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

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rt jam

Member - Posts: 14

Joined: February 28, 2010

Location: Ontario, Canada

Posted: April 13, 2024 at 10:56 AM / IP Logged

I want my keyless entry to turn an alarm on and off. What brand and model alarm can do this?

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audiokid1

Copper - Posts: 142

Joined: March 17, 2003

Location: United States

Posted: April 19, 2024 at 9:10 PM / IP Logged

VOXXSEC or PRO9233Z

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rt jam

Member - Posts: 14

Joined: February 28, 2010

Location: Ontario, Canada

Posted: April 22, 2024 at 7:52 PM / IP Logged

Thanks Audiokid. How does it know to arm or disarm?

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audiokid1

Copper - Posts: 142

Joined: March 17, 2003

Location: United States

Posted: April 22, 2024 at 8:45 PM / IP Logged

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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