1988 Nissan 200sx: The speedometer, techometer, and odometer do not work at all. What are the possible problems and how much would it cost to repair them personally?

Strange punctuation and capitalization. That should be one sentence with one period at the end.

The law says you only need a working speedometer. To fix the odometer, you would need to remove the unit and send it for repair. Usually the speedo fails, especially because it is cable operated. It appears to be a known issue. Video and articles in the link.

https://www.google.com/search?q=1988+Buick+Regal+Odometer+Doesn%27t+Work

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I had got its manual from
online store www.reliable-store.com. Here's the site link I am sure they will help you

I think you should buy repair manual first for your vehicle after that it will be easy for you to solve the problem. Check the link may be you will get something useful here 1988 Nissan 200SX

you need to buy an alignment rack, they cost a few thousand dollars, you will need a shop to install it in too. might be cheaper to just take it to an alignment shop and pay them 30 bucks to do it, as often as you are going to need an alignment kind of wasteful to buy the cow when you only need a glass of milk.

Infiniti or nissan dealer parts department

My gas guage, speed odometer and tempiture does not work
The speed odometre is reading 9999999 what should i do

blown fuse!?

The teeth on the ODO gear are most likely stripped. Seen this a hundred times. Dealer- only repair unless you buy a used speedo head.

Nissan Scope Technician- 10 years with Nissan

dash boar is electric. the fuses for that are on almost under the dashboard. like in fron of the drivers left leg there is a cover you have to pull off. but you may need to replace the cluster.

I think your best bet is to contact Nissan directly. It's the third section down.