What does an EPC displayed on Jetta dashboard mean?

EPC=ElectronicPowerControl (full name of engine electronic stability system), many people also call it electronic throttle. ?

General vehicles have signs of EPC. After the key door is opened, the vehicle starts self-inspection, and the EPC indicator light will light up for a few seconds and then go out. If the vehicle does not go out after starting, it means that the mechanical and electronic system of the vehicle has failed.

There are several possibilities for EPC light to light up:

1. The throttle valve is dirty and should be cleaned.

2. The brake light is not on, so it is necessary to check the brake switch and wiring.

3. Due to the oil problem, the EPC fault light will also light up.

Extended data:

The role of electronic throttle:

In order to improve the safety, power, ride comfort and economy of automobiles and reduce emission pollution, all major automobile manufacturers in the world have introduced various electronic throttles with good control characteristics and their corresponding electronic control systems to form electronic throttle control systems.

1. Using electronic throttle control system to accurately control throttle opening can not only improve fuel economy, but also reduce emissions.

2. The system responds quickly and can obtain satisfactory control performance.

3. It can realize the integration of idle speed control, cruise control and vehicle stability control, and simplify the structure of the control system.

References:

1, Baidu Encyclopedia-Engine Electronic Power Control System

2. Baidu Encyclopedia-Electronic Throttle