What does it mean when the EPS light in the car is on?
2 Answers
When the EPS light in the car is on, it indicates a possible sensor failure or motor damage. EPS stands for the Electronic Power Steering system, which is essentially the computer board for the car's steering wheel. If the EPS warning light illuminates, it is recommended to stop driving immediately and seek prompt service at the nearest 4S dealership. Although the specific components of the EPS system may vary between different car models, the general structure remains similar. The working principle is as follows: 1. When the driver turns the steering wheel, the torque sensor records the movement and converts it into a voltage signal, which is then transmitted to the vehicle's control unit. 2. Based on the voltage signal received from the sensor, the vehicle's computer controls the motor to rotate, thereby providing the driver with assisted steering power.
I've been driving for 20 years and encountered the EPS warning light coming on several times, usually indicating an issue with the electric power steering system. The steering wheel becomes noticeably heavier, making turns more strenuous, especially during low-speed maneuvers or parking. Common causes include torque sensor failure (inaccurate signals due to wear), damaged control unit (burnt internal computer module), low battery voltage or alternator failure (system shutdown due to unstable voltage), loose/aged wiring connections causing short circuits, or a faulty steering motor unable to provide assistance. Don't delay - when the light appears, promptly visit a repair shop to diagnose trouble codes using a scanner. Prolonged driving in this condition damages the vehicle and increases accident risks. Remember: safety first!
