What problems will occur if the steering angle sensor is broken?

[CharlesMarie]

The steering angle sensor being broken will cause the car's steering wheel position light to stay on and cannot be turned off. The car's steering angle sensor mainly measures the rotation angle of the steering wheel when the car is turning. It is generally installed in the steering column below the steering wheel and connected to the PCM via the CAN bus. If the steering angle sensor is broken, the following problems will occur: After detecting the car's steering signal, the steering angle sensor sends the correct steering command to the car's electronic control unit, providing a basis for the car's steering range. The car's electronic control unit determines the lateral force during steering based on the signals from the speed sensor and the steering wheel angle sensor, controlling the body's tilt to ensure the car follows the driver's steering intention. If the steering angle sensor malfunctions, the driver's judgment of the lateral force during steering and the control of the body's tilt will be inaccurate. Systems such as the ESP electronic stability program, active suspension system, EPS electronic speed-sensitive power steering, and adaptive headlights all require the assistance of the steering wheel angle sensor. When the steering wheel angle sensor fails or is damaged, these systems will not function properly. Moreover, it will affect the car's steering, leading to issues such as incorrect direction, shaking, deviation, and unresponsiveness, posing safety hazards during driving. If the steering angle sensor fails, it should be repaired or replaced promptly to ensure normal steering and driving safety.

[DiCalvin]

I've been driving for over a decade and was completely caught off guard when the steering angle sensor failed. That day, the warning light suddenly flashed, the steering wheel became unusually heavy, requiring much more effort to turn, and the car felt shaky and unstable during turns—especially on mountain roads where it nearly caused an accident. Later, the mechanic explained that this sensor monitors the steering wheel angle, and if it malfunctions, the entire electronic stability system fails, potentially affecting the ABS as well, making the car prone to skidding or losing control, especially on slippery roads. The repair cost me over 500 yuan, but it prevented greater danger. My advice: always pay attention to warning lights while driving, and get them checked as soon as they appear—don't risk major issues for minor savings. Safety comes first.

[LaSophie]

As a car enthusiast, I always enjoy studying vehicle components. A faulty steering angle sensor is no small matter—it can directly cause the power steering to fail, making the steering wheel feel as heavy as a block of lead. It may also trigger the ESP warning light, disabling the stability control function, causing the car to wobble and easily drift out of the lane, especially during high-speed turns. I once encountered this issue during a test drive; a quick check for loose connectors didn't solve it, and I eventually had to visit a professional shop to replace the part. Ignoring the repair significantly increases long-term driving risks, such as potential skidding in rainy conditions. The repair cost is usually low, but delaying it can lead to cascading issues in other systems.

[VanEvelyn]

I've been driving for half my life, and a faulty steering angle sensor once gave me a hard time. The steering wheel suddenly became heavy, requiring extra effort to turn, and the car felt unstable when cornering, like a drunkard. After the warning light came on, the electronic stability system also went haywire, nearly causing an accident on icy roads. Only after repairs did I learn that a faulty part like this can affect overall steering precision and even cause the ABS to fail. The lesson I learned: when the light comes on, don't drive far—stop and call a tow truck. Repairs are quick, so don't delay.

[DelCarlos]

I just got my driver's license not long ago, and last time the steering angle sensor malfunction really scared me. The steering wheel suddenly became extremely heavy and hard to turn, the car seemed unresponsive during turns, and the warning light on the dashboard kept flashing. After checking online, I learned that it measures the steering angle, and once it fails, the electronic stability system stops working, which could lead to loss of control—especially dangerous during sharp turns or on wet roads. I immediately went to the 4S shop. The mechanic said this is a common issue but shouldn't be ignored, and I needed to replace the part while also checking for aged wiring. As a new driver, I suggest paying close attention to vehicle warning alerts to avoid safety regrets later.