relay control through door trigger

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rtm038

Member - Posts: 41

Joined: September 26, 2004

Location: United States

Posted: November 17, 2009 at 7:09 AM / IP Logged

I'm working on a 2006 Expedition with factory keyless entry. Is there a way to wire a relay, using the door triggers (door ajar signal wires) as inputs, so that if someone opens a door, the relay energizes? On the factory system, there 5 door ajar inputs that go from the doors to the VSM and each door rests at ground when closed.

Thanks

Ryan

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96hawkcnvt

Member - Posts: 47

Joined: November 19, 2005

Location: United States

Posted: November 17, 2009 at 5:33 PM / IP Logged

You should be able to do this with 2 relays. The one relay would be energized whenever the door is closed & the other would energize whenever the door is opened. See the diagram below.

relay control through door trigger - Last Post -- posted image.

Hope that helps.

Todd

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howie ll

Pot Metal - Posts: 16,466

Joined: January 09, 2007

Location: United Kingdom

Posted: November 18, 2009 at 2:34 AM / IP Logged

DEI also market a module to give a (normal) neg signal when the door opens, also on some DEI systems you can configure the unit to recognise this. I beklieve only Ford uses this back to front system where the door triggers go to ground on closing and open circuit on opening.

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relay control through door trigger

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