791xv in a 2000 Ford F350

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mobilevt

Copper - Posts: 73

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Joined: October 29, 2003

Location: Washington, United States

Posted: January 23, 2005 at 2:57 AM / IP Logged

I am having some problems with this... I just installed this alarm in my friend's diesel truck.

Everything worked fine and worked properly (or it seems)

He called and told me that 20 minutes after arming, it went off, showing the door icon on the remote. He did this several times, same 20 minutes. I'm stumped. Any ideas what that could be? I tapped directly to the door switch wire inside the door to get my door sense. It worked fine when I tested the alarm and it went off when I opened it. Any ideas?

Sean

Emergency Vehicle Technician

Got Freedom? Thank a vet!

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johnnydi77

Copper - Posts: 54

Joined: May 17, 2004

Location: United States

Posted: January 23, 2005 at 8:41 AM / IP Logged

In that vehicle the BCM shutsdown after a given period of time. When this happens the ddor trigger wire sees a small pulse enough to trigger an alarm but not strong enough to trip a relay. Take a relay put 85 neg door pin of truck, 86 12v, 87 ground, 30 neg door input of alarm.

John J. DiStefano Jr.

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mobilevt

Copper - Posts: 73

Joined: October 29, 2003

Location: Washington, United States

Posted: January 23, 2005 at 11:15 AM / IP Logged

John, THANKS! I'm going to go back to my friends today... I'll let you know how it went!

Sean

Emergency Vehicle Technician

Got Freedom? Thank a vet!

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mobilevt

Copper - Posts: 73

Joined: October 29, 2003

Location: Washington, United States

Posted: January 23, 2005 at 4:08 PM / IP Logged

John,

I just installed the relay, it worked beautifully! I wonder how would you know about that fix?

Anyway, MANY thanks!!!

Sean

Emergency Vehicle Technician

Got Freedom? Thank a vet!

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791xv in a 2000 Ford F350

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