Electronic Power Control Warning Lamp
WARNING: This page is about a different car, the 2015 Volkswagen Passat. However, it is still accessible from the selected car via links, so may be relevant.
The engine control module (ECM) monitors electronic power control (EPC) components when the ignition is switched on.
If a malfunction is recognized in the EPC system, the ECM switches on the EPC warning lamp, which is located in the instrument cluster, and an entry is stored in the DTC memory of the ECM.