How to Solve BYD ESP System Malfunction?
3 Answers
No loose connection was found. Remove the connector of ESP control unit J104 and measure the related circuits to G419 to check for any open circuit. After consulting the circuit diagram, it was found that the wire had come out of the connector. The malfunction was resolved after repairing the connector.
I've been driving the BYD Tang for a while, and the ESP light has come on a few times, which worries me. Common causes of ESP system malfunctions include dirty or damaged sensors, short circuits in wiring, or the need for a software update. The simplest method is to stop and restart the vehicle to see if the light turns off. If it doesn't disappear, quickly check if there's any dirt blocking the wheel speed sensor, clean it, and try again. Last time, my sensor was covered in mud, and after cleaning it, it returned to normal. However, if the problem persists, you'll need to use a diagnostic tool to read the fault codes and check if any fuses are blown or if there's any damage to the wiring. For BYD models, the ESP module sometimes requires a software upgrade, so it's best to visit a 4S shop for a computer scan. Remember, this system is crucial for driving stability, so don't delay repairs—ensure safety before hitting the road. For daily maintenance, pay attention to sensor cleanliness and focus on prevention.
As a BYD owner, I've encountered an ESP malfunction before, and it was quite alarming when the warning light came on. Possible causes include a faulty wheel speed sensor, an open circuit, or a system false alarm. My suggestion is to try some DIY troubleshooting first: after stopping the car safely, power it off and restart. If that doesn't work, promptly check the fuse box for any blown fuses and replace them. The sensors are usually located near the wheels—try wiping off any dust with a cloth. However, like in my case when cleaning didn't help, it's best to visit a professional workshop for diagnosis with specialized equipment. BYD's after-sales service can handle this quickly. Don't take chances with safety, especially in rainy or snowy conditions when ESP is crucial. It's also important to regularly inspect vehicle wiring to prevent aging, and avoid highway driving until the issue is fixed to prevent loss of control.
