Why does the Besturn B50's alarm horn keep sounding?

[LillianLynn]

Besturn B50's alarm horn frequently sounding may be caused by the following reasons: 1. Horn relay sticking causing continuous horn sound: This fault is easy to identify. Just locate the horn relay and when the horn sounds, gently tap the relay with a screwdriver or other tool. If the horn stops, simply replace the relay. 2. Internal sticking or short circuit in the horn switch: This can cause the horn to sound continuously. For this fault, you need to disconnect the horn switch wires to check if the switch is the cause. If it's caused by wiring issues (such as the horn wire connecting to the live wire), it will also result in continuous sounding.

[SanLondon]

I've encountered this issue many times before, especially with models like the Besturn B50, where the alarm horn keeps going off for no reason, which is really annoying. I've found that the most common cause is a faulty door lock sensor, particularly the rear door or trunk sensors failing to detect the closed state. The system then mistakenly thinks there's unauthorized entry and triggers the alarm automatically. Another possible reason could be unstable battery voltage causing the anti-theft system to malfunction, or aging wiring with short circuits and loose connections. Whenever this happens, I first check all doors and the trunk to make sure they're properly closed, then inspect the battery for corrosion or loose terminals. If that doesn't work, it's necessary to have a professional check the sensors or replace faulty components. Otherwise, random alarm triggers not only disturb the neighbors but could also drain the battery and affect driving safety. Don't ignore small issues - addressing them early saves a lot of hassle.

[CassandraAnn]

My Besturn B50 had the same issue before. The alarm horn would suddenly go off in the middle of the night or while driving, which really startled me. Once I looked into it and found that an improperly closed trunk lid is a common problem – rusty latches or loose springs can cause sensor errors. Also, a dead key fob battery can confuse the anti-theft system. I learned to retighten the trunk lock and replace the remote battery, which solved the problem. If that doesn't work, try disconnecting the car battery for a few minutes to reset the system – it's a simple but effective trick. Remember to regularly clean the locks to prevent dust buildup. False alarms not only disturb others but could also distract you on the highway. So if you encounter similar issues, act quickly to troubleshoot or visit a repair shop.

[DiTyler]

I know that false alarms from the horn are quite common in the Besturn B50. It's usually a minor glitch in the anti-theft system, such as false signals from sensors or a stuck relay that fails to reset. Another common cause is poor contact in the door handle switch, which tricks the system into thinking the door is left open. Additionally, aging wiring combined with moisture or vibration can lead to short circuits. I would recommend checking all door lock components and cleaning the sensor contacts with a damp cloth. If the issue persists, it's best to visit a professional shop for system parameter testing with specialized equipment. Simple DIY checks can help avoid major repairs.