1999 Benz ML 320 Lock/Unlock Wire

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=15986
Printed Date: September 02, 2025 at 11:48 PM

Topic: 1999 Benz ML 320 Lock/Unlock Wire

Posted By: Trav3D1
Subject: 1999 Benz ML 320 Lock/Unlock Wire
Date Posted: July 07, 2003 at 9:41 AM

I recently installed a Viper 790 on a 1999 Benz ML 320. The vehicle has a negative pulse single wire lock and unlock system. The lock functionality is working just fine, but I was not able to figure out how to send the double negative pulse to unlock the doors.

I figure that I may need a relay, resistors, or diodes, but need some further clarification and explanation of what additional steps I need to follow.

Please advise......Thanks

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Trav

Replies:

Posted By: profuse007
Date Posted: July 07, 2003 at 12:11 PM

there is another setting on menu 2 programming that uses double pulse

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Houston,TX
"The two most common elements in the universe are H+ and stupidity" (Ellison).

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