Do the gas gage and speedometer have fuses to check and if so, which are they ? on 1994 Dodge Ram Van B250

speedometer and gas gage don't work! how can I find problem?

Asked by for the 1994 Dodge Ram Van B250
Instrument gauges use an ISTR fuse
Thank you I will check the fuse box first before I remove the gas tank float and replace the speedometer cable