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2005 Mustang, Mannix w/ Remote Start


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jdiebolt 
Member - Posts: 4
Member spacespace
Joined: May 16, 2005
Location: United States
Posted: May 16, 2005 at 11:57 PM / IP Logged  
Now the big question is how do I do it?  My Doors on my car are Grounded when closed and Open when Open.  My Car alarm takes a negative input for Door Open Detection.  So I need to convert the Ground signal when the door is closed to an Open signal,  and the Open signal when the door is Open to a Ground signal.  I know  (think) that this can be done with a relay, but need some help as to how to wire it.     And just to make it more complicated, I need both doors to trigger the same Ground signal if either is Opened.
KarTuneMan 
Platinum - Posts: 7,056
Platinum spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member consistently provides reliable informationspace
Joined: December 14, 2004
Location: Isle Of Man
Posted: May 17, 2005 at 12:38 AM / IP Logged  

A Ford maybe?

year make and model........what type of unit?

jdiebolt 
Member - Posts: 4
Member spacespace
Joined: May 16, 2005
Location: United States
Posted: May 17, 2005 at 9:21 AM / IP Logged  
Yes, It is an 05 Mustang, I have installed the Mannix Alarm system.  Everything else is great except for the door trigger.  I can't use the Dome light because it has a delay and ends up making the alarm set off about a half hour after setting it.
jdiebolt 
Member - Posts: 4
Member spacespace
Joined: May 16, 2005
Location: United States
Posted: May 17, 2005 at 2:29 PM / IP Logged  

So I have the Mannix with Remote Start.  From what I could see on the Internet, I am supposed to use the 555F bypass module however the car does not seem to recognize it.  Do you have any other suggestions or should I just go to the Universal version that requires a PATS keys to be hidden in the module itself.

Also, my alarm take negative input for Door Open Sensing.  As others have described, the Mustang has a delay on the dome light, so it does not work well for this purpose.  That said, the Door triggers themselves are Grounded when the door is closed and Open when the Door is Open.  How can I use a relay to change this to Grounded when the door is Open and Open when the door is closed?

Uniqueauto 
Copper - Posts: 73
Copper spacespace
Joined: January 04, 2005
Location: United States
Posted: May 17, 2005 at 3:07 PM / IP Logged  
Well, you can always use a 556u. You alarm should have a positive door trigger input (usually purple), If not then use a relay to reverse the polarity.
Installer/Owner
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Wires are my Best Friends

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