What to Do When BYD Qin's ESP System Fails to Start?
4 Answers
BYD's ESP system failure is caused by throttle malfunction. It is recommended to check for any foreign objects inside the throttle, ensure the connector is functioning properly, and use a computer to read the throttle opening to verify if it's normal. There are two fault scenarios: 1. ESP light stays on: If the ESP warning light on the dashboard remains illuminated after starting the vehicle, it may indicate an ESP system malfunction. 2. ESP light suddenly turns on: When the ESP light illuminates during driving, reduce speed immediately, avoid excessive steering and sharp turns, and find the nearest 4S store as soon as possible to diagnose the vehicle fault.
I also encountered an ESP failure that prevented my BYD Qin from starting, which gave me a headache. But don't panic—first, check if the battery is low on power and try charging it. If that doesn't work, reset the system by holding down the central control start button for about ten seconds; this usually fixes it. Also, check the tire pressure and brake lights, as the ESP is connected to these sensors, and issues here can trigger faults. If the problem persists, it might be due to poor wiring connections or a software error. In that case, back up your data and visit a 4S shop to reflash the system. For regular maintenance, remember to check the onboard voltmeter and avoid modifying the electrical system to prevent recurrence. Last time, I had to tow it in for repairs, which cost me a few hundred bucks—safety first, don’t force-start the car to avoid accidents.
As a novice driver, I encountered a situation where my BYD Qin couldn't start due to an ESP malfunction, and I panicked at first. Later, I figured out some solutions: first, make sure the key fob has enough battery, sit in the car, press the brake pedal firmly, and then press the start button—sometimes it's just a minor glitch. Next, check if any warning lights are illuminated on the dashboard, such as a brake system fault, which might affect the ESP. If that doesn’t work, try disconnecting the negative terminal of the battery for a few minutes and then reconnecting it to reset the computer. Don’t overlook weather factors either—cold winter temperatures can cause electronic components to malfunction, so warm up the car before trying again. Since then, I’ve been checking my brake system weekly to prevent issues from worsening. If the warning persists, it’s best to visit a 4S professional for diagnosis, as they can read fault codes more accurately.
I've been driving my Qin for several years. ESP failure preventing startup is commonly caused by a weak battery or dirty sensors. First, check if the battery voltage is below 12 volts, charge it and try again. If that doesn't work, simply clean the dust off the wheel speed sensors - these are things you can do at home. Don't delay and let small issues become big problems, get it checked by a professional promptly.
