See if it is throwing a code. Gauge cluster might be bad as it was common in previous years. And check the output voltage and standing battery voltage. As with all these units, if you disconnect the battery for 30 min the problem sometimes goes away. (system reset) www.trailvoy.com
the dashboard cluster could have broken. That happened to my 2004 trailblazer and I had to get it replaced
There is no fuse just for the speedometer. If the speedometer is not working, you may have a problem in the dash gauges cluster, or a vehicle speed sensor problem.
If the speedometer and the odometer are not working, I would suspect the VSS (vehicle speed sensor). If only the speedometer is not working I would suspect the instrument cluster has problems.
If the speedometer in your Voyager is not working, you might have a problem with a disconnected cable or with the fuse to the display. You could also have an issue with a sensor.
Most likely speedometer cable
Check your vehicle speed sensor. It controls your RPM's and your Speedometer. Hope this helps.
A wire going to the battery broke off, when it was reconnected the gauges and lights on the gauges start working again, however the speedometer and the tachometer did not operate.
If the speedometer and abs light are not working then you have a speed sensor problem. If the speedometer or odometer are not working then you will need to take it to the dealership and have them send it off for repair.
The odometer on a 96 Ford Explorer is tied into the speedometer. If the speedometer is working then there is a gear problem inside of the speedometer causing the odometer to not work.
You may have an electrical problem. need a professional tech to look at it. I just found out that it is a gauge cluster problem. This is not the first time I heard this as I did call the dealership and explained to the mechanic what was happening, he said and the same thing. It is not uncommon for this problem in trailblazers. If the gauges are not working, then your battery is not getting charged up.
the cable done came lose was the problem
we had to replace the speed sensor in mine and it corrected the problem with the speedometer and the shifting. Good luck