What fault does Volkswagen sagitar epc show?

The fault light of EPC shows that the power control management system of the engine has a fault. Generally speaking, there are two possibilities for this kind of failure. First, the throttle is dirty and needs cleaning. In another case, the brake light is not on, so it is necessary to check the brake switch and wiring.

The actuator of ESP is a four-wheel braking system. Unlike vehicles without ESP, the braking system of vehicles with ESP has the function of pressure accumulation. The actuator of ESP is a braking system that can brake wheels independently. Unlike vehicles without ESP, the braking system of vehicles with ESP has the function of pressure accumulation.

Extended data:

Precautions for automobile driving:

The most obvious feature of dirty throttle is unstable acceleration, which can be directly felt by the owner.

Whenever the engine of EFI vehicle is empty, the accelerator pedal explodes in neutral for 3000 revolutions, and then the oil suddenly accumulates. Pay attention to the pointer of the tachometer at this time. When the pointer quickly drops to 1, 000 turns to 1, 200 turns, the pointer will pause a little, then drop to about 800 turns, and the idle speed will be stable. At this point, the throttle is completely normal.

When the pointer quickly drops to 800 rpm, the throttle valve is slightly dirty, but it still needs cleaning, which is basically normal.

Baidu encyclopedia-Volkswagen

Baidu encyclopedia-automobile power system