What causes the EPC light to illuminate in JAC trucks?
2 Answers
Here are the reasons for the EPC light illumination: 1. Excessive carbon buildup in the throttle: When there's too much carbon deposit in the throttle, it affects the vehicle's power, causing issues like sluggish acceleration and unresponsiveness to throttle input. The throttle needs timely cleaning. 2. Faulty brake light switch: Poor contact or failure of the brake light switch can also trigger the EPC light. Prompt repair is necessary to prevent safety hazards while driving. 3. Intake system leakage: Air intake leaks disrupt normal fuel combustion in the engine. Immediate workshop repair is required. 4. Overheated engine: Excessive engine temperature impacts its service life. Shut off the vehicle to allow temperature to return to normal levels.
Last time I was delivering goods in my JAC truck when the EPC light suddenly came on, which immediately gave me a start. After checking the information, I found that it usually indicates an abnormality in the electronic control system. Possible causes include a faulty throttle position sensor, where the sensor fails to detect the correct position, triggering an error; or excessive carbon buildup in the throttle body, causing it to open and close improperly and affecting power output. Loose or short-circuited wiring connections are also common factors. If this issue isn't addressed promptly, stepping on the accelerator may yield no response, resulting in weak acceleration, which can be quite dangerous on highways. My solution was to visit a nearby repair shop to plug in a diagnostic tool and read the fault code, which easily resolved the issue and even saved me some fuel costs. It's important to keep the vehicle clean to avoid dust accumulation.
