What does it mean when the EPS light comes on in a car?
3 Answers
When the EPS light comes on in a car, it indicates a possible fault in the electric power steering system. Steering system faults may include sensor failure, steering gear malfunction, or power steering fluid leakage. An EPS failure can result in the car being unable to drive normally or experiencing abnormal steering, and it is necessary to promptly visit the nearest 4S dealership for repairs. EPS stands for Electric Power Steering, which is the development direction of automotive steering systems. This system provides steering assistance directly through an electric power motor, saving energy while also protecting the environment. With these advantages, electric power steering systems, as a new steering technology, pose a significant challenge to the well-known hydraulic steering systems.
The EPS light on the car is on, which indicates a malfunction in the power steering system. With over 20 years of driving experience, common causes include failure of the steering angle sensor, burnt-out motor, or loose wiring. Power steering is designed to help you turn the steering wheel effortlessly. If the light comes on, the steering wheel may suddenly become very heavy and difficult to control, making driving particularly unsafe. I've encountered this situation before due to a moisture-damaged sensor, which made steering laborious, so I quickly took the car to a repair shop for inspection. It's recommended that you immediately park the car in a safe place and avoid continuing to drive. Contact a professional mechanic to use a diagnostic tool to read the fault codes, and avoid long-distance or high-speed driving until the issue is resolved. During regular maintenance, remind the mechanic to inspect the power steering system components—prevention is the most worry-free approach.
My previous car often had the EPS warning light come on, which indicated an abnormality in the electronic power steering system, such as a software conflict in the controller or insufficient power supply to the motor. When the light was on, the steering wheel would become noticeably heavier, especially making turns difficult at low speeds. I remember one time, the light came on due to unstable battery voltage, and the car had trouble starting. It's recommended to regularly check the battery's health and test its voltage; if the light comes on, don't force driving and immediately take the car to a repair shop for inspection, replacing related parts if necessary. Nowadays, EPS systems are standard in new cars with smarter designs, but ignoring faults can lead to bigger problems, such as losing control on highways. Safety should always come first.
