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What Alarm Can Be Triggered By 2002 GM Truck Keyless Entry Fob?


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rt jam 
Member - Posts: 14
Member spacespace
Joined: February 28, 2010
Location: Ontario, Canada
Posted: April 13, 2024 at 10:56 AM / IP Logged Link to Post Post Reply Quote rt jam
I want my keyless entry to turn an alarm on and off. What brand and model alarm can do this?
audiokid1 
Copper - Posts: 142
Copper spacespace
Joined: March 17, 2003
Location: United States
Posted: April 19, 2024 at 9:10 PM / IP Logged Link to Post Post Reply Quote audiokid1
VOXXSEC or PRO9233Z
rt jam 
Member - Posts: 14
Member spacespace
Joined: February 28, 2010
Location: Ontario, Canada
Posted: April 22, 2024 at 7:52 PM / IP Logged Link to Post Post Reply Quote rt jam
Thanks Audiokid. How does it know to arm or disarm?
audiokid1 
Copper - Posts: 142
Copper spacespace
Joined: March 17, 2003
Location: United States
Posted: April 22, 2024 at 8:45 PM / IP Logged Link to Post Post Reply Quote audiokid1
The systems tie into 3 wire connections on the truck for this.
Driver Door Lock Motor
Driver Door Unlock Motor
Passenger Door Unlock Motor
If the alarm sees a 12V pulse on the door lock motor wire then it knows to arm.
If the alarm sees a 12V pulse on only the driver door unlock motor wire (driver priority unlock from OEM fob) then it knows to disarm.
If the alarm sees a 12V pulse on both the driver door and passenger door unlock motors at the same time (as if someone reached through the window and pressed the power unlock switch) then it will not disarm.

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