My car alarm (2007 Mercury Mariner) has been going off uncontrollably at all hours and my neighbors are furious. I cannot afford to take it to the dealer, who wants hundreds of dollars to even look at it. I don't have the time (or money) to try to replace all the sensors. I don't want the car alarm at all. If there was a way to just remove it, I would do it in a heartbeat.
Can the OBD port be used to disable the car alarm? Can it be used to at least see which sensors are misfiring?