Toyota Pickup Speedometer Not Working 85-94

https://rodsshop.org/get/online-auto-repair-manuals/

If your 85 to 94 Toyota Pickup speedometer has quit working and doesn't use a cable to drive it, this video should help. After a lot of testing that I pursued based off everyone's lame advice, I found it was the speedometer itself that was the issue. I sent the speedometer off to Atlanta Speedometer to get it repaired.

Here is the Link for the Wiring Schematic for the speedometer and cluster:
https://rodsshop.org/download-85-94-toy-pckup-instrmnt-wir-diagram/

Here is the link for the Speedometer Repair Service Atlanta Speedometer:
https://atlantaspeedometer.com/

After a bit of research and phone calls, I was led to believe that the issue with this 1994 Toyota Pickup was that it had bad wiring, a ground problem or a bad speed sensor. Everyone's reasoning was that if both the speedometer and odometer do not work, the it is an issue with the vehicle. Everyone told me that when the speedometer itself goes bad, that either the speedometer will work but not the odometer or that the odometer will work but not the speedometer.

Well I am her to save you time and money. After a lot of testing, I proved that the cluster was bad and it wasn't the vehicle. I then contacted Atlanta Speedometer and they told me that there are two components that are common to go bad in that year range unit. It was also common for some contacts in the speedometer to become corroded, enough so that they have to be replaced. They charged at the time, $40 plus you have to pay for shipping both ways, to diagnose it. If it needs repaired, the $40 goes to the repair.

I had talked to about 4 different Speedometer repair shops and this one was the most knowledgeable, friendliest and cheapest than all the others. They were super fast on diagnosing the unit and getting it back to me. The whole experience was under $200. If I had went that route in the very beginning, the customer would have had his truck back a lot faster and we would have spent less money. I would suggest not to ever purchase a used one unless you are going to get a written guarantee that if doesn't work, you get your money back.

I have provided the wiring schematic for the instrument cluster:
https://rodsshop.org/download-85-94-toy-pckup-instrmnt-wir-diagram/

However, I would highly recommend getting a full automotive manual that covers everything just in case you have other issues. The best online manuals I have seen to this date and I use quite often in my shop are RepairSurge Manuals:
https://rodsshop.org/get/online-auto-repair-manuals/