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2006 Chevrolet Trailblazer, Alarm Disarm Wire


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santon 
Member - Posts: 1
Member spacespace
Joined: June 24, 2022
Posted: June 24, 2022 at 9:53 AM / IP Logged Link to Post Post Reply Quote santon
Hello,
When the driver's door is unlocked, the lt green alarm disarm wire (or keyswitch signal) is at ground potential. The contact pair inside the cylinder switch simply connects it to the ground. However, what potential is present at this wire when the door is locked? 12V, 5V, or is this wire just left floated?
Thanks,
Anton.
catback 
Silver - Posts: 697
Silver spacespace
Joined: August 13, 2002
Location: Canada
Posted: June 24, 2022 at 8:29 PM / IP Logged Link to Post Post Reply Quote catback
That's a very specific question to which I'd say grab a multi-meter and measure it. From an alarm installer perspective, it doesn't matter what the voltage is when it's not grounded - the ground path is all we care about, whether we ground it with an installed aftermarket device or detect it being grounded during normal OEM function (door being unlocked with key).

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