What to Do When the EPC Light Comes On and Acceleration is Weak?

[Vanessa]

When the EPC light illuminates in a Volkswagen, it indicates an electronic throttle fault, meaning the throttle is either too dirty or malfunctioning. The first step is to have the throttle cleaned at a repair shop. The EPC system consists of various sensors, controllers, and other components. When a sensor fails or detects an abnormal condition, the control system takes appropriate actions based on predefined protocols. Below is an introduction to the EPC system: 1. ESP includes functionalities such as Electronic Brake-force Distribution (EBD), Anti-lock Braking System (ABS), Traction Control System (TCS), and Vehicle Dynamic Control (VDC). 2. Under specific road and vehicle load conditions, the maximum adhesion a wheel can provide is a fixed value. In extreme cases, the longitudinal force (along the wheel's rolling direction) and lateral force (perpendicular to the wheel's rolling direction) exhibit an inverse relationship. The electronic stability program can individually control the longitudinal braking force on each wheel, thereby influencing lateral forces and enhancing vehicle handling performance.