Why does my car alarm go off when I reconnect the battery?
Tom: Actually, it’s your alarm system that’s going off. When the battery died, the car’s factoryinstalled alarm system assumed that someone was tampering with the battery or had disconnected it in order to break into the car. Ray: So when you hook up the jumper cables, it’s like you’re replacing the battery.
Why does my alarm go off when the power comes back on?
When power is restored, the system goes back to using AC power and charges the battery again. These batteries cannot operate indefinitely. If the battery becomes fully depleted and there is a power outage, the alarm panels will stop functioning and the alarm may begin to whine until the battery has no charge at all.
Can a car alarm be deactivated after installation?
If your car alarm is the aftermarket type, installed after the car factory, you can often deactivate the car alarm with wirings. This does require some electrical skills though, and you have to find some information about the car alarm type. Locate the installation instructions and carry them out backward.
Why does my car alarm keep going off at night?
A bad car battery or low battery charge is a widespread problem for a car alarm that goes off during the night. If you hear the car alarm going off at night and the car battery is dead in the morning, the car battery may be bad.
Can a key fob cause a car alarm to go off?
The key fob, also known as a car remote key, is a device which is used to lock/unlock your car doors and even start the engine with just a push of a button. Since the key fob also has controls linked with the car alarm system, a malfunctioning or faulty key fob can send an incorrect signal which may trigger the car’s alarm.
What to do if your car alarm won’t quit?
Most factory alarms do not come equipped with a backup battery. If you are unable to locate the backup battery, it will eventually die if disconnected from the primary battery for too long. Wait for the computer to reset. Depending on the vehicle, the amount of time required for the computer to reset can vary widely.