What is the fault of automobile instrument epc? How to solve

1. The throttle valve is dirty and needs cleaning;

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

3, oil problem, EPC fault light will also light up;

4. If the battery is low, the EPC fault light will light up.

ESP is the abbreviation of English Electronic Stability Program, which is translated into Chinese as "electronic stability program". It analyzes the vehicle running state information from various sensors.

Then send rectification instructions to ABS, EBD, etc. Help the vehicle maintain dynamic balance. ESP can keep the vehicle in the best stability in all situations, especially in the case of oversteer or understeer.

Extended data

EPC system composition

1. Accelerator pedal module with accelerator pedal position sensor-used to determine the pedal position and transmit the pedal position signal to the control unit.

2. Engine Control Unit (ECU)- receives the signal from the pedal position sensor and calculates the required power according to the input voltage signal. According to other torque signals such as sudden acceleration, air conditioning and automatic transmission start, the actual throttle opening is calculated and the throttle system is monitored.

3. Throttle control unit-controls the required air intake, adjusts the throttle opening according to the signal provided by the control system, and feeds back the throttle signal.

4. Throttle fault light (EPC light on Volkswagen instrument)-provides the driver with throttle fault information.

5. Sensors and actuator sensors: accelerator pedal module with accelerator pedal sensors G79 and G 185, G 187 and G 188, with throttle opening sensor, throttle controller J338, clutch pedal switch F36, brake pedal switch F47 and brake light switch F.

6. Actuator: G 186 and G338, K 132c (marking gear shifter, equivalent to oil float) control system with throttle drive device determines the pedal position according to two signals.

Baidu Encyclopedia-Body Electronic Stability System