Is It Normal for the Steering Gear of BYD Tang to Malfunction?
2 Answers
The malfunction of the steering gear in the BYD Tang is caused by loose or detached connectors. Below is a detailed introduction regarding the steering gear malfunction in the BYD Tang: The manifestations of the steering gear malfunction in the BYD Tang include: difficulty in the steering wheel returning to position; shaking or deviation of the steering direction; uneven steering wheel resistance; oil leakage from the steering gear; and abnormal noises from the steering gear. The steering gear amplifies the force transmitted from the steering wheel to the steering mechanism and changes the direction of force transmission. It can be classified into various types based on structural design. Taking the BYD Tang 2021 2.0T Automatic Flagship model as an example, its body dimensions are 4870mm in length, 1940mm in width, and 1720mm in height, with a wheelbase of 2820mm. It features front-wheel drive, a front suspension type of MacPherson independent suspension, and a rear suspension type of multi-link independent suspension. Solution: First, check whether the connectors are loose or detached, especially the motor and ECU connectors. Upon inspection, the connectors are found to be normal and free of faults. Then, use VDS1000 to check for any upgrade or update items related to the motor. After scanning, three fault codes are found in the electronic steering system: torque sensor fault; steering angle signal fault; and motor overcurrent fault. Analyze the common points of these three faults. From the third fault, it appears to be a poor grounding issue. By consulting the circuit diagram, it is found that these three faults intersect. Upon locating the motor grounding point, it is discovered that the presence of electrocoating paint on the screw causes poor grounding. After grinding and reassembling for a test drive, the fault persists. Reading the fault codes again reveals that the motor overcurrent fault still exists. It is initially analyzed as a motor fault, but upon rechecking the grounding point, it is found that there is a protrusion on the welding point of the grounding point, and only a single contact point on the attachment surface of the wire clip, indicating poor grounding.
I also experienced a steering gear malfunction while driving my BYD Tang. Suddenly, the steering wheel became abnormally heavy, and I almost scraped the curb while turning. It happened on a rainy day, possibly due to moisture causing a malfunction in the electric power steering system. I immediately pulled over and contacted after-sales service. The technician inspected it and replaced the steering sensor module, after which everything returned to normal. Such a malfunction is definitely not normal—any issue with a car's steering gear poses a risk of loss of control and can easily lead to accidents. I recommend BYD Tang owners perform regular maintenance, checking the steering system's wiring and connectors, especially during humid seasons. Safety comes first—don’t let small issues turn into big problems.
