Double Lock Pulse

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=1180
Printed Date: July 19, 2025 at 5:07 AM

Topic: Double Lock Pulse

Posted By: triksterut
Subject: Double Lock Pulse
Date Posted: June 07, 2002 at 3:44 PM

Hey guys / gals,

I need to install a DEI Python 1000 in a BMW convertible. The thing needs a double lock pulse sent when the alarm is armed. This causes the car to lock down the trunk and gas cap. Otherwise, you can just reach in and pull the handle in the door to unlock everything. How do I rig an alarm to send two pulses??

Jeremy

triksterut@aol.com

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Jeremy
triksterut@aol.com

Replies:

Posted By: Chris Luongo
Date Posted: June 08, 2002 at 5:27 AM

I believe you can buy pulse generators that will turn one pulse into two. I'd try PAC at www.go2pac.net, or call someone on the phone at DEI. Once you get a correct part number, most retailers should be able to special-order the DEI or PAC part you need.

Posted By: rbc827
Date Posted: October 05, 2002 at 11:23 PM

Did you get it figured out? From what I have read, the BMW's come with a double lock system which locks the gas cap and trunk. The way to operate this from what I understand is to send a signal to both the lock and unlock wires at the same time. You will need diodes to do this correctly. Search the web for more info on this.

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