I have a 2003 Honda Odyessey, The speedometer stopped working. So far I've changed the instrument cluster and the speed sensor, and the fuses. still no change. Anybody have any ideas on this?

If your 2003 Saturn Vue died as you were pulling up to a stop and the speedometer isn't working now, it's possible that there may be an issue with the vehicle speed sensor or the instrument cluster.
The vehicle speed sensor is a small electronic device that is located on the transmission or transaxle. It sends a signal to the vehicle's computer to tell it how fast the vehicle is traveling. If the vehicle speed sensor is not working properly, the speedometer may not work correctly or at all.
On the other hand, if the instrument cluster is malfunctioning, it could cause the speedometer to stop working. If the instrument cluster has a loose connection or a blown fuse, this could also cause the speedometer to stop working.
It's best to have your vehicle checked by a certified mechanic who can diagnose the issue and recommend the necessary repairs. They will be able to test the vehicle speed sensor and instrument cluster to determine the root cause of the problem.

Try to buy the New one and test is going to give

speedometer runs with several sensors cluster fuse if nothing works in cluster on key on cycle but speedometer uses both vehicle speed sensor and right front wheel speed sensor to operate . Vehicle speed sensor is located on top of transmission near right axle shaft

Instrument cluster gauge problem not fuse or relay . GM had bad stepper motor's inside the cluster that drives the gauges . 2003 to 2006 . You have to have it sent out to be fixed , unless you know how to solder electronic componets.
How to repair GM Instrument Cluster Speedometer Gauge Stepper

There is no dedicated fuse for speedometer only. There is voltage and ground for the instrument cluster.
The vehicle speed sensor sends a signal to pcm concerning speed then the pcm sends signal to instrument cluster for speedometer.

No fuse just for the speedometer , fuse for whole instrument cluster . No reset either , hooking up a factory scan tool to check for DTC's - diagnostic trouble codes in the instrument cluster or BCM - body control module . Could be a bad stepper motor in the instrument cluster . GM vehicles from 2003 to 2006 had bad stepper motors .
How to repair GM Instrument Cluster Speedometer Gauge Stepper

if the odometer is working then the problem is with the speedometer head unit as the odometer gets its information from the same source as the speedometer. you can have the speedometer head checked and fixed if its fixable.

Based on your actions, it sounds like a wiring problem.
Could be a weak connection at the cluster, or the speed sensor.

You've replaced the two main components that would cause this condition. Does your odometer still work? If it does, then the problem is with the instrument cluster. If the odometer does not work, you should check the wiring from speed sensor to the PCM.

sounds like vehicle speed sensor i had to replace instrument cluster on my civic