2008 civic alarm issue

its either the wrong wire or he got the disarm/arm reversed and its arming during remote start.

Sorry for the delayed response. I was moving. It is the brown wire coming from the driver door located behind the fuse box. Multimeter is set for DC voltage, I get 12V at rest, no voltage or ground whatever you want to call it, when the key is turned in the driver door cylinder to unlock. I can disable the factory alarm by unlocking with the factory keypad, but the range sucks and I can't unlock the car from my front door, to remote start, and then relock the doors. R/S keypad has great distance, but doesnt help by waking the whole house from the factory alarm. Can I permanently ground the factory arm wire so it doesnt arm again? And obviously I can put in a switch to disable this when taking the car for service.

It was a pain in the butt to do this (me not being the smallest person around) but I tried running the ground to the factory disarm, hitting the RS, and still got the horn to go nuts. I spoke to honda yesterday, they said the wire I am using (confirmed by 2 techs) was the proper wire. They dont know why this is happening

sounds like you need a data interface. and will the remote start actually start ? i didnt read whether or not it actually cranked the vehicle. most of the new interfaces shutdown the factory alarm AND allow for remote starting, ummm if this doesnt work it maybe possible you didnt ground your wire good enough before touching the fad wire. (lord knows i've fought my share of battles with ungrounded meters and test lights)the best part of a job is seeing the bumper get smaller over the horizon

Yep, remote start works fine. I took the car to the dealer to check out the issue. They said there could be a factory issue with the standard 'security' system. The tech was actually pretty intelligent and said there have been some issues lately with this. He suggested putting an inline switch on the factory arm wire to keep it from arming when not in for service.