Volkswagen Jetta EPC light illuminated on dashboard on Volkswagen Jetta

Some Volkswagen Jetta owners report experiencing issues when the EPC (Electronic Power Control) light illuminates on the dashboard, indicating potential problems with the engine's electronic control system. Common causes include faulty sensors in the engine, issues with the engine's computer, and problems with the vehicle's throttle system, which encompasses the throttle pedal, throttle body, traction control, and cruise control unit. Additionally, malfunctioning brake light switches may lead to miscommunication with the electronic control unit. To accurately diagnose the specific issue triggering the EPC light, owners are advised to scan their car's computer for precise identification of the problem, allowing for effective resolution.