My car's speedmator does not work..Help! on 1996 Nissan Maxima

I have tried everything... replacing the speed sensor attached to the trans... replacing the actual speedmator piece attached to the dash... I think it might be a wire issue.. but I don't know where to start fixing the issue. I dont have alot of money and fix most things with my bf and my dad. has this issue happened to anyone else? and what did you do?

Asked by for the 1996 Nissan Maxima
No man this happens on all the 4th gen maximas go to the junk yard get a new cluster with similar miles so 100000 doesnt become 230000 miles. Its also illegal to misrepresent the miles on the car. 5 screws ur Done. Ppl let stop making this so complicated
3 more answers
Wiring diagram and a volt-ohmmeter to start. AND an understanding of the COMPLETE circuit and how it works.
Need to confirm that screws were tightened on back of instrument cluster & confirm that there are no breaks in the schematics on the instrument cluster.
I actually had an issue with my other vehicle (00 pathfinder) I had to replace the entire console unit on the truck. About 5 years later the tachometer went out on my 96 maxima. But in this situation the cable to the tachometer snapped ( and I actually heard it). no plans to fix it yet thou.