What to do if the car USB port suddenly loses power?

[McPaul]

First, determine whether the USB port has poor contact. If the problem persists, check whether the current of the USB port is normal. If it still doesn't work, contact the supplier promptly for a detailed inspection and repair of the main control and USB port. Below is relevant information about USB: 1. In-Vehicle Infotainment (IVI) is a comprehensive in-vehicle information processing system that uses a dedicated in-vehicle central processor, based on the vehicle bus system and internet services. IVI can achieve a series of applications, including 3D navigation, real-time traffic conditions, IPTV, assisted driving, fault detection, vehicle information, body control, mobile office, wireless communication, online entertainment functions, and TSP services, greatly enhancing the vehicle's electronic, networked, and intelligent levels. 2. SiViLINK features direct display on terminal device screens, seamless two-way interactive operation, and synchronized audio-video output in terms of product form. In terms of product performance, it offers exclusive CarMode display, optimized USB 2.0 transmission protocol for applications, high-speed image transmission of over 20 frames per second, compatibility with most smartphones, easy implementation of communication, navigation, gaming, and a vast array of applications, support for Bluetooth audio signal output, plug-and-play functionality, and portability.

[LaAlexander]

I've encountered the issue of a car USB port suddenly losing power several times. Start with the simplest troubleshooting step: unplug the current device and try another phone or charging device to determine whether it's a USB port issue or a device malfunction. If other devices also don't work, check the charging cable—sometimes aging or bent cables can cause disconnections, so test with a new cable. The USB port might be clogged with dust or debris; gently clean it with a soft brush or compressed air. Next, inspect the fuse box, usually located under the dashboard or in the engine compartment. Refer to the manual to locate the USB-related fuse and check if it's blown—if it appears blackened, replace it with one of the same rating. Sometimes, short circuits from vehicle modifications can also cause this issue—I learned this the hard way when I modified my car's audio system. If none of these steps work, consider a faulty USB module or vehicle power supply issue. It's safer to have it checked at a professional shop to avoid further damage from improper handling. During regular maintenance, ask the technician to inspect the port to extend its lifespan.