What is the problem when the EPC light of Refine is on?
4 Answers
When the EPC light of Refine is on, it may indicate the following two issues: 1. Dirty throttle valve, which should be cleaned. 2. Brake light not working, requiring bulb replacement or inspection of the brake switch and wiring. Here are some relevant details: 1. A constantly illuminated EPC warning light indicates a fault in the engine management system or electronic control, often accompanied by unstable idling or cold start engine vibrations. For domestic car owners, this is usually caused by the quality of fuel and dirty driving conditions. It is recommended to drive to a service station as soon as possible for inspection, and cleaning the throttle valve can resolve the issue. 2. The EPC indicator light will illuminate when the ignition is turned on for a function check. If this light comes on while driving, it indicates a fault in the engine power electronic control system. The engine must be checked immediately.
A few days ago, the EPC light in my JAC Refine came on, which was really unsettling. As a long-time owner, I've experienced similar issues several times. The EPC light indicates an Electronic Power Control system fault, which could mean a faulty throttle position sensor or loose wiring connection. I checked the battery terminals myself and found them slightly loose - tightening them made the light go off. But sometimes the sensor is genuinely damaged, requiring a visit to the repair shop for diagnostic computer scanning. When the light is on, the car may experience sluggish acceleration, seriously affecting driving safety. I suggest not delaying - either perform simple self-checks or seek professional help immediately. Regular throttle maintenance like cleaning every 20,000 km can prevent this issue.
When I saw the EPC light come on, I immediately pulled over. Worried that the car might have a serious issue, I asked a friend and learned that this light indicates an abnormality in the electronic throttle control. Symptoms include poor throttle response or even a lack of acceleration, which can be risky when driving on the highway. A simple self-check involves inspecting whether the battery connections are loose or corroded. However, never risk continuing to drive—it's best to call a tow truck and have the car taken to a professional repair shop. Common causes also include a faulty pedal sensor or aging wiring harness. The repair cost isn't too high, but don't delay, as it could lead to engine problems and compromise driving safety. Addressing it promptly will ensure peace of mind on the road.
In my car repair experience, the Ruifeng EPC light is usually triggered by the electronic throttle system. Common causes include excessive carbon buildup in the throttle requiring cleaning, faulty sensor signals, or software false alarms. Using a diagnostic tool to read fault codes can quickly pinpoint the issue, such as replacing a sensor to solve it. Carbon cleaning is simple and inexpensive, with preventive measures including avoiding prolonged low-speed driving. If addressed promptly, the vehicle can restore normal throttle response.
