Alarm/Antitheft goes off unexpectedly.
 

So, i've owned my 7 since 99'. I've always known it had an alarm, however, i've never used it, never knew how to turn it on, and i've never had it go off. So, after all these years, it chooses to go off. LOL.
I disconnected the battery to shut it off short term, as I have no idea how to turn it off. I have a normal key. No electronics and I don't have an alarm remote either.
So, any input from people that use their stock alarms, or maybe it's called anti theft, would be appreciated. Thanks!

Mine started doing this too, my stock alarm is fighting my aftermarket viper alarm with remote door locks (which i love) but some times when i hit the unlock the viper disarms but the stock alarm goes off and headlights start flipping up however it goes off instantly when i put the key in the door lock and turn it counter clockwise. i believe the stock alarm is thinking someone is opening the door from the inside when i hit the unlock but it only does it some times so idk im gonna try cleaning and lubing my door locks as they seem to be sticking.

mine does it all the time , randomly it will go off I have to disconnect hte battery terminal for 30 seconds then i'm good for a few more days LOL

Oh man, so i'm not alone on this. I gotta find a permanent fix Tem, because i'll go crazy if it happens every few days. If it does again when I reconnect the battery, i'll try putting the key in the lock again. and turning it counter clockwise. Thanks for the tip Ninja.

Yeah i got to figure this out to, not gonna lie it scares me sometimes because after my viper alarm disarms it will take a second or two and the stock one goes off. definitely try the key in the door it instantly goes off for me when i turn it to the left (with the door closed but idk if that would make a difference never tried it open) but you should try turning the key both ways and see if it works. its alot better than going to the battery, you can also pull the horn relay easily.

Oh i'm familiar with the horn relay. I've had to pull it before. LOL. I had an exposed wire in my harness over the wheel well, and that resulted in my horn just going off randomly and staying on. Real awesome in traffic....

mine would go off randomly as well, then it just stop. i noticed that it would go off if i left the hood open.

yes it would mine as well I noticed ,


And thankfully I have my battery in my passenger side bin , so its just one butterfly nut away from disconnecting it when needed . first time it happened I actualy drove liek that for about 5 miles at night . from a friends out it was somewaht awkward . but I discovered if i Disconnected the battery it would stop .

Issues with the CPU2 normally causes this. Same thing happened with mine. Could be something else but that is a good place to start

Now i've prettymuch build my car from scratch .. But wahts is CPU2?

Well, I just pulled a check engine light and the car was stumbling. Maybe the light will tell me something..maybe not. Either way, i'll let you know what I find when I get to into it. Ah the joy of project cars..

Get a Power FC , no more CEL .. Ignorance is bliss

I can't. I went to the dark side. 5.7LS1. I'll have to tackle this as it's obviously within the still remaining electrical system or maybe even this cpu2 (if it still is there) that someone mentioned.

Drove it today, and the check engine light went off, and it's driving normal. I kind of wish it wasn't so when I have it looked at they're be able see something. Having it looked at next Friday. I'll let people know what I find.