The electronic power control warning light is an automobile warning indicator that indicates a problem with a vehicle's throttle system, but it can indicate other problems. When this light comes on the vehicle’s computer system must be scanned.
The EPC indicator is a standard in Volkswagen and Audi models. These vehicles have drive-by-wire systems that are computer-controlled. When a fault exists with the throttle pedal, throttle body, traction control and cruise control, the EPC warning light illuminates. In many instances, the vehicle’s throttle may be limited when this light is illuminated in order to protect the engine. Often, there is just enough power enough to get the vehicle to a service facility for repairs.