What is the reason for the alarm continuously sounding?
3 Answers
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.
I've been running a repair shop for years and have encountered many cases of car alarms going off frequently. The most common cause is environmental false triggers, like strong winds shaking the car body or small animals brushing against the undercarriage sensors. Another frequent issue is internal system failures, such as aging relays or poor wiring connections causing false alarms, especially in humid weather. A weak or aging battery can also trigger false alarms. Solutions: Try locking and unlocking the car with the key or remote once, as this can sometimes reset the system. If that doesn't work, pull the alarm fuse to temporarily stop the noise, but make sure to visit a professional repair shop promptly for a thorough inspection to avoid draining the battery or worse, causing circuit damage.
I have an old car whose alarm keeps going off randomly, causing complaints from the neighbors. It's mostly due to my own carelessness, like pressing the remote control incorrectly or not removing the key properly, triggering the anti-theft system. Low battery voltage is also a culprit, especially in winter, leading to repeated false alarms. It's recommended to first check if the doors and trunk are tightly closed, then test the battery condition; if that doesn't work, use the mechanical key to manually reset the circuit once. During routine maintenance, clean the sensor probes to avoid dust interference. Safety comes first—if it needs repair, get it fixed promptly. Don't let minor issues affect the peace of the community.
