What Problems Will Occur if the Steering Angle Sensor is Broken?
2 Answers
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 steering angle sensor mainly measures the rotation angle of the steering wheel when the car is turning. This steering wheel angle sensor uses a multi-turn absolute angle output method, which can detect the absolute angle when the steering wheel rotates multiple turns. It is installed in the steering column below the steering wheel and is generally connected to the PCM via the CAN bus. If the steering angle sensor is broken, the following problems may occur: After detecting the car's steering signal, the steering angle sensor sends the correct steering command to the car's electronic control unit (ECU), providing a basis for the car's steering amplitude. The ECU determines the lateral force during car steering based on the vehicle speed sensor signal and the steering wheel angle sensor signal to control the body's tilt, ensuring 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, and it will also affect the car's steering, leading to issues such as misdirection, 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 car steering and driving safety.
If the steering angle sensor fails, it can cause a multitude of problems. I often encounter this issue during repairs, where the power steering may completely fail, making the steering wheel extremely heavy and turning it feels as strenuous as moving a boulder. Warning lights on the dashboard, such as the EPS or ESC light, will illuminate. Even worse, the electronic stability system becomes inoperative, making the vehicle prone to skidding during turns, which is particularly dangerous on slippery roads. I once worked on a collision-damaged car where the driver lost control due to a faulty sensor. After the repair, the car drove much smoother. I recommend addressing this issue promptly without delay, as neglecting it not only compromises safety but also increases the risk of damaging other components. Always pay attention to dashboard warnings and address any issues early on.
