Its on Page AC-33. They are called They are called water temperature switch No.2 and No.3. Found on the 7M-GTE E/G model only. The diagrams are a bit tricky to interpret.
It looks like the N0.3 switch causes the radiator fan to come on when the coolant gets to
100 C then shut off at 95 C. So there would be no resistance at the sensor until it gets to
100 C. The diagram for the No.2 A/C coolant switch is less clear.
http://www.cygnusx1.net/Supra/Librar...aspx?S=AC&P=33