How do you replace dashboard lights behind speedometer on 1993 sonoma

no, your fuel gauge is controlled by a fuel pump relay under your hood and if that doesn't fix it...it's the sending unit which is inside the fuel pump, inside your gas tank...speedometer is electronically controlled from your computer...if its not working it's your relay which can be found behind your speedometer...you would have to remove it from your dashboard to get to it.

Why would you have to remove the dashboard.

The Module can be accessed from under the dash on the passenger side.

Are you talking about the plastic housing part or the steel piece under that?

In my experience the bulb went out and needed to be replaced.

You need to replace the speedometer cable it is binding up from wear.

If you want to fix this then you will have to remove the dash fascia and gain access to whats behind the instrument cluster, There are a handful of incandescent bulbs located behind the gauge faces. Replace them and you will be good to go.

Remove the 5 mounting screws from the instrument cluster trim plate and remove the trim plate. Remove the 4 mounting screws from the instrument panel face plate and remove the face plate.Remove the instrument light grid from the center of the cluster. From behind the instrument cluster reach behind the speedometer and disconnect the speedometer cable by releasing the tab. Pull the cluster forward just enough to detach the "check engine" light bulb from the center of the cluster. Remove the instrument cluster from the dashboard.

toyota have them they go in easy.

Check operation & wiring at light control rheostat (left side of dash) & If everything else with electrical is OK, sounds like the bulbs may have simply blown. You will have to pull out instrument cluster to get at the bulbs.

take the dash apart on the driver side and it will be up in the cluster panel