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Help with DEI 455T and 97 Grand Cherokee

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=12394
Printed Date: July 29, 2025 at 2:05 AM


Topic: Help with DEI 455T and 97 Grand Cherokee

Posted By: Archilea
Subject: Help with DEI 455T and 97 Grand Cherokee
Date Posted: April 18, 2003 at 6:51 PM

I am installing a Crimestopper 900V remote starter into a 97 Jeep Grand Cherokee, and have everything working fine except the door locks.

After working on it for several hours, I came here and found out that door locks aren't that simple on these Cherokees, so I punted and got a DEI 455T to interface to the interface bus.

My problem now is that the doors lock fine, but unlocking doesn't work at all.

I hooked it up as follows:

(-) Trunk Unlock (0.75 sec pulse) from the remote start to the (-) Unlock all (Blue) on the 455T.

(-) Door Unlock (0.75 sec pulse) from the remote start to the (-) Driver Unlock (Blue/White) on the 455T

Lock works as expected, but pressing the Door Unlock button on the remote starter's remote causes the doors to lock, then unlock, then lock again. I have tried to open the door when it's doing this, but can't seem to catch it in time.

Has anyone seen this behavior before?




Replies:

Posted By: Archilea
Date Posted: April 23, 2003 at 7:10 PM

Bump? Anyone have any ideas?

What can I look for?




Posted By: Velocity Motors
Date Posted: April 23, 2003 at 11:10 PM
Just a quick question... why are you using the TRUNK channel as your unlock wire ?

-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA


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