What is the reason why the rear USB of the Baojun 730 cannot charge?
2 Answers
The rear USB of the Baojun 730 may not be able to charge due to a blown fuse, which can be resolved by replacing the fuse. Alternatively, it could be because the tail plug is incompatible. The USB interface in a car primarily utilizes the vehicle's standard power supply to charge electrical devices via USB or serve as a fixed power interface for electrical equipment. The USB interface is a type of vehicle transmission line, known for its fast transmission speed, ease of use, support for hot-plugging, flexible connection, and independent power supply. It is typically a universal interface for USB devices such as flash drives and MP3 players. The Baojun 730 has body dimensions of 4710mm in length, 1780mm in width, and 1740mm in height, with a wheelbase of 2750mm. The 2019 Baojun 730 CVT version comes standard with an 8-inch floating central control multimedia screen, equipped with functions like Carplay and the SSPLINK in-car connectivity platform, which supports both Android and Apple systems simultaneously.
In my experience with the Baojun 730's rear USB not charging issue, the most common cause is a faulty USB port itself. Repeatedly plugging and unplugging phone charging cables can loosen the connection or cause internal contact oxidation/breakage. Also, check the fuse—Baojun's fuse box is usually located below the steering wheel on the left side, labeled 'Power Outlet.' If the 5A fuse is blown, simply replacing it should solve the problem. Wiring issues could also be the culprit, such as aging or broken wiring from the head unit to the rear harness. Use a multimeter to check if the power supply voltage is a normal 12V. I recommend also inspecting other points, like whether the cigarette lighter works—if not, it might indicate a full-vehicle electrical issue. USB charging is part of the low-voltage system, so avoid using off-brand chargers to prevent overload. Clean port dust yourself if needed. Generally, try simple fixes first; if that doesn’t work, seek professional inspection for safety.
