If the USB port is not working in Your 2014 Honda Accord You may have a wiring issue. For the USB port to work, the electrical current has to flow from the head unit of the stereo to the back of the port. If anywhere in between there the wiring becomes damaged it could cause the port do not work. Wiring could get damaged from a short which would cause the wiring to heat up and melt the coating. It could also become damaged by rodents, they have a tendency to like to chew on things. The easiest way to detecting an electrical issue is with a multiMeter, probe the Contacts inside the port to see if You are receiving a voltage. The contacts may be d***y also, no dirt dust and other debris can get inside the port and weaken the electrical signal.
George M.
April 10, 2020
If the usb port is not working in a 2014 honda accord you will want to check the fuses to the radio as well as the wire to the usb.
Richard M
October 11, 2021
Try spraying electronic cleaner into the port. It dries quickly also. Maybe also vacuum the port for debris.
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