What is the issue when the vehicle's self-check EPC light is on?
1 Answers
The main reasons for the EPC warning light to illuminate in a car: 1. A constantly lit EPC light indicates a fault in the engine management system or electronic control, often accompanied by symptoms such as unstable idling or engine shaking during cold starts. 2. The EPC indicator light will illuminate when the ignition is turned on for a functional check. If this light comes on while driving, it signifies a fault in the engine's power electronic control system. The engine must be inspected immediately. Generally, issues such as a dirty throttle body, vacuum leaks in the intake system, a faulty brake switch, or the engine not being upgraded in time can cause EPC faults. 3. During the vehicle's self-check, the EPC light will stay on for a few seconds before turning off. If a fault is present, this light will remain illuminated. 4. If the throttle is dirty, it should be cleaned. 5. If the brake lights are not working, replace the bulbs or check the brake switch and wiring. Additionally, poor fuel quality can also trigger the EPC light. 6. Insufficient battery power can also cause the EPC light to illuminate. A quick solution to low battery power is to use another vehicle to charge the battery. The fundamental solution is to replace the battery.
