How to Resolve Automatic Emergency Braking System Malfunction in New Cars?
2 Answers
New car automatic emergency braking system malfunctions can be resolved as follows: wiring or poor contact issues. Use a digital multimeter to check whether the circuit voltage is normal, and look for any loose connections or wiring problems that may require circuit repair. Dirty radar sensors may cause false alarms. Inspect whether the radar sensor is dirty, such as being blocked by mud, catkins, or similar debris on the millimeter-wave radar, which prevents it from identifying the distance of obstacles ahead, leading to limited automatic emergency braking function. You can wipe it clean with a tissue or cloth, and the fault should clear once you get back in the car. Millimeter-wave radar sensor issues. Check whether the power plug of the millimeter-wave radar sensor is loose. After unplugging it, inspect the pins inside for signs of corrosion or detachment, which can cause poor contact in the millimeter-wave radar sensor, resulting in abnormal data transmission and malfunctions. If the radar sensor has an internal fault, it needs replacement. Control module unit failure. Use a computer to read the data from the control module to determine if there are any abnormalities that prevent the millimeter-wave radar and camera from functioning normally, leading to malfunctions. Replace the control module at an auto repair shop.
As someone who frequently tinkers with automotive electronics, I've found that most automatic emergency braking system failures in new cars are caused by sensors being obscured by dust or mud, or the software needing an update. The first step is to check the camera and radar areas on the windshield, gently cleaning them with a soft cloth; if the warning light remains on, try restarting the vehicle or consult the user manual to reset the system. Many vehicles can connect to a diagnostic tool via the OBD interface to read error codes, which can reveal specific issues like sensor calibration offset or loose wiring. Since it's a new car, I directly contacted the authorized dealer—they have professional tools to handle warranty-covered repairs, making it both free and hassle-free. Safety comes first—don't ignore this fault, as it may fail in an emergency. Developing a habit of regular cleaning and software updates can significantly reduce risks.
