I have an 01 mercury cougar with both the stock alarm and an aftermarket alarm. I don‘t know the what kind the aftermarket one is all I know is it has an LED in the car and is integrated with the ford alarm since I have looked everywhere in the car and all I see is ford security. Anyways the stock alarm is still working perfect but the aftermarket one isn‘t working. The LED keeps flashing 2 flashes really fast and none of the sensors work. The tilt sensor, shock sensor and unlocking the door with the key no longer set the alarm off. Please if someone could point me in the right direction that would be great. Sorry I don‘t know the name of the alarm system.
I can't think of a good reason for having two separate alarm systems on any car. Unless you have a specific requirement for an additional alarm system, I would remove the after market alarm and be done with the problem.
it might be a couple of things ! it could be a bad idle air control sensor or the throttle body needs to be cleaned out ! get some throttle body cleaner and spray up inside the throttle body to get rid of the carbon !
