Question"my wifes factory alarm is her car arms itself randomly evan while driving when it gets set off while driving it causes the car to run very badly im trying to find a way to remove the alarm from the car but it seems to be wired through the pcm and not to mention runs through a good part of the rest of the car i.e ignition if you could point me in the right direction i would be very appreacitaive"
AnswerHi Michael,
I haven't heard of this type of failure heretofor. It would be useful to watch the theft alarm light on the dash (which blinks while it is arming,etc.) when she sets the alarm in the normal fashion and then again compare that to when she gets in the car and locks the doors to drive it, etc. to see if it is arming by itself under those conditions. It may be that if she doesn't use the electric door lock feature but rather uses the mechanical push button to secure the driver's door when she has entered the car, and similarly when she exits the car (which is the way to by-pass the alarm when you leave the car) that it will not self-arm.
Probably the alarm occurs due to body flexing when in motion because there are push buttons that detect when the doors are slightly ajar which sets off the alarm. So another solution might be to set the alarm and then try to open the doors and find one that is set off with very slight pulling. Then tighten the latch plate on the door frame to more securely hold that door tightly against the frame. There is a self-locking feature that locks the doors when you reach 15 mph and that feature may also be what is causing the falter, rather than the alarm system. So try tightening all the door latch plates in-board a bit to better secure the doors might end this problem.
There is a self-diagnostic test but it requires the intermediation of the Chrysler fault code reader at a dealership. That would probably only tell you which sensor is mal-adjusted if it found the problem at all.
The system is integrated into the body control module such as to make it difficult to simple remove it (and of course that bcm communicates to the pcm which causes the engine to falter).
So I would aim toward not using the alarm by not using the power locks or the remote entry fob if you also have that. If you treat the lock system in the old-fashioned way, push button mechanical locks only, you may get around this problem at the least cost.
Please let me know if you learn something interesting that I could pass along to other owners.
Roland
