How to Fix the EPS Light On by Yourself?
2 Answers
Since the ESP (Electronic Stability Program) involves numerous components and sensors, most of which are directly controlled by the ECU, and without a professional fault diagnostic tool, it is impossible to accurately determine the cause of the fault merely through a constantly illuminated ESP warning light. Therefore, self-repair is not feasible, and it is more practical to directly visit a 4S shop. Below is additional information: 1. Composition: The ESP system generally includes four major functions: EBD (Electronic Brakeforce Distribution), ABS (Anti-lock Braking System), TCS (Traction Control System), and VDC (Vehicle Dynamic Control). 2. Function: ESP, or Electronic Stability Program, is primarily designed to maximize vehicle handling performance while effectively preventing loss of control when the vehicle reaches its dynamic limits. It plays an irreplaceable role in enhancing driving safety.
That day when washing the car, I noticed the EPS light was on, and immediately recalled what the tire-changing guy taught me last time: first crouch down to check if the tire pressure is significantly uneven—low pressure can trigger a computer error. I casually opened the driver’s side fuse box, looked for the 10A small fuse labeled EPS, pulled it out, and checked against the light to see if it was blown. If the steering wheel suddenly feels heavier, don’t force it—quickly turn on the hazard lights and pull over. This light is most likely due to an issue with the angle sensor or motor module. For an average person, replacing a fuse is the limit; if it involves the electrical system, it’s best to take it to a repair shop for computer diagnostics.
