What does the EPC fault code mean?
2 Answers
The display of EPC in a car indicates a fault in the engine power control management system. The reasons for the EPC display in a car are as follows: 1. In most cases, the EPC display is caused by a dirty electronic throttle or excessive carbon deposits. 2. Other possible reasons include the use of substandard fuel, a malfunction in the ECU (engine control unit), or insufficient car battery power. More information about EPC is as follows: 1. EPC stands for Electronic-Power-Control (full name: Engine Electronic Stability System), also known as the electronic throttle. 2. This system consists of components such as sensors and controllers.
A few days ago, my old Bora also had the EPC light on, which scared me into immediately finding a mechanic. The mechanic said EPC stands for Electronic Power Control, which specifically manages the throttle and power output. He hooked it up to a computer and found that the brake light switch was faulty, causing unstable throttle pedal signals as well. This issue is really nasty—the throttle can suddenly become unresponsive, especially dangerous when overtaking. If the light comes on during rainy days, it’s likely due to water getting into the pedal sensor. The repair isn’t expensive—just replacing the sensor costs 200-300 RMB—but delaying it could fry the transmission module, which would cost thousands! My advice: read the fault codes as soon as the light comes on, and never force the car to keep running.
