Trouble Codes from Coolant Temp Light

[finaljudgement]

I have a shop manual that I downloaded. It has nothing about codes from the coolant temp light. I called the dealer and they have a scanner that will read the codes. Costs $100 but i think I am going to do it. Scoot does not overheat, coolant level is good and coolant is fresh. The service manager said that the fan thermal switch and the warning light are on the same circuit so it is likely to be a wiring problem.

Thanks for your input.

Finaljudgement