Where is the kill switch located on a 1997 dodge avenger es V6 if alarm system factory that came with car?

There isn't a readily accessible "kill switch" in the traditional sense on a 1997 Dodge Avenger ES, even if it had a factory alarm system. Factory alarm systems disable the car's starting system, not by interrupting power to the engine directly with a switch, but through the car's electrical system.

If you're looking for a way to disable the engine, you'd need to disconnect the battery's negative terminal (this is a temporary measure and shouldn't be used as a permanent anti-theft device). Any other method would require significant knowledge of the car's electrical system and potentially damage the vehicle.

If you're experiencing issues with your car's alarm system or ignition, it's best to consult a qualified mechanic or locksmith. Tampering with your car's electrical system can lead to serious problems.