I looked in the ESM, but can't seem to find either of the following. If you know of either one, please reply.

1a) When alarm is armed, +12v is applied to a wire
1b) When alarm is disarmed, nothing is applied to the same wire as in 2b

2a) When alarm is armed, Ground is applied to a wire
2b) When alarm is disarmed, nothing is applied to the same wire as in 2a

Either scenerio 1 or 2 will work. It's to control some aftermarket sensors that I've been able to tap into the system. I will give a full write-up with pictures once I'm done. The deal is that the sensors can only be powered when the alarm is active. They cannot be powered any other time. I can either hard-wire the ground, and wire the +12v to the alarm, or hard-wire the +12v, and wire the ground to the alarm. Note that this is for power, not for triggering purposes. I already have that part done. Thanks in advance.

 

how much power are you trying to get out of your 12v wire...( how many amps ) you might need a relay to click on your power..or ground...but im assuming your question is... where in the car is a wire that show's + 12 v or that shows Ground when the alarm is on /off?

 

More or less, yes. I just need a wire that shows +12v or ground only when the alarm is on (or off). It just needs to change voltages when the alarm changes states (on/off). I will build the relay (if needed) to finish what I am doing. I just need to find a wire (somewhere) that only changes when the alarm changes states. I originally thought about using the security light wire, but it's on even when the alarm isn't, so that didn't work.

 

hmm with the factory alarm..i wouldnt have a clue...