What is the reason for the alarm continuously sounding?

[DeRuth]

Alarm continuously sounding may be due to a fault in the main control door ground wire, commonly known as a door switch fault. Below is relevant information about car alarms: Introduction: The car anti-theft alarm is a multifunctional product that not only serves an anti-theft alarm function but also can remotely open the trunk, remotely open/close car doors, remotely open/close windows, remotely start the engine, and remotely lock the engine. Ground Wire: Modern cars use the battery connected to the metal part of the car body, so the negative wire in a car is usually called the ground wire. The ground wire plays an important role in the car's electrical circuit, so the condition of the ground wire is key to the proper functioning of the car's electrical components.