in the cylinder the key security light will turn on. Vehicle will remain running until it is shut down and restarted. After a couple of tries the car will start. I have also came across this issue with the 555C's when the customer inserts the key in the cylinder but does not hit the brake within a few seconds.
Posted By: autotech mobile
Date Posted: December 16, 2005 at 11:28 PM
Also have you checked the status output from your RS? Do you feel the bypass click when you activate the RS. From symptoms you explained above sounds like maybe the status output may be at ground all the time, or the bypass is defective. That would explain it RS fine but not with the key. And the key working fine with the bypass unplugged or key removed. Either way I would still tag the keysense on vehicles that only need to see the code while cranking. I still have a few customers that leave their keys in the ign. when they RS their vehicles. Without a keysense shut down these customers would be **** out luck.
Posted By: Mike M2
Date Posted: December 17, 2005 at 8:55 AM
Yes you need to put your hand on the 556u and feel the relay inside click on and off when you remote start. It sounds like you have the blue wire hooked up incorrectly, or isn't fuctioning right...
-------------
Mike M2
Tech Manager
CS Dealer Services
Posted By: wrxsti161
Date Posted: December 17, 2005 at 8:56 AM
I DID NOT hook up the pink, violet, or green wires from the 556UW. I guess my next try is going to be to hook up the green wire from the 556U to the vehicles keysense wire. I did the following with the blue status wire. The 457CW data bus interface has a blue status wire as well. So I hooked the status wires from 556U, 457CW, and spliced both of them into the 4 pin harness coming off of the Viper 160. This 4 pin harness has blue, violet, orange, and I think another color but I cant remember which. So I have 2 blue wires going into the Viper 160 status wire. Think that would have anything to do with it???? Another thought I had overnight was that the 457CW has a main harness, plus it has a seperate small harness with 2 pink wires, and a brown wire. This seperate harness according to the instructions is to be used for Jeep Liberty only. The wires do the following Pink - goes to lock/unlock in the vehicle (Mopars have 1 wire lock/unlock wire) pink/white - Goes to Factory Alarm disarm wire Brown - Goes to drivers side door trigger wire. I only hooked up the pink wire. No problem with locks/doorlocks. I did not hook up the other 2 wires. It only says to hook them up if the vehicle has a factory security system. Would hooking those 2 wires up, or not hooking them up have anything to do with the sentry key system????
Posted By: Mike M2
Date Posted: December 17, 2005 at 9:05 AM
Nope, there's reason the 556U is staying on and it isn't because of the green pink or violet wires. If you hooked the blue wire from the 457C up to the status wire, that's wrong! It should be blue/white from the 457C, the blue from the 556U both going to the blue on the alarm....
-------------
Mike M2
Tech Manager
CS Dealer Services
Posted By: wrxsti161
Date Posted: December 17, 2005 at 9:09 AM
yes blue/white is what I hooked up from 457CW. sorry. I forgot it had a white stripe. solid blue coming off the 457CW I believe is (-) unlock. Maybe its where I tied in the 12 volt constant from the 556U. I normally dont make 100 different 12volt constant connections at the ignition harness. I normally wire bypass/data bus interface red wires into the main thick gauge red wire coming off of the alarm.
Posted By: wrxsti161
Date Posted: December 17, 2005 at 9:59 AM
so if I goto remote start the car with my hand on the 556U listening for it to click over, and the car starts no problem, but I dont hear a click this is because the by-pass is staying on????? I have been installing alarm/remote start systems for about a year now. This may seem like a really stupid question, but it will help me understand, what exactly does the status wire do??? Does it turn the bypass on when the remote start is triggered?????
Posted By: wrxsti161
Date Posted: December 17, 2005 at 10:03 AM
This is starting to make sense now if the 556U is staying on. meaning the car is constantly reading the key in the 556U. So if I put another key in the igniton just to start it, its getting confused. I really am hoping its something stupid like that. I will just try another 556U. Maybe its defective, or maybe I shorted it while installating.
Posted By: JWorm
Date Posted: December 17, 2005 at 10:36 AM
Did you split the blue status output with diodes? Its probably backfeeding from the 457c keeping the 556u on. That should fix your problem.
Posted By: wrxsti161
Date Posted: December 17, 2005 at 10:52 AM
holy crap JWORM. your right. I am going to try that when I get to work. I never thought about that. I DO KNOW for a fact that when I was unplugging/plugging the main harness on the 457CW, the 556U would click over each time I plug it, and unplugged it. I thought that was a little strange!!!!
Posted By: KarTuneMan
Date Posted: December 17, 2005 at 11:07 AM
welcome to the world of DEI.....status output, I never could really understand why they didn't call it what it is...ground out while remote started, or running. What is "status output" is a real GOOD question.... -------------
Posted By: Mike M2
Date Posted: December 17, 2005 at 11:13 AM
You shouldn't need to diode the blue wires, they should work with no backfeed. Yes, you need to hear and feel the click of the relay when the igniton turns on from remote starting, and turn off a few seconds afterwards. If it isn't ther's a problem. I have NEVER seen a defective 556U, so i'd check wiring again...
-------------
Mike M2
Tech Manager
CS Dealer Services
|