98 Ford Taurus/trunk release

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=38553
Printed Date: July 21, 2025 at 2:50 AM

Topic: 98 Ford Taurus/trunk release

Posted By: Bill Smiley
Subject: 98 Ford Taurus/trunk release
Date Posted: September 03, 2004 at 8:40 PM

I have attempted to install a keyless entry on my daughters 98 Ford Taurus, real simple, got all to work but cannot get the trunk realease to work, do I need an optional relay? At the trunk switch I have purple / YELLOW and grey/red just like the diagrams says, any help would be greatly appreciated

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bsmileynm505

Replies:

Posted By: auex
Date Posted: September 03, 2004 at 8:43 PM

More then likely you need a relay, hard to tell not knowing what keyless module you have.

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Posted By: swamprat323
Date Posted: September 03, 2004 at 8:45 PM

gray/red and its postive. Depending on alarm, most likely need a relay.
make model of alarm

Posted By: Bill Smiley
Date Posted: September 03, 2004 at 8:57 PM

Thanks for the response, this unit is an audiovox AA-925, purchased locally at auto zone, Once I study your diagram, I'll probably understand, I just don't understand why you can't wire in series with the switch wires

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bsmileynm505

Posted By: another-kelly
Date Posted: September 04, 2004 at 12:25 AM

because the alarm (most likely) only outputs a 200mA negative trigger. the trunk pop on your Taurus needs +12V. hence the relay. double check in the install manual for the polarity of the channel 2 (trunk release) output. if it is negative thet use the relay like the above picture.

Posted By: Bill Smiley
Date Posted: September 04, 2004 at 9:29 AM

you are so correct, thanks for simplifying an easy fix, I never thought about 200mA as an output, since the doors all open o.k. I just figured they had the same output voltage, after reading a little more, the doors have +12v out put and the trunk output is 300mA ground pulsed, so relay it is. Thanks guys for the info, you really know your stuff !

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bsmileynm505