Any one know whether the TOYOTA Prius V AUX USB INPUT PORT P/N 86190-48030 installed in the lower front console has an integral fuse or fusible link? Not getting power or connectivity to head unit. Thanks.
No fuses likely but you could ohm out the wires. I give it 95% no internal fuse as Toyota and everyone else typically current limits usb charging power. It appears half of the wires go to the ext box and the other half go to the head unit.
Thanks. Guess I need to break it down again. In your photo, which connector goes to the console USB module?
First, I assume your car originally was cabled for a 57011 head unit with an ext module. So the cabling should be the same. But there is one cable that could go to the head unit or the extension module. Here are some pics of the wiring. Note the cable in between the two boxes. And a pdf on how to add an ext module
Yes, a 57011, on which I swapped out a failed YY050 extension box for a known working (and does, on APPS, MAPS, NAV, BLUETOOTH) and replaced all existing harnesses as were, but no USB connectivity or power before or after. Which is the USB harness in your photo of the backs of the Siamesed units? Thanks .
Two years later, but I am wondering if you ever solved the issue @Air_Boss? I just got a prius v 2012, and do not have USB power or connectivity. I got another head unit (from a 2016), but still no USB. I decided to cut the USB wiring coming from the head unit to test for voltage. Only a few millivolts. I also have tried a different harness on the rear of the radio, still with no 5V power.
You did not say which mfd model you have. Most of the time its a 57011 with an "external" module (mounted on the bottom of the mfd) which connects to the usb port. If the external module fails you lose usb connectivity. As I recall, some have disconnected the external module and reconnected the usb harness cable directly to the mfd with success.
The car came with a 57011, and I read on here about installing a radio from the facelift years. I bought and installed a 510057. That one only has one connection point for the USB, which is in the main body of the radio. I may try what you suggest, and hook up the original radio but without the extension box to see if the USB will work, and if so then I guess I bought a faulty facelift unit.
Never solved it. Replaced the Harmon box which solved another problem, but the USB never came back. I still consider a 510057 swap, but at this point, don't use the car enough to warrant the effort.
