Help with speedometer, odometer, and fuel gauge issue

[Scott Wells]

Hello. I own a 1999 Rx300 and a few days ago, when pulling into a gas station, I heard a light "Pop.' Didn't think anything of it until When I was finishing my drive home and noticed that the speedometer wasn't working, and that while the odometer display was working, the mileage wasn't increasing (also, I turned On my GPS to use as a speedometer).  Also noticed the fuel gauge fluctuating while the vehicle was in motion.

I'm curious if there's a fuse, or wiring connection, I should check first before going to a service station. The RPM gauge works fine, and the Automatic transmission shifts as it should, so I don't think it's the speed sensor.

 

Any advice is appreciated!

[RX400h]

I believe code P0500 (if you scan and see this) is for the transmission Vehicle Speed Sensor Malfunction.
Did you scan for codes?