What does it mean when the EPC light is on in the JAC Refine S3?
2 Answers
This is due to a dirty throttle body, which should be cleaned. Below is an introduction about the Refine S3: 1. Exterior: The exterior details complement the overall design, with the air intake grille featuring three prominent chrome strips, which have become a signature of the Refine S3. The front and rear light designs, along with the window lines, are accentuated by chrome decorations on the windows and lower door sills. 2. Interior: The Refine S3 features an overall dark interior with red stitching, and the dashboard is adorned with horizontal silver trim, giving it a sporty feel. The instrument cluster adopts a dual-dial design with clear driving information display and adjustable brightness. The three-spoke multifunction steering wheel is wrapped in genuine leather and integrates audio controls, cruise control, and Bluetooth functions for easy operation.
I've also been researching the EPC light issue on the JAC Refine S3 recently. This warning light actually indicates a problem with the electronic throttle control system, and it usually illuminates when there's a system error. The most common causes are excessive carbon buildup in the throttle body or sensor malfunctions, such as issues with the air flow sensor or position sensor signals. If the throttle gets clogged with oil deposits, restricting airflow, the control unit will trigger an error; if sensors fail and provide inaccurate signals, the EPC light comes on. It could also be due to loose wiring connections or short circuits, which are more likely to be triggered during voltage fluctuations. Among JAC models, the S3's electronic control system might be more sensitive, especially in low-temperature or humid conditions. For routine checks, start by inspecting whether the throttle body needs cleaning - it's a simple procedure. If you can't handle it yourself, take it to an authorized repair shop to read the fault codes, avoiding delays that could lead to skyrocketing fuel consumption or halved power output. Regular maintenance can prevent such issues - it's recommended to inspect the throttle body every 10,000 kilometers.
