2008 jeep liberty remote start problem
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=104092
Printed Date: May 05, 2024 at 10:48 AM
Topic: 2008 jeep liberty remote start problem
Posted By: hr220a
Subject: 2008 jeep liberty remote start problem
Date Posted: April 18, 2008 at 11:57 AM
I just finished putting a Prestige APS-687 in a Jeep Liberty. It starts and runs for 5 seconds then shuts off and repeats 2 mopre times. It is set to voltage sensing. Does this mean it needs to have a tach signal or could it be something else?
Replies:
Posted By: mrcllusb
Date Posted: April 18, 2008 at 12:51 PM
I would definitely use the Tach signal instead of voltage sense.To me tach signal is solid.
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"ole blake"
Posted By: 808hi
Date Posted: April 18, 2008 at 1:23 PM
Did you use a immobilizer bypass module?
Posted By: Chris Luongo
Date Posted: April 18, 2008 at 2:01 PM
Hmm, 5 seconds doesn't sound right. Are you sure is isn't more like 1.5-2 seconds, or 10 seconds?
Runs for 1-2 seconds, engine dies, ignition stays on for a short time: Probably the transponder bypass isn't right. Temporarily unplug your bypass, insert a good key almost all the way into the ignition, and try again.
Runs 10 seconds, shuts off, and does the same thing again twice Go into programming, and change the voltage threshold to the >.5 volts setting.
Posted By: hr220a
Date Posted: April 18, 2008 at 2:10 PM
It could be closer to 10. I set the voltage threshold to >.5 and that didn't fix it.
Posted By: gus1
Date Posted: April 18, 2008 at 9:27 PM
There will be a red flashing light in the cluster when it dies.....
Check that your transponder ring is positioned properly, and that it is actually programmed. To eliminate a setting issue, unplug your antenna ring, stick a key in the ignition, and then remote start. If it starts successfully, you have a transponder issue.
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Wherever I go, that is where I end up......
Posted By: Chris Luongo
Date Posted: April 19, 2008 at 8:38 AM
Hmm, I've never had to hook up tach on the new-style Chryslers.
Is the air conditioner on during remote start? (Leaving the climate controls on defrots turns the AC on too.) Try making sure the AC is off.
Also, try this:
Turn ignition on, turn blower on high, rear defroster on, high beam headlights on. Leave it like this for maybe 5 minutes.
That should lower the battery's voltage a little bit.
Then, turn all the accessories back off, turn the car off, and try the remote starter again.
P.S. You don't have the car hooked up to a battery charger, do you? That'll mess up voltage sensing for sure.
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